Vorshlag 468x60 Banner
PrevPrev Go to previous topic
NextNext Go to next topic
Last Post 10 Jun 2014 11:11 AM by  Fair
Brianne Corn's Pike's Peak Subaru STi
 13 Replies
Sort:
You are not authorized to post a reply.
Author Messages
Fair
Veteran Member
Veteran Member
Posts:1021


--
10 Jul 2012 10:16 AM

    Brianne Corn took her 2005 Subaru STi to Pikes Peak International Hill Climb (PPIHC) in 2011 and came away with a historic class win in the AWD Time Attack class. She is only the 2nd woman in 83 years of PPIHC's running to win a class, and she did it on a shoestring budget. That was only one of many amazing driving feats she pulled off in 2011, which also included: a historic BMod open class win at the SCCA Solo National Championships (only the 3rd woman to ever win an open class), she was the Rally America Open Light Shootout Champion, raced in the support series at the WRC Mexico rally, and was named SCCA's Driver of the Year. Whew!

    Brianne's boyfriend and race crew chief JasonM is one of our suspension guru's here at Vorshlag, and he does a lot of race preparation on the PPIHC Subaru as well as other cars she races - along with Brianne, who is an accomplished mechanic in her own right. Vorshlag was a small sponsor for this driver/car combo in 2011, but is stepping it up this year to do more, on a very compressed time schedule.

    The 2011 race event was the last running of the Pikes Peak Hill Climb that had dirt sections of the course, which was approximately 15% of the race route. Paving of the entire road up the mountain was completed in August, 2011, weeks after the 2011 PPIHC event. This means that 2012 is the first year that the entire 12.42 miles of Pike's Peak mountain road is paved. This massive change in surface has attracted a whole new crowd of hill climb and road racers to this historic event. 2012 had so many entrants that for the first time the organizers had to announce qualifying during the practice days, to weed down the field of entrants for race day. In 2013, the PPIHC event is being changed to a 2-day race format, to accommodate even more racers.

    One other thing that changed was the merging of some classes. Since there's no longer a gravel element to this hill climb, the AWD and 2WD Time Attack classes were merged for 2012. This brings in some serious 2WD machinery to the new combined class (the old 2WD Time Attack record was 44 seconds faster than the AWD record!), such as Rhys Millen in the V8 Hyundai Genesis Coupe, a works Porsche GT2 911 with 700+ hp, among others. Brianne and Jason knew they'd have to step up the power, grip and the preparation level of the car for 2012 to have another shot at the win.


    Nobuhiro "Monster" Tajima next to Brianne Corn at the PPIHC event in 2011

    To address the power department, AWD Tuning in Flower Mound, TX built an all new motor, added a massive Perrin front mount intercooler kit, and a host of other horsepower upgrades. This all-new motor was built on very short notice. Since the event was delayed until mid August due to the wildfires in the Colorado area, there was some extra time to do more than just install some new shocks and camber plates, so we now have it at Vorshlag for various updates for roughly 3 weeks. Our sponsorship and labor commitment went from minor, to... a little more than that. We're jumping onto an existing, winning race car hoping to do a few upgrades that make sense in the short time window we were lucky enough to have.

    DSC1147-S.jpg 457982467_oJNwk-S.jpg

    Since Vorshlag specializes in suspension design and race preparation, we had originally hoped to concentrate on just upgrades to the suspension. Off come the Tein coilovers and top hats and on will go some AST dampers (We had a set of GD AST 4100s sitting on the shelf), Swift springs, and Vorshlag camber plates, front and rear. After seeing the skinny tires they ran and won on last year, I insisted that we also add some of our Vorshlag/D-Force, 5x114.3 pattern, 18x10", lightweight 5-spoke wheels. On those wide wheels will go some 285/30/18 Hoosier R6 tires, in place of the old 245mm Hoosiers. Having +40mm of tire on each corner will improve grip tremendously, especially when there are 156 turns and 11+ minutes of abuse per lap.

    1121600055_8eCW6-S.jpg 1208168974_fqnaZ-S.jpg
    Left: 18x10" wheels and custom flares on a 2-door Subaru Impreza. Right: 18x11" wheels and custom box flares on a BMW E30

    To make those big tires fit this stock body chassis properly, at full bump travel and full steering lock, is no small feat. Luckily it is something Vorshlag has tackled many times in the past, on various chassis, including the two shown above. Essentially the shape of the factory front STi "box flares" will be enlarged and all new steel rear flares will be added. We will show that work in this build thread, as well as the other race preparation work we will attack.

    Some substantial plumbing upgrades to many systems will also be performed, with parts/assistance/guidance from the hose and fitting wizards from Pirtek Plano South, including the shop owner Ed (who is a friend of Vorshlag) and two more guys from his crew. Both Ed and Mike from Pirtek are die-hard racers and both have extensive knowledge of many areas of race preparation, above and beyond just plumbing. Making a race car that can finish the entire PPIHC event takes some serious attention in the plumbing department, as the cooling, oiling, and fuel systems are taxed to their maximum in this event. With Pirtek's help we hope to make the plumbing on this car bulletproof.

    We're excited that Vorshlag have a chance to wrench on this already previously winning, fast hillclimb car, and we mostly hope we can improve the handling & grip (since that's our specialty). Stay tuned for more details on the work being performed here at Vorshlag over the next 3-4 weeks. We will cross-post this thread on SCCAForums, Corner-Carvers, NASIOC, RRAX, and the Vorshlag forum.

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    17 Jul 2012 10:55 AM

    Here's what the crew chief JasonM wrote about the car in 2011:

    Jason M;955044 wrote:

    We bought the car just a few weeks before leaving for the PPIHC and had very little time to get the engine built. We used every bit of adjustability in the chassis and engine and every hour available to tune it on site in Colorado. Everything that was "stock" limited us somewhat and everything that was aftermarket was alternately genius or crap!

    The 2011 version: The car is surprisingly stock. The tub is uncut and the only bracing is a rear bolt-in Cobb tower brace and the welded in SCCA legal road racing cage. The HVAC parts have been removed and a fixed firebottle system has been installed. Sparco seats (good) and some not-to-be named here sucky harnesses were installed.

    Engine is stock block, stock crank, Manley rods, Arias pistons, MA Performance head studs, stock rebuilt heads, Grimspeed TGV deletes, Grimspeed coated and polished intake manifold, Grimspeed ported and polished throttle body, AWD Tuning modified WRX injectors, Warbro 225 fuel pump, MA Performance 20G turbo, Perrin equal length headers, Grimspeed coated up-pipe, TIAL 40mm wastgate, Perrin oversized topmount intercooler, Samco inlet pipe, Grimspeed electronic boost controller, APS intake, Cobb catless downpipe, Cobb exhaust, Exidy stage 1 street clutch, Amsoil Dominator racing oil. The engine was run on Hyperfuels E-95. We did use DEI heat wrap on the header and a Fluidyne radiator. With a custom AWD Tuning tune loaded onto the OEM ECU it produced 358 hp at 5745 rpm and 400 ft/lbs at 4349 rpm.

    The transmisison, center diff, rear diff, diff controller, axles, hubs, etc were all stock except for Amsoil lubricants. We did use a Kartboy pitchmount and TurnInConcepts shift bushing kit and transmission mount bushings and diff outrigger bushings. We didn't have time to install some of the other bushings they provided. Vorshlag gave us lots of parts, but we only had time to install their studs and lug nuts. Their fantastic camber plates will replace the Tein units soon.

    The suspension was Tein Ultimate Spec Circuit Master Super Racing struts with camber plates and we removed the antisway bars. It's wasn't ideal, but we made it work. The rear trailing and lateral arms are Cusco pilloball arms. Front arms/subframe had an anti lift installed.

    The brakes were stock except for the DBA lightweight two-piece front rotors and Hawk DTC-60 pads. We did modify the original handbrake handle to lengthen it and make it non-locking.

    The steering wheel is a Sparco suede racing model with their keyed weld-on quick release.

    The race-day tires and wheels are Volks CE-28 Time Attacks in 17x8.5 with custom hand grooved Hoosier A6 tires in 245/40-17.

    The engine, turbo and tune produced an amazingly flat torque curve and was easy to drive with the stock transmission ratios. The suspension, tires and grooving took a lot of time to get right. We had just got the car bolted together and had no debugging time before arriving in Colorado, so we paid to use Pikes Peak International Raceway for testing days in addition to our practice days.

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    17 Jul 2012 10:57 AM

    Project Update for July 16, 2012: Well the Subaru has been here for a hair over a week and we've accomplished a good bit. Let's take a look and see what has happened. If you have never read one of my build thread posts before... I add a lot of pictures. We try to share race preparation tips whenever we can, so people can see what it takes to do what we're talking about. Since we tend to "over-share", we can see lots of second-guessing and internet criticism, which is fine. Just know that we have nearly a dozen experienced race techs working and/or "supervising" on this build - so rest assured that each modification shown has had a lot of criticism before the first cut was made. :)

    DSC2751-S.jpg DSC2755-S.jpg

    The first day it was here it was put in the air for a look inside, out and underneath. It was grimy, dirty and covered in muck after many years of hard race use, including blasting up Pikes Peak last year. Our guys wheeled it outside and put it up on jack stands. After a couple of hours with the pressure washer, suited up in rain gear + face shield, the underside and wheel well grime was mostly gone. The engine bay was washed with a bit more care and less pressure. Now it could be worked out on without too much nastiness getting on us. The Subaru is going to be wrapped from the shoulder line down, so all of the decals in those areas were removed and the panels cleaned.

    DSC2827-S.jpg DSC2819-S.jpg

    After a look by the plumbing experts at Pirtek Plano South, they made a list of items and systems to tear down further for a closer look (fuel tank, rear subframe, cooling system, etc). It quickly became apparent that they wanted to do a major plumbing upgrade on every system of the car, front to back. That seems a bit overboard, and it is a huge undertaking, but the Pirtek guys are friends of ours and Jason's and they wanted to show off some of their race car worthy hardware. Vorshlag uses Pirtek for all of our plumbing needs. This car was purchased and then prepped a whole two weeks before the 2011 Pike's Peak event, so some of the race preparation work done in that short timeframe, or by previous owners, was probably rushed. We've got about three weeks to go back and do some updates and us and the Pirtek guys will need every bit of that time to get this updated. Hill climbs are brutal on every system on a car, so going in with all new race parts should add reliability.

    DSC2885-S.jpg DSC2960-S.jpg

    After that first look few days later Pirtek came back with a three man team (Ed, Mike and John) and with JasonM's help they pulled the stock tank (full of E95!), then removed a tangled mess of OEM rubber and hard lines, as shown in the big box above. The long jumble of fuel hard lines from the tank to the engine bay are also gone for good. This box includes dozens of patches, fixes, and updates over the many years this car has been a race car. Not atypical when a race car has passed through several owners.

    DSC2959-S.jpg DSC2899-S.jpg

    The rear subframe was removed, along with the differential assembly, to make room to extract the fuel tank. Once the fuel tank was out the factory fuel pump + pick-up assembly was removed and upgraded. Deleted the in-tank filter, TIG-welded -6 AN bungs in place of the stock push-lock ends, and securely mounted an in-tank Walbro 255 lph pump to the pick-up. The Pirtek guys new submersible fuel line to connect it all, as the outer jacket is of course covered in fuel (alcohol). These new feed and return line connections on the exterior of the fuel tank will with be connected to the rest of the fuel system with braided -6 lines using proper AN fittings everywhere.

    It was noted that the subframe to chassis mounts were still OEM rubber, so a call was made to TurnInConcepts, who are sending a gaggle of their custom race bushings to install. Thanks! Once those arrive, we'll pop them in and reinstall the rear subframe; the fuel tank is already back in place.

    DSC2967-S.jpg DSC2954-S.jpg

    With the OEM fuel hard + soft lines and fuel rails out of the way, a new set of billet fuel rails were purchased and installed. A new Kinsler fuel pressure regulator is now mounted on the left front strut tower, which will regulate fuel supply to the new rails. A fuel pump surge tank made by Integrated Engineering and supplied by AWD Tuning (which uses a Bosch 044 pump mounted in the top), will be fed from the stock fuel tank by the 255 lph Walbro in-tank pump (see above), acting as a lift pump. A 100 micron pre-filter will be used before the surge tank/pump and a 10 micron filter will be in-line after the final fuel pump stage. I will show this area in more detail once these filters and the surge tank are permanently mounted and plumbed.

    DSC2745-S.jpg DSC2739-S.jpg

    With the Tein struts still installed, we mocked up the 18x10" wheels first with the 295/35/18 Nitto NT-05s that I ran on these wheels and our 2011 Mustang GT at the Optima Challenge event in June (200 treadwear minimum required - but even with that stipulation, these tires were terrible). The next day we rounded up an old set 285/30/18 Hoosier A6s from the shop that were mounted to the D-Force wheels, as Brianne will be running this wheel and tire package (on fresh A6s) for the Pike's Peak event. This now gave us the perfect package to build the steel box flares around (the custom flare work will be shown in my next post - it is well underway).

    DSC2890-S.jpg DSC2953-S.jpg

    That front bumper cover had to be trimmed considerably to fit around the massive Perrin front mount intercooler, which we did in four iterations until it fit juuuust right. The OEM front bumper crash structure is all gone, which is a requirement for this FMIC kit, I guess. The flexible plastic that the bumper cover is made of cuts like butter with an air powered body saw, or a cut off wheel and disc. Then you can fine tune the finish with a sanding disc in a 90° die grinder, as shown above. Once the melted slag hardens (in 30 seconds or so) use a de-burring tool to make the cut edge look clean and smooth. Those brake cooling ducts were done in years past, but we're going to re-make the lower corner sections of this bumper cover and relocate the duct openings, which are int he way of the FMIC piping.

    Cooling, Heat Management and Insulation

    DSC2792-S.jpg DSC2822-S.jpg

    This STi has seen the rigors of Pike's Peak before and Brianne's team knows you can never have too much cooling going up this mountain. At 14,000 feet the air is so thin that everything trying to radiate heat can't do it very well - there's not enough air particles to bump into the metal from the various radiators. Instead of leaving the engine oil cooler and transmission cooler stuck behind the new FMIC, we are going to place them in an unusual place - under the factory hood scoop. This area has a nice blast of cool, high pressure air which can be put to a new use - since the top mount intercooler is no longer there. This Subaru was not equipped with any sort of strut tower brace, but since the strut towers are so close to the firewall on a GD Subaru, it's not really necessary. Still, a brace does make a great mounting structure for these two oil coolers, so we built a strut brace for that purpose and mocked-up the coolers as far from the turbo as possible.

    DSC2826-S.jpg DSC2946-S.jpg

    The turbo itself will have a thermal blanket, as will the downpipe. The transmission tunnel will get some heat insulation, as will the firewall, clutch lines, fuel lines, and anything close to the turbo. The co-driver of this car usually has melted shoe soles by the end of a run, so hopefully the addition of all of this insulation and thermal wrap will help. Last year the clutch fluid boiled so badly that Brianne lost the clutch actuation 2/3rds if the way up the mountain, having to shift "clutchless" with extreme rev-matching - hopefully that problem will be gone for the 2012 run. The factory cooling fans were also melted on last year's run, so more DEI insulating wrap will go around the exhaust headers that run next to the radiator. The old aluminum radiator also started to "expand", so a replacement was found and will be installed shortly. A Moroso crankcase evap system oil catch tank was added and the factory battery will now reside in the trunk, for some front weight bias improvement.

    DSC2963-S.jpg DSC2900-S.jpg

    One thing we had to do to prepare for the rear flares was move the fuel fill pick-up tube and gas cap. It ended up being a bigger job than expected. The stock fuel fill location had a normal flip-out filler door that is right in the middle of the right side fender flare section, so we decided to move it into the trunk. There are no timed pit stops in hillclimb, so speedy filling is not a concern. With the gas tank removed, a hole was cut in the floor for the filler neck new routing and then opened up a bit more (this will be sealed once the location is nailed down).

    DSC2949-S.jpg DSC2952-S.jpg

    The factory fuel fill tubing runs in the right rear wheel well (that tube is shown in the 4th picture of this post), which is too close to the wheel/tire debris for comfort. Moving it into the trunk will now make it safe from road debris, as well as making the right rear fender flare easier to fabricate. The fuel filler neck relocation took a bit of thought and some fabrication time this past Saturday (when the shop is normally closed). I was the only one on hand that could weld at that time (which is scary), so I got tagged for this work. First, a piece of steel tubing was swedged and added to the stock up-bent piece (by Pirtek, who had two of their service trucks on hand), to extend it near the trunk opening. Half a dozen OEM brackets were cut off, some extraneous holes were welded closed, and two new brackets were welded to the fill tube. An aluminum bolt-on bracket was built and added to secure the filler neck to the trunk structure. The "Unleaded Fuel Only" nozzle restriction was cut out with a hole saw and smoothed, then the entire tube was painted and bolted into place. It wasn't half bad in the end, and I can point to one small part of this 3-week project and say "I did that". The rest of the welding on this project will be handled by a much more skilled fabricator - Vorshlag's Ryan B.

    I will discuss the custom box flares in my next post. They are progressing along nicely. The suspension we have in store is also pretty slick - stay tuned.

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    24 Jul 2012 12:16 PM

    Project Update for July 23, 2012: A lot of hours and late nights have gone into this project in the past 7 days. Plumbing, flares, suspension, and more. Let's get everyone caught up on the last week of Vorshlag work on Brianne's Corn's hill climb Subaru (including Brianne, who is also watching our work progress online) by the crews here at Vorshlag joined by our hose and fitting experts.

    Major Plumbing Upgrade Work

    The crew from Pirtek Plano South have burned a couple of nights and most of last Saturday at Vorshlag getting the complete plumbing upgrade of the car knocked out. This is a big job happening on a compressed schedule. First they worked with our crew to get every device mounted, then mapped and planned the hoses, got the AN fittings ordered. Once the fittings arrived (including some they custom built for this application, to reduce adapters) each dedicated hose end fitting (+ adapter, if needed) was installed on each device. With these in place the individual hose lengths can be measured, then the complete hoses were built at the Pirtek shop, then the hose + fitting assembly was installed on the car at Vorshlag. This is normally a multi-thousand dollar plumbing upgrade - luckily Pirtek is a sponsor to Brianne's race effort.

    DSC3053-S.jpg DSC3060-S.jpg

    The fuel filler tube hole is covered with a Hurst boot - yes, a manual shifter boot - and it works like a charm. The custom double-mount for the two fuel filters (pre- and post-surge tank pump) has rubber sheeting on both sides for vibration protection and bolts to a threaded fitting TIG-welded to the chassis (called a "weld nut"). The surge tank is mounted to the unibody through poly isolators as well.

    DSC3017-S.jpg DSC3012-S.jpg

    Vorshlag's fabricator Ryan and assistant Cameron re-worked the initial shape of the strut tower brace (aka: the dual oil cooler mount) with larger 3/4" square tubes for the forward section. Pre-drilled brackets were tack-welded in place, the coolers were bolted to these, and the AN fittings were pre-installed for hose routing. Ed from Pirtek is shown laying out some hoses under the hood - he will be traveling with Ryan and Jason from Vorshlag to help support the Brianne Corn Racing effort during the week of the PPIHC event and will be joined by 4 more Vorshlag employees around race day as well as tuners from AWD Tuning. If it "takes a village to raise a child", it takes a crew of experts in their respective fields to help make a car capable of winning at PPIHC. It goes without mention that it also requires an awesome driver and navigator, too! We know that formula is there, with Brianne Corn and Jeremy Rowland. We are all so excited to see this driver, navigator and this car attack the mountain again!

    DSC3010-S.jpg DSC3009-S.jpg

    With all of the fittings and hoses in hand, they got to work properly routing and plumbing it all. The RedHorse AN fittings look great, the hoses are all secured, the routing tweaked, and any hose that can rub against anything else will have some abrasion protective sleeve added.

    DSC3070-S.jpg DSC3072-S.jpg

    I will show more of the under hood work after the new coolant expansion tank is added and the new coolant lines are plumbed. That's happening in the next few days. At the moment the entire fuel system and oiling lines are all upgraded and completed. We still have heat management issues we want to address, but that's a job for next week.

    Suspension Upgrade Shaping Up

    With only a couple of weeks notice before the event, and a tighter than normal budget, AST-USA worked with Vorshlag and Brianne to come up with a custom set of inverted AST dampers that will suit this unique Tarmac Rally setup for this car. A mix of track worthy AST 5100 inverted front struts (45mm shaft) was paired up with some inverted AST 6100 Rally (50mm shaft) rear struts, for a combination that has the proper bump travel and extreme droop travel necessary when attacking the one of a kind Pikes Peak asphalt course (and again, this year is unlike any other before, with a fully paved course). The old front struts had almost zero droop travel, which is obvious when you look at the comparison picture of the old TEINs, the AST 5100s, 4100s and 5100 Rally struts. More travel = mo better! There were many corners last year where the car had 6" of air under a rear tire. Not conducive to good corner exit acceleration when you have a driven tire in the air.

    We tested with four different front struts on the car and ended up picking the off-the-shelf GD 5100 front struts after we found that they had the perfect amount of bump and droop travel. Ryan tweaked the mounting holes in the lower half-brackets on the strut bodies for maximum tire clearance. Then Erik and Stuart at AST-USA checked out and went though all of the struts in short order, and got them to us from start, to testing, to finished in under two days. It sure is handy being located next door to their shop! These struts look great and should be strong as hell on this car. Our standard Vorshlag GD front and rear camber plates will be on top of each strut, of course. To gain an extra 5mm of room for spring length our single row race radial bearingsare used in the front set - which we do on a lot of race cars. The GD rear plates/perches always use the single row radial bearings.

    DSC3002-S.jpg DSC3025-S.jpg

    One way to pick custom damper and spring lengths is by checking the travel on the car. We start by removing the springs and installing the strut (or shock) + the final top mount onto the car while suspended on a lift. Then we lower the car onto the tires and allow the suspension to compress down and touch the bump stops, then raise it up to check maximum droop (we check for fender flare clearance the same way, too!)

    DSC2999-S.jpg DSC3000-S.jpg

    We did this testing on both ends of the car with several dampers. Since we already had the wide body front flares completed in steel at this point, the front wheels we used were the custom-Vorshlag-run of 18x10" D-Force units, while the skinny stock wheels were tested inside the not-yet-flared rear fenders.

    These tests + lots of calculations dictated the proper spring lengths and rates for the unique dual spring set-up Jason is developing for each corner of this car. The front flare is made to allow the wheel outboard enough so that a 10-12" long spring assembly can be used. In the rear, it is set up to use 11-12" of spring stack, all placed above the tire. One of Vorshlag's spring vendors, Swift Springs USA, stepped up and sponsored Brianne's PPIHC race effort this year with free set of eight springs! That was very cool and much appreciated. Jason ordered those + another twelve springs from Swift for tuning purposes next week as well as during the week of the Pikes Peak event.

    DSC3007-S.jpg DSC3008-S.jpg

    Wide Body Flares - Part 1

    I didn't show much flare work in my last post, but it was already well underway (we began on Day 1). I have been posting teaser pics on the Vorshlag Facebook page, which if you "like" will show you spoilers of most of our projects before they are formally written up in our various build threads (as well as new products, long-term project cars we are selling, and other news). Let's take a step-by-step look at how we're making this custom fabricated set of steel fender flares for this car. As usual, we show more behind the scenes steps than most folks are willing to share, and hold back nothing.


    The factory box flares look great, but they have trouble covering more than a 255mm tire. Not good enough for Pike's Peak!

    The factory 2005 Subaru STi fenders already have a modest little box flare, and instead of lopping those off and taking a short cut by welding on a new rounded flare section from a donor BMW fender flare section (like we have done on non-STI Subarus in the past), the VoMo team instead opted for an exaggerated factory box flare. This is an old fabricator's trick where you take an existing flare section or bodyline, slice open the upper section, and extend it. Seems easy, but the proper execution of this method is time consuming and tricky. We're burning 1.5 man days per corner, just in fab work.

    DSC2797-S.jpg DSC2785-S.jpg

    Even though this process takes longer to do than the rounded flare transplant, or slapping-on some composite flares, we went with it for aesthetic reasons (it just plain looks right!), but also because it makes for a stronger, more durable finished unit. Steel flares can take a bit of a beating (smacking autocross cones, gravel hits, etc) that will normally crack fiberglass flares. Show me a real race car with fiberglass flares and I'll show you the cracks. We were also short on time for finding the right kind of widebody kit, such as ordering fiberglass fenders + overflares (which are usually built to order and almost never just sitting in stock). We could start making the steel flares in-house on day 1, which we did, using our past steel flare experience and the skills of our in-house fabricator Ryan. Sticking with steel worked for this tire size package, this car, this crew, and this timetable. Luckily the car owner Brianne left it up to us, as we were the ones that talked her into the 285mm tires.

    DSC2803-S.jpg DSC2801-S.jpg

    We looked at another similar project's work (Kevin Byrd's beautiful LS3 widebody E30 M3, of Two Guys Garage TV fame), followed his example, and modified this proven method to fit this Subaru's boxy body lines. The total amount of room added is about 2" per side, with a sliced/and-filled pie section only about 1-1.5"" wide at the top of the flare and a re-shaping of the radius where the flare meets the body. The front inner fender lip was also rolled once it was pieced back together. These flares will cover not only the 18x10" wheel and 285/30/18 Hoosier, but an even larger 18x10.5" wheel and wider 295 tire - in case Brianne wants to go wider in the future.

    DSC2957-S.jpg DSC2964-S.jpg

    A TIG welder was used with a very specific rod that can take a lot of heat without blowing out, and a very steady hand. These pictures show the cutting, slicing, patching, and re-shaping necessary to make a wide body flare in steel. What you don't see is the hammer and dolly work, the tweaked contours of the bumper covers to match, and the hours and hours spent getting the metal shaped and re-shaped to the final contours. There are a lot of radii built into the Subaru box flare, surprisingly! Overall, all I can say is: "It's a lot harder than it looks".

    DSC3062-S.jpg DSC3042-S.jpg

    We still have all hands on deck attacking these flares, trying not to let this push anyone's deadline back. In fact, last week we pushed up our own the deadline to get the car to the tuner half a week sooner than originally planned.

    Two of my racing buddies and I volunteered our bodywork talent (of which we have very little!) last Saturday to try to make these look "race car good" before the vinyl wrap. I came back on Sunday and did some more filler, did another round today, and I will keep attacking the bodywork every night to keep from dusting up the shop during the day - when they are cutting, welding, and wrenching on this car. I think I've ingested enough body filler dust to make a 1/25th scale, sand castle replica of Windsor Palace.

    DSC3089-S.jpg DSC3079-S.jpg

    So far we are on target to get the rolling chassis back over to AWDTuning on Thursday night or Friday, fully plumbed and on the big wheels/tires, for their tuning work. The flares won't likely be 100% done by then, but they should be clearanced and the 285mm tires functional. Hopefully the tuning can be wrapped up Friday and then that gives us all weekend to swap in the new Swift dual-spring set-up, corner balance and align the car, and work on more flare stuff. Hopefully we can sneak out of work for a few hours to do some track-side testing early next week as well. After the test (and any subsequent changes), we can vinyl wrap the car and add sponsor decals and number graphics.

    I will show one teaser pic of the rear flare work, then describe it in more detail in "Flares Part 2" - just know that the fronts were EASY to widen compared to the rear, which also encompass the rear doors as well as the fuel filler door:

    Nice, fat back end shaping up. See why we moved the fuel filler to the trunk? That fender will be seamless when its completed. Again, more pics of the rear flares next time...

    Stay tuned!

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    01 Aug 2012 08:07 PM

    Project Update for August 1, 2012: Wow, started writing this Monday and I'm still writing it on Wednesday. Its been a crazy week. The Subaru arrived back from AWD Tuning on Tuesday the 31st, who had it for 3 days sorting and tuning the new motor they built. I am not allowed to share the power numbers until after the race, other than to say it makes "plenty of horsepower" with the conservative tune necessary to complete the grueling PPIHC event. With no car to wrench on our guys here at Vorshlag took the weekend off (much needed!) but got back to work Tuesday morning, after it returned to Vorshlag. Let's get caught up from the last week of work.

    More Plumbing and Thermal Protection Updates

    Even after my last July 23rd thread update there was still a bit more plumbing to do. The engine bay had a factory late model STi plastic coolant expansion/fill tank, but that made us a tick nervous. It also was plumbed with hoses using worm gear clamps, which Pirtek wanted to change to use threaded ends. We found an aluminum Moroso expansion tank that looked pretty good. When it got here a few modifications were made and this new coolant expansion / overflow /whatever tank was mocked up in the car, as high as possible. Brackets were made to bolt it to the LH strut tower, then another threaded aluminum bung was TIG welded onto this tank (after it was machined down to a reasonable size on the lathe). The modified tank was then mounted and coolant lines plumbed to the radiator and turbocharger, with lines made by the guys at Pirtek. There's an overflow line (tied into the radiator's puke line) if the cap over-pressures as well. The high mounted location of the axillary tank makes the coolant (water only) system that much easier to fill and purge of air. Its also now metal instead of plastic, and has threaded connections instead of clamped.

    DSC3136-S.jpg DSC3178-S.jpg

    Below are some shots of more plumbing work, start with the two -6 braided stainless lines and Red Horse bulkhead connectors and end fittings for fuel. These two lines run inside the car (protected from being ripped off by under car debris) along a protected part under the cage, then snake behind the dash and come out through the center of the firewall, away from any heat source.

    DSC3107-S.jpg DSC3118-S.jpg

    Some more of our heat insulation solutions are shown below. The main source of heat is, of course, the turbo. It now has a form fitted thermal blanket and the downpipe is fully wrapped in ceramic header wrap.

    DSC3276-S.jpg DSC3275-S.jpg

    An picture of the custom oil cooler heat shield is shown below. Here you can see the oil cooler feed and return lines routing very near the (wrapped) exhaust header primaries. A stainless steel heat shield was fabricated with an air gap to the exhaust and also has a shape to keeps these lines routed smoothly away. These two lines have since been wrapped in thermal sleeving and a reflective thermal barrier film was applied to the heat shield on the top side. Next to that picture is a shot of the stock clutch salve cylinder. The OEM "Clutch Delay Valve" (CDV) has been removed and the clutter of 3 OEM hard and soft lines has been replaced by a single Teflon-lined, stainless braided, BrakeQuip hydraulic hose, custom made at Pirtek Plano South. This new clutch line will be also be wrapped in thermal sleeving, as this line was thought to be the culprit behind the mysteriously missing clutch actuation about 2/3rds of the way up the mountain in Brianne's 2011 PPIHC run. No clutch = no smooth shifts. Hopefully this thermal management will prevent this issue from cropping up this time up the mountain.

    DSC3122-S.jpg DSC3125-S.jpg

    Other Fab and Prep Work

    To work with various thickness wheel spacers, some extra long ARP wheel studs were installed in both the front and rear hubs. With the rear hubs removed it was obvious the bearings were shot, so those were pressed out and new bearings went back in. When the Subaru arrived here it had a full-sized battery (35+ pounds) in the OEM location, way up front. A new Odyssey AGM style battery was picked, a new mount fabricated in aluminum, and it was all bolted to the trunk floor way in the back, for better weight balance. All new 0-gauge cables were made with swedged ends. All new wiring was made to the new fuel pumps, with isolation relays, as well.

    DSC3091-S.jpg DSC3138-S.jpg

    Another custom fabricated part shown before is now painted red - the strut tower brace and oil cooler mount. The engine oil and trans/diff fluid coolers are shown mounted and fully plumbed. This was one of the most well received parts of the build so far, which was surprising. It is pretty simple fabrication work, but everyone that's seen it first hand loves it. No, this won't be some production piece we make to sell, as it is completely custom made set-up specific to: this turbo, this intercooler, and these two oil coolers.

    DSC3149-S.jpg DSC3129-S.jpg

    One little area to fix we ran into was a cut apart lower radiator core support, done by a previous owner way back down the line. This is a structural piece that was an easy fix for Ryan. He cleaned off the paint, stitch-welded the cut metal back together and then patched a larger opening with a bent piece of steel sheet. Once it was all tied back together it was painted black and the FMIC was then put back into place in front of it.

    DSC3133-S.jpg DSC3135-S.jpg

    After many more late nights and long hours the car was finally plumbed up, the fender flares were far enough along to fit the 18x10" wheels, and the wiring was done. It was time to fire it up... VROOM! It ran, but had a miss, but nothing leaked a drop - which was a minor miracle considering the complete plumbing replacement done by Pirtek. Our guys quickly diagnosed a misfire on both rear cylinders, but it was intermittent and we couldn't see what we had done wrong. Turns out it was a fuel injector harness that was pinched on both rear cylinders when we switched to the billet fuel rails. There's more to it, but long story short, AWD Tuning figured it out and got the motor running smoothly.

    The car was loaded onto the trailer at Vorshlag Friday afternoon at 4:30 pm. JasonM left here to tow the car across town to AWD Tuning and promptly had two blowouts on a borrowed trailer. One of our shop guys took him a spare, tools and jack and they limped the trailer on 3 tires to a local Discount Tire store, purchased 2 new trailer tires, and was outta there by 6 pm. The car finally made it to AWD Tuning on Friday night...

    14 Pieces of Flare

    After the tuning professionals at AWD Tuning did their magic, making huge improvements in power and engine smoothness, we got the car back to Vorshlag late Monday night. Tuesday morning we all came in and got back to work, with fender welding underway by 9:10 am. Its been late nights since then but much progress has been made.

    DSC3077-S.jpg DSC3085-S.jpg

    Here's where we are at the moment on the rear flares. Most of this is Ryan's handiwork, with some assistance from Cameron on grinding, cutting patch panels, and holding things in place while welding.

    DSC3092-S.jpg DSC3116-S.jpg

    DSC3078-S.jpg DSC3113-S.jpg

    Below you can see the under-fender patch work that is involved with any rear fender flare job that alters the unibody tub for wide tire clearance at full bump. Cutting, patching, welding, hammering, seam sealing, painting. Not glorious work anyone will ever see. Using the patches Ryan and Cameron had made I tack welded these in place this morning before the gang arrived. MIG welding is fine for these panels (great, since I personally can't TIG weld), which have a bit of an overlap to the chassis panels (for strength and ease of welding). We'll grind the welds down a bit and smear every line with seam sealer, than paint it.

    DSC3273-S.jpg DSC3274-S.jpg

    The inspiration for these box flares came from our little E30, which sold last weekend. Left rear fender work shown at its first stages below also.

    DSC3140-S.jpg DSC3174-S.jpg

    Here's more of Ryan's work, showing how he tied up the rear of the fender sections back into the body. Cameron with the assist.

    DSC3287-S.jpg DSC3288-S.jpg

    Still have a lot of grinding to do, plus my least favorite - body filler and paint. Gonna come in early tomorrow and get crackin!

    Suspension Updates

    As I mentioned before, AST USA really hooked up Brianne on a killer set of inverted struts. The fronts are regular off-the-shelf 5100 single adjustables with 45mm chrome shafts. The rears are actually called 6100s, which are 50mm shaft inverted rally struts. Normally for a car being used in an event like this we would custom order a complete set of 6100s, but with a very short time frame we were happy to get this set-up on the car. After a call was made to Swift Springs they stepped up with a nice sponsorship and 20 springs are on hand for testing and set-up before race day.

    DSC3184-S.jpg DSC3187-S.jpg

    With the dual-spring set-up on the AST strut below you can see how much travel is available on the car now. This is crucial for tarmac rally events like this. Running a single short spring, like you would in a road race setup, won't allow the extended strut to have any spring tension in droop. Also shown below are 8 fresh Hoosier A6s from Hoosier Tire, another sponsor of Brianne. These will be used for qualifying and on race day mounted to two sets of Vorshlag/D-Force 18x10" wheels (a whole new pallet of these arrived at the shop today).

    DSC3251DSC3251-S.jpg DSC3282-S.jpg

    We still need to install the Kartboy end links from TurnInConcepts on the front swaybar, corner balance and align the car.

    Exterior Work

    After fighting with the existing sanding tools I already owned (DA sander, inline sander, and a couple of small sanding blocks) I finally broke down and bought a complete set of Dura-Block flexible sanding blocks. These 7 pieces gave me round, flat, and other shapes of dense foam sanding blocks of several lengths to use to get better results when shaping the body filler and finish putty on long flat surfaces, inside curves, and other odd shapes on the front fenders. After a some early mornings of making a mess of the shop before the crew arrived I got the front fenders good enough for some high build primer, and moved on. Rear fenders are tomorrow...

    DSC3094-S.jpg DSC3132-S.jpg

    The factory titanium silver whatever color paint doesn't photograph well, and we were making a mess of the finish with all of our box flare efforts. Since we're out of time for proper paint it was decided by the crew chief and driver to wrap the car in basic red vinyl and put white graphics over that. After a little experimentation it seems to be working, with a wet layup, stretching and heat gun use. The color was inspired by our 2011 Mustang GT, shown here.

    DSC3172-S.jpg DSC3290-S.jpg

    That's all I've got for now. If I keep writing I'll keep taking pictures of work happening right now and this will never get posted.

    Until next time...

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    04 Aug 2012 10:22 PM

    Project Update for Aug 4, 2012: Final thrash underway for the trip out to Colorado Springs that leaves tomorrow. The last few days have been a blur. I just worked a 25 hour stint and got back to the shop after a few hours sleep. Please forgive spelling/grammar/logic errors in this post, as we're all having trouble remembering what happened. Final hours of prep are here!

    More Exterior Prep

    I think Ryan had finished metal work on the right rear fender where we left off. From there Ryan finished up welding the left rear flare, Big Paul helped with some metal grinding, and I got to work on the bodywork on the right rear. This is the one with the fuel door and was extra fun. I started on this at 7 am Friday morning, knocked that out, we went to the test (more on that below), came back and I worked through the night on that plus the left rear. I suck at body work - we don't normally do this work - but it's done and they are wrapping the car now.

    DSC4685DSC4685-S.jpg DSC4714DSC4714-S.jpg

    Don't ever try to make exaggerated OEM steel flares like this on a Subaru. Just cut for the tire clearance you need, buy composite flares and slap them on. This was an epic amount of work - like 150 man hours or more. Not what you do for race car flares.

    DSC3323-S.jpg DSC3351-S.jpg

    Matt has been working on the hood, hood scoop and bumper cover wrapping for the last 2+ days. Amy and Jason are jumping in now to help cover the rest of the car now. Lots of work to do.

    DSC3346-S.jpg DSC3340-S.jpg

    I left the shop at midnight on Thursday but Matt and Ryan were still going strong. We had talked... talked about replacing the OEM rear wing but there just didn't seem like we had time left to get it on, do some testing, and make the matching front splitter. Well I made it back into the shop at 7 am on Friday and saw this monster bolted to the trunk. They took the GTC-300 carbon wing from my Mustang, mounts and uprights as well, and made it fit Brianne's Subaru. Fit perfectly, bolts securely to the full steel trunk lid, and the forces go right into the rear fenders/chassis. Massively strong uprights - .250" thick 6061-T6 plates. Trust me - we've heard all of the suggestions on Facebook already: No, it doesn't need cables or guy wires or more structure. The same wing worked fine on my Mustang just bolted to the trunk, going into Turn 1 at 150 mph at Texas World Speedway, and it worked on the Subaru in testing at 130+ yesterday. No shimmy, no shake, and it isn't falling off.

    DSC3313-S.jpg DSC3317-S.jpg

    More Race Prep

    DSC3301-S.jpg DSC3300-S.jpg

    Thermal wrap is still going on in many places. The ECU is still in the factory location, under a metal "shoe rest" in the passenger foot well. To keep heat from the ECU and the navigator's feet we've covered this section in thermal insulating blanket, sealed to the floor. The downpipe is fully wrapped, too. No more melted shoe soles.

    DSC3341-S.jpg DSC3342-S.jpg

    Making it up the mountain without overheating is difficult. This will be the single biggest failure point for new and old teams alike. I suspect it will take out 50% of first time Pikes Peak teams. One trick for combating the heat of the thin atmosphere going up towards 14,000 feet is spraying water on everything, the whole way up. About a mile into the race co-driver Jeremy Rowland will flip a switch and turn on the pumps, and the two spray bars will mist water in front of the massive Perrin front mount intercooler and the CX Racing aluminum radiator. They tested the flow rate of the pump and found a water reservoir that slightly exceeds the amounted needed for the ~11 minute run. It is mounted securely with straps that go into anchors in the chassis.

    DSC3345-S.jpg DSC3306-S.jpg

    On Wednesday I took a 4x8' sheet of .063" aluminum to Janco Fabrications and borrowed owner Kurt's sheet metal brake and sheer. Took the templates Ryan made and cut out a rear bulkhead and top shelf, separating the passenger compartment from the trunk, which has the fuel filler neck, fuel tank opening, and fuel pumps. Mike from Pirtek helped me cut, mark, drill, trim, and install both pieces. We must have had them in and out of the car 20 times - you know how it goes. Both pieces bolt in to existing holes and they bolt together. Aluminum tape will seal the edges and rubber will surround the fuel lines and battery cables shown passing through.

    DSC3304-S.jpg DSC3307-S.jpg

    I kind of screwed up when I bent the top piece, so instead of taking the sheet back to Kurt's and making the bend angle again, we made a home made "sheet metal brake" with our 1200 pound fab table, some angle iron, and a crap load of clamps. It was pretty ghetto but we got the bend right. When its midnight you do what you gotta do.

    DSC3312-S.jpg DSC3322-S.jpg

    Somewhere in there our fab man Ryan made a new exhaust from after the downpipe, during the wee hours of the same night he mounted the rear wing. Its made from the normal 16 ga 304L stainless, 3" mandrel bends and strait pipe we keep in stock for just such occasions (we also stock 2.5" and 2.75" bends, V-bands, and poly hanger mounts). No muffler, as per AWD Tuning's request - makes more power, and makes more bark. It is loud but it sounds like a proper race car!

    DSC3299-S.jpg DSC3296-S.jpg

    Friday... no Thursday morning? I worked on the inner fender panel structure welding, covering the big gaps made when the rear fenders were sectioned and mounted outboard 2". These make the fenders rigid once more and keep water and crap out of the trunk and passenger compartment. Had to do the rear doors also. Seam sealer normally goes over these joints and it all gets painted (but not today - out of time!) The AST 5100/6100 suspension was on and ride heights were tweaked Friday morning.

    DSC3308-S.jpg JPGDSC5150-copy-S.jpg

    The car was corner balanced, race aligned, and fluids were topped off. With driver and co-driver it is sitting at 57% front bias - not bad for a AWD car with the motor way out in front like this. The rear diff was removed Wednesday night, taken to AWD Tuning, and their techs installed a new OS Giken rear differential that was another sponsored part for Brianne's race effort. Ryan reinstalled the diff, Motul synthetic gear lube went in, Amsoil went into the motor, and it was fired up once more.

    JPGDSC5190-copy-S.jpg DSC3328-S.jpg

    Quick Track Test

    With the rear bumper & brake lights still removed and barely started rear bodywork, we loaded up the Subaru into the Vorshlag trailer and headed out to the Mineral Ring, a 60+ acre asphalt site we rented west of Ft. Worth, about 2 hours from our shop (2.5 hours with some construction traffic). Not ideal, but Eagles Canyon Raceway was down for repairs and the folks at MSR were none too friendly with my requests to rent some track time that day. We made the trek to Mineral Wells, unloaded the car and set-up a crude course layout (approx 1.5 miles long), sort of following something the drift crowd had run there recently. Tried to test elements that Brianne might see on the mountain: medium speed corners, some low speed stuff, and one faster straight/turn to check the rear aero.

    JPGDSC3326-S.jpg smallblurJPG-Crop-DSC3337-copy-S.jpg

    Ryan and (Brianne's crew chief) JasonM checked all of the systems and I drove the car. This was because Brianne couldn't make it on Friday for this systems check, I fit the seat width and location set-up for Brianne, and had tested in 500+ whp race cars at this same test site. We had one set of practice tires (from my DSP BMW at the 2010 SCCA Solo Nationals) and another set of 285 A6s mounted to 2nd set of Vorshlag/D-Force 18x10 wheels (one of her two sets of race/quali tires). The testing itself was brief but productive: two sets of recon laps to get everything warmed up, then two sets of hot laps. The guys used an IR gun to check temperatures then pyro'd the tires to see how our pressures and camber settings looked.

    Video of session 1 (1 lap): Link
    Video of session 2 (4 laps): Link

    First video is short, the 2nd is about 4 laps and a little more exciting. The site was DIRTY and we didn't have the time to clean a good line, so we made do with what a course we could set up quickly. I don't pretend to have half the driving talent of Brianne, but maybe enough to at least get a feel for the car. The car felt great: it makes PLENTY of power (thanks to AWD Tuning), grip was excellent, the R4 Porterfield pads bedded in nicely, and all systems were in the green. On my 2nd set of hot laps I ran over something and cut a tire at the end, so we wrapped up testing and loaded the car back into the trailer before the tire went completely flat. Didn't want to risk cutting a new tire on this dirty course. That's all we really wanted to do - a handling check and a short stress test of the mechanical systems and see if anything broke. Nothing did. Win.

    Grabbed some food on the way back and made it to the shop by 9, then we all worked all night. Sure, a day at a proper road course with Brianne at the wheel and the car 100% prepared would be ideal, but we always knew that with the timeline we had this wasn't likely. The crew does have a few days in Colorado (to rent PPIR or during practice on the mountain) to fine tune things a bit, but I feel like the handling is very close and everything else felt spot on.

    Last Little Bit!

    DSC3354-S.jpg DSC3353-S.jpg

    Brianne is now here and joining the crew, already hard at work. We're all going strong but they are debating some last minute additions that could help make Brianne's race effort that much faster, but it would eat into the "one day buffer" built into the transit time going from Texas to Colorado (16 hours one way). That's a day that could be used to acclimate to the high altitude in Colorado Springs, a day to deal with any transit problems on the truck trailer (which I feel is low risk, being that both are in top shape/have new tires/etc), or a day used in our shop to build more go-fast goodies into the Subaru. Some things can be finished up on site, but big things cannot.

    DSC3347-S.jpg DSC3348-S.jpg
    Decisions, decisions...

    That's all I have for now. I will post up one more update covering the last of the Vorshlag shop prep, and of course a big post after the event itself.

    Stay tuned!

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    08 Aug 2012 05:47 PM

    Project Update for August 8, 2012: The last several days have been a blur and we're just digging out of the rubble here. We were thrashing and putting in some crazy hours the last couple of weeks, fueled by energy drinks and a looming deadline. We pushed past the original departure time by only 12 hours, but it was time well spent. This thread update will show the last the pre-Colorado updates and preparations done to Brianne's car before they hauled out of Texas to go to Pikes Peak.

    Last of the Wrap + Decals

    When I posted last we had begun wrapping the car in red. We had a lot left to do, and the wrap crew went from one person, to two, to four people in quick succession. We never remembered to call Costas, who can wrap any car, but we weren't really awake enough to remember that. Matt took care of the hood scoop, trunk, rear bumper, and trimmed the door and fender vinyl for Amy and McCall. JasonM handled some other bits, and Amy + McCall wrapped a big chunk of the car too including the rear quarter panels and roof.

    DSC3373-S.jpg DSC3364-S.jpg

    Some of the panels came out great, but some of the curvy bits got a bit complicated. None of us were skilled in wrapping cars, and we were very tight on time, but I think it looks good from 20 feet at 20 mph, heh.

    DSC3368-S.jpg DSC5290-S.jpg

    Once the red landscape was laid down, Amy and JasonM applied the cut vinyl decals that Jason had designed in Illustrator. These angled stripes each have the names of the bigger ($1000+) parts sponsors. There were also decals on the front and rear bumper covers, hood, hood scoop, and even more are being applied today at Pikes Peak.

    Front Splitter & Air Dam Construction

    Once the rear wing was installed, it was obvious in high speed corners at our short Mineral Ring test that we had an aero imbalance, with significantly more rear downforce (wing) than up front (none), even with the wing trimmed all the way out. I had been pushing for us to include a front splitter since day one, with as much of a front undertray as the rules allowed. Once we decided to hold the car another 12 hours, it was splitter makin' time!

    DSC3349-S.jpg DSC3359-S.jpg

    Due to the time we had left, plus the rigors that Brianne was likely to put through the splitter, there was one material that made sense - plywood, with a tubular aluminum reinforcement structure. If we had more time maybe aluminum plate could have been used, or a carbon+aluminum composite splitter. I wasn't about to make something from sign shop material, because my "rule of thumb" is if a material can be crushed between my forefinger and thumb it doesn't belong in a splitter. Aero forces alone will tear it to shreds, and any road scrapes or rubs with FIA curbing will fold it up like paper. I've spoken up against using Alumilite and other plastic corrugated material on forums in the past, and stand by that statement. We got some grief for the

    Arrival and Tech

    Jason and Brianne led the caravan that drove through the night, along with two cars carrying support crew, and made it to Colorado Springs Monday around lunch time. They spent most of the day just acclimating to the altitude, and then went to tech with the car on Tuesday. As of now, half of the Vorshlag crew is on the mountain. The guys uploaded this picture last night, during tech and scrutineering. They had a small issue at tech that I will quote straight from the Brianne Corn Racing facebook page:

    Quote:

    Tech was odd in that our car which has had an SCCA Log book since like 2005, and was raced here last year (without issue), (but then) didn't pass tech (this year). It turns out that there were 2 incomplete welds in the (top of the) cage. I found the maintenance shop at PPIR and talked the guy into letting me loose with his welder. An hour or so later we passed tech and were out on the test course turning laps.

    Good news, in that was the only wrinkle they've had so far in Colorado. Last year they were still building the car at this point, so they are way ahead this time around. There have been a number of cars that lost motors and/or overheated at a test earlier in the week at PPIR, a small oval track with an infield road course south of Colorado Springs. Brianne and Jeremy have made some test laps in the Subaru are very happy with it so far; they are making some slight tuning tweaks and are ready to attack the mountain.

    VORSHLAGJPGcroppedDSC6227-copy-S.jpg pikespeak-sti-S.jpg

    The major sponsors are listed in the side stripes, such as Vorshlag, AWDTuning, Pirtek Plano South, AST-USA, Ignite, Swift and Amsoil. There's still a few more decals to go on, but it's 99.5% done and it is race ready. According to our folks at tech, the car was very well received by fans and competitors alike. People were constantly taking pictures of it, like this guy above.

    Practice on the Mountain Wednesday

    The team spent the morning at the very top of Pikes Peak (all the way up to 14K feet) doing some shakedown practice runs, shown below.

    JPGcroppedDSC6684-copy-S.jpg JPG3croppedDSC6696-copy-S.jpg

    After these practice runs they adjusted camber (it had "way too much") and AWD Tuning was adjusting the tune. The crew is heading to PPIR with the car right now for some additional handling tweaks and more testing tonight. As I write this Brianne and Jeremy are driving up the mountain in a street car for some recon runs, then will blast down and meet the crew at PPIR to drive the STi. Tomorrow the rest of Vorshlag crew flies out of Dallas to Colorado Springs and we will all be there over the weekend (our shop will be closed Friday) to support her race efforts. We will post up more pictures on Facebook during the race weekend and will make a mega-post after we get back from Colorado next week. If you want to see more during the event go to the Brianne Corn Racing and Vorshlag facebook pages.

    Thanks,

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    16 Aug 2012 05:24 PM

    Project Update for August 16, 2012: As in my other project race car forum threads, I would normally start off with a post-race report right about now. But not this time. The 90th running of the PPIHC was so out of control that I have talk about the event, the crashes, and the mistakes made by the race organizers first. I apologize in advance to the readers, as this is not all roses and snowflakes. I will follow up with a real post-race report from the perspective of Vorshlag, Brianne's car, our support crew, practice, qualifying, the race, and more. In short: Brianne finished 5th out of 23 in her class, starting after a long (90+ minute) crash delay, which put her running in the rain and hail. Not complaining about the conditions - we know that if she would have qualified better she would have run earlier, in the dry conditions like the first five cars in her class did. Again, I will expand more on Brianne's story in my next post.

    I started writing about my thoughts of the event itself on Monday (the day after the race), but it took me until Thursday (today) to really get my thoughts together. All of our crew has finally gotten back and more facts are available now, so I am glad I waited. Jeremy Foley's crash video has 2+ million hits on YouTube in two days, with Paul Dallenbach's videos close behind. So many people have seen the multiple crash pictures and videos and want to know more, I have had dozens of people calling and texting me for "what happened?!", so here is my version of events. This is as seen through my own eyes, without rose colored glasses or my normal niceties. These are not the views of the rest of our crew, of the driver or co-driver from Brianne Corn Racing, or anyone else. Just my views, from my perspective.

    JPGmap-copy-M.jpg

    Who am I to talk bad about the ninety year old, revered PPIHC event? I admit that I haven't even been to a Pikes Peak competition event before this one. However, in the past 24 years of my own racing experiences I have seen a good number of club and professional level races in several countries. From endurance events, circle track, sprint races, F1, NASCAR, drag races, road races, open road races, autocrosses, HPDEs, time trials, and more. It doesn't take too much experience to understand when things are FUBAR, like the 90th running of the PPIHC was.

    From my point of view there was a lot of weirdness going on. I saw safety issues and race organizer decisions that would be unacceptable at any other race I've ever entered or attended, and I feel that I have to share them here. After talking to dozens of people at the event who said they followed our build thread for this car (which is on eight forums now), I don't want somebody to read a filtered version of the race from me, then think that Pikes Peak might be safer or more organized than it was, so I'm not holding anything back. The big problems at this event all stemmed from a few key mistakes made by the race organizers, which anyone involved with the event already know about.

    Read This Bill Caswell Article: http://jalopnik.com/5934725/how-pikes-peak-became-the-most-dangerous-place-ive-ever-raced

    Please stop reading here for a moment and read


    EVOFRONT-S.jpg
    7791396748045f68104co-S.jpg
    Click to enlarge

    zBOix-S.jpg y0ouc-S.jpg
    At left you can see the main hoop buckled and B-pillar crushed inboard. Right: The A-pillar bar failed completely

    As you can see, there were substantial cage structure failures in several key places. Places that would otherwise be reinforced in an FIA style rally cage. First, look at where the A-pillar on the passenger side was crushed and deflected downwards over a foot. Second, the main hoop was not tied to the car's B-pillar and both deflected (in different directions) over a foot each. The roof had one diagonal (as it was made for one occupant) and left the passenger's helmet very unprotected in a rollover (and seeing the damage to Yuri's helmet, it is obvious why).

    EIhTP-S.jpg Jy7Lp-S.jpg
    Seat pictures. Click to enlarge

    Now let's look at the passenger seat, which was bolted to the sheet metal floor and not tied to the cage at all. This is done in road race cages (but probably isn't a great idea there). When the B-pillar deflected inboard a foot, it knocked the seat and ripped it from the sheet metal floor, allowing Yuri to flop around in there. There was no window net to keep his arms inside the cabin, and that allowed his arm and hand to come completely out of the cage structure during the 10+ roll overs. His head came out of the car as well - it's visible in some of the high resolution pictures.

    IMG20120813143306-S.jpg IMG20120813143323-S.jpg
    Helmet pictures - click to enlarge

    The cage in the Mitsubishi Evo above buckled in many places, which would have been avoided if it had the an FIA spec'd cage - which has extra bars missing from lighter road racing cages. Some experienced PPIHC competitors pointed out the under-built cages to many of the new teams, including the Evo above that pancaked the A and B pillar bars, before the event (see comments by "DaveK" (Dave Kern, who finished 2nd behind Millen at the 2012 event) in this thread). Yes, this car had a huge off and smashed down a mountain against a bunch of big boulders, which you can see in the video, but it could have been better protected.

    The cage experts on other forums are already over-analyzing the various failures, which need to happen. Foley was lucky to not sustain any injuries after this horrible crash. His co-driver Yuri was not so lucky, sustaining a dislocated shoulder and head trauma when his helmet cracked along four axis. His injuries were compounded by the obvious cage buckling and seat mounting failure (it ripped off the sheet metal floor). They life flighted Yuri off the mountain because of the very visible helmet damage. Looking at the passenger seat and cage area, it's a miracle he is not dead. That was a horrendous crash and apparently not uncommon for Pikes Peak, from what I hear. What would have made this crash safer? An FIA rally spec'd cage. I hope the organizers see this wreckage and make some much needed rules changes for participants safety.

    The problem is not with the cage builder, it is with the origination of the cars and the PPIHC cage rules. Cars entering the Time Attack class at the PPIHC come from four main race groups: converted Rally cars, converted Time Trial cars, converted Club Level Road Race W2W cars, and converted Drift cars. These four racing venues have very different safety requirements and substantially different cage requirements. Rally has the most over-built cages, Time Trial/Club Racing W2W cages are in the middle, and drift cars (that might hit a water barrier at 20 mph) have the least strong cage requirements. The problem is, Hill Climbs like Pikes Peak see crashes that are nearly identical to Rally, but PPIHC doesn't require Rally style cages (that include A-pillar "FIA" bars, double diagonals in the roof, B-pillar integration with the main hoop, and more).

    Should the competitors rely on the minimum cage standards set by a racing organization? Obviously not. But did anyone have an "illegal" cage for this event? I really don't think so. It was unfortunate for EvoD that their car crashed, as now everyone can analyze the roll cage failures and point out improvements. Again, they built a good road race cage, none of the welds tore, but it was not a rally or hill climb cage. I sincerely hope they take this criticism well, learn from this, and if they come back to another hill climb they bring a car with a rally-worthy cage. I hope the race organizers learn from this and require FIA legal rally cages for all cars entered in their extremely dangerous hill climb event. Their driver's will be safer for it.

    After seeing this crash, Brianne's crew chief JasonM isn't happy with the cage in Brianne's car - he wants to add the front FIA bars to the A-pillar and a second roof diagonal, plus seat mounting tied into the cage itself. I personally have changed my own minimum standards for cages after seeing this - I used to be all about "the bare minimum cage" for weight savings, but not anymore. So at least there is one good thing from this: people are going to improve their cars after seeing this.

    (continued below)

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    16 Aug 2012 05:24 PM

    (continued from above)

    DSC0699-S.jpg rhys-millen-incar-S.jpg
    Click to enlarge

    The cage in Millen's drift car, shown above. Those skinny bars are 1" tubes, the "big" ones are 1.5". This car had one of the weakest cages in a professionally built car I've ever seen - it wouldn't pass a NASA or SCCA tech inspection for a club level race, but it still met the minimum requirements for PPIHC (which are based on Drift cage rules). I crawled all over this car during Friday practice looking at the cage, but of course didn't have my camera. The tubing sizes and layout were staggering to me - I wish I could share that here, now. It uses 1.5" diameter tubing for the main structures and 1" tubing for large parts of the car. At PPIHC tech, this car weighed 2999 lbs with him in it. Sure, this minimalist cage is good enough for doing the driftoro thing in a parking lot, but if he had gone tumbling down the mountain or into the trees, Rhys would be one of the least protected driver's on the mountain. Well, maybe the 2nd least protected...

    DSC0670-S.jpg DSC0668-S.jpg
    Click to enlarge

    I was scrolling through Matt's pictures from FanFest, trying to find better pics of Millen's cage and stumbled upon this gem. This is another random competitor in Time Attack Class, above and below. This 5th gen Camaro had a supercharged engine, some blingy 20" wheels and a wrap, but was almost a totally stock street car. Remember: This car passed PIHC tech, checked off as "safe" to drive up the most dangerous hill climb in the world. This is the 2nd year it has entered and run PPIHC. What is wrong with this picture????

    That wiggle in the down bar is bad enough, as is the bolt-in nature of the cage, but the front down bar doesn't even go to the floor! It also has little dune buggy seats. The PPIHC tech folks looked at this, two years in a row, and said, yes, this cage is good enough to withstand a potential crash like the EvoD car encountered. Riiiiiiight....

    Even seasoned PPIHC veterans suffered big crashes, like Paul Dallenbach's huge off. What was noteworthy here was how close this car, traveling 130 mph off course, came to a pack of spectators standing on the outside of this turn. When I saw this on the video it made me think: "Was this a race in Mexico or the USA?!" How they get event insurance coverage is a complete mystery. Allowing people to stand on the outside of turns was ludicrous, and it stopped right after some of the key crashes happened that day - I know this first hand, because I had to move from where I was taking pictures near the start line. I don't care that it "has worked for 90 years", allowing spectators to wander willy-nilly around the race course under green flag conditions obviously wasn't working then. From what we heard, a little girl was injured after the boulder she was standing on top of was hit by a car, but she was released from the hospital the next day. Stuff happens here that doesn't happen elsewhere.

    dallenbach-S.jpg dallenbach-crash-S.jpg
    Dallenbach's crash was pretty massive. 1400 whp, going 130 mph in 5th gear, throttle stuck wide open, off into the trees, barely missing spectators

    As many have reported there were too many crashes at this event; I've heard that this event had more than ever before. After driving up and down the mountain a couple of times, once in the rain, I can see why. Personally, I now have zero aspirations to ever drive this course in anger. You have to be a little nuts to race up this mountain. ZERO room for error - you go off, you are probably going to go tumbling down the mountain or blasting through the trees like Dallenbach.

    While I have respect for anyone that races at Pikes Peak... I still think they are all bat shit crazy. Nice folks, but just a bit nuts. :) This event was by far the most dangerous thing I've ever seen. As harsh as I have been in my critique here, I do respect hill climbs, as this sport involves the short term intensity of autocross with the biggest dangers in all of motorsports, rally. It is a unique type of event and Pikes Peak is unique among hill climbs. Yes, mistakes were made, but they can be fixed. The number one issue still lies in the number of entrants they allowed to run the course on race day. 170 drivers (the entire amount left of the 211 that signed up) took to the mountain, which was about 50% too many. This was after qualifying had whittled the field down to 100 entrants. At the last minute the event organizers caved to political pressure from many entrants (possibly rightfully so) and changed their stance Saturday morning at 8am to allow all entrants to race, two hours before a protest hearing. This allowed too many entrants to fit in the allotted race period and allowed some entrants that honestly were not qualified to race on this mountain. One of the Unlimited class drivers had never done any sort of competition driving... not even an autocross. Nothing. Crashed twice in practice, banged up his co-driver a (edited), and was still allowed to race. These things don't need to happen.

    In years past, the attendance from cars at this event had dropped so low that the organizers were bending over backwards to allow just about anything, creating new classes to attract Drift racers, rally racers, and more. They adopted their existing safety regulations, to try to entice them to come without having to modify their cars. Last year they had about 70 racers make it to race day. This year they had 170 racers and ran very late, with many racers running in the predictably bad late afternoon weather, causing more crashes and delays. Now that the mountain is fully paved and they have an over abundance of entrants, these safety concessions need to be readdressed. I know of several racers that are already sending letters to the PPIHC board to ask them to tighten up safety requirements, reinstate vetting of some kind to try to reduce the number of inexperienced racers (and car builders), and to make the event safer for both racers and spectators.

    Come Watch before you Race

    One thing that anyone contemplating running a PPIHC event should do is go and work crew for a team one year. If that is the only thing you take away from this post, then at least it was worth writing. Coming from a time trial, road racing or other W2W background, some things you see here will seem foreign, disorganized and very different to you - as they do me. But if you talk to enough experienced competitors you will likely get an understanding of why things are done differently, and how the minimum rules aren't always the best way to do things. I'm still processing all of the data I learned at this event, almost a week later, and at least I know more than I did before going to this event.

    This event has been run for 90 years so the organizers might not be amiable to change anything. If the safety regulations do not get a big update next year, future PPIHC entrants will have a choice - do they built super light cars & cages and skimp on safety, just run the safety regulations from whatever racing series they are coming from, or do they follow rally safety regulations and build a car with a proper cage/nets/seats that can survive a crash on this mountain? I hope, after reading this and seeing these pictures, they give it a second thought.

    I did meet a lot of really dedicated racers, great car builders, and saw lots of insanely cool machinery - which I will share and explore in a future post. Between me, Matt, and Brandon, we have tons of pictures that we will likely be cropping for days. Brianne's car arrived back at our shop early Tuesday morning so hopefully we can have the in-car video up later this week. Again, I am barely scratching the surface of the team's race experiences at PPIHC 2012. I just wanted to vent this insanity out first, then go back and talk about her car and experiences.

    Thanks for reading.

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    16 Aug 2012 05:25 PM

    This review of the event is even more harsh than my own, coming from Brianne's crew chief, JasonM. Jason works at Vorshlag but his views are his own.

    Jason M wrote:

    Here's my take on what was right and wrong with this year's event:

    Time for a Pikes Peak update. – Warning, this is my opinion and not from my driver or employer. I saw issues with the PPIHC organization, the drivers, and the on-site and virtual spectators. This was only my fourth year on the Peak, and many things I write about, particularly the past, were told to me by other, older competitors.

    Short story, our run was in less than ideal conditions and did not end in a podium finish, but we took responsibility for our own safety before the PPIHC took responsibility for the competitors that ran after us.

    Long story, this year will go down in recent Pikes Peak history as one of the most controversial years, the most dangerous years, and the most disappointing years. In the years before paving started on the Pikes Peak Highway (yes, it’s ironically called a highway), the race accepted applicants, vetted them to make sure only qualified, experienced drivers fielding decent equipment were invited to participate. Then, based on qualifying times, the slower drivers were eliminated so that only the fastest, best prepared teams participated in the limited time available on race day.

    During the transition to pavement attendance fell and the event seemed to accept most applicants with little vetting and did not eliminate any competitors between practice and race days.

    With the paving done I expected a huge number of competitor applicants (which happened) and a return to vetting and eliminating drivers without appropriate experience (which did not happen). This caused issue #1, lots of drivers with no rally or hillclimb experience and little time trial or roadracing experience. Some with no more than some autocross experience. And novices with little competition driving experience were allowed to enter a car in the Unlimited class.

    Accepting all these entries swelled the competitor list and it was obvious that not all of them would be able to run on race day. Competitors quickly started asking what sort of solution the PPIHC board was planning and were told the Qualifying rule from the rulebook would be put into play. The rulebook actually has a number of methods for including and excluding competitors and many of the novice competitors and spectators whined about the fairness or politics surrounding these methods. Here’s a few that I found in a quick skim:

    PPIHC Rules wrote:

    Section II.
    C. Any competitor who, in the opinion of the Stewards, shows insufficient skills, judgment, or ability may be disqualified from further participation in the event.

    D. The Director of Competition shall have the right to require Competitors to demonstrate their ability to drive competitively on the Pikes Peak Race Course before they shall be permitted to practice or qualify.

    Section III Part VII
    7.2. Filing Entries-PPIHC will invite and receive entries only from selected competitors. PPIHC can set the number of entries in all divisions and classes, before the entry closing date.

    8.2.4 Any race vehicle which does not make a qualification attempt may be added to the race program under the Race Director's option, subject to the approval of the Director of Competition and payment of all applicable fees.

    8.2.5 The number of qualifiers for any division shall be established by the PPIHC. The PPIHC reserves the right to disqualify any competitor who qualifies outside a percentage (115%) of the fastest time. For spacing purposes the Director of Competition will notify all Stewards and Officials of those vehicles that fall outside of the 115% rule.

    8.2.6 The race competitors shall be the stipulated number of fastest qualifiers, unless one or more of them fail to, or are not permitted to, line up for the race, in which case the Stewards may permit the next fastest qualifiers to complete the field. The PPIHC shall be allowed to add to the field at its discretion.

    And this is all topped by:

    Section III, Part I,

    1.4. PPAHCEM Option-The PPAHCEM/PPIHC has the right to make and construe rules and to render decisions concerning them; to grant, refuse or withdraw licenses, sanctions and approvals; to assign and cancel dates for competitions; to appoint and rescind the appointment of officials; to impose and remove penalties for violation of its rules; to establish standards of eligibility for participation in competitions; to establish rules for its own procedures; and to do any and all things which, in its judgment, are consistent with the enhancement of the Pikes Peak International Hill Climb.

    1.6 Acceptance of Rules-Every person who participates in the event shall be deemed to be acquainted with the rules and shall agree to the acceptance of these rules as published, and as amended or supplemented, and agrees to be bound by same.

    Jason M wrote:

    In addition to these rules, the competitors were told at the initial driver’s meeting that any competitor causing two red flags during practice or qualifying, or any competitor driving off the course on purpose (ditch hooking) would be disqualified from competition.

    Well, that should thin out the ranks.

    Instead, what happened was that the PPIHC followed their own rules with two exceptions. They changed the 115% of the fastest driver to 120% of the second fastest driver (seems acceptable to me) and they included a few high profile competitors under the guise of “promoter’s option” (see Section II 8.2.4 and Section III 1.4). The only reason I can see for competitors being surprised or upset about this was that the whole qualification requirements were not clearly stated before Tech Inspection was over (as required in the rulebook) or that they did not make the cut. This caused some anguish among rookie drivers who started a negative PR campaign against the PPIHC during Fan Fest. The PPIHC organization quickly caved to their pressure and issued a bulletin the next morning stating that all competitors would be allowed to participate in the Hill Climb, including those that wrecked twice, those that ditch hooked on course and those that were so slow they should be entered in the exhibition class.

    So now we have unvetted competitors entered. We have far too many competitors entered. And we have inexperienced and unprepared competitors entered.

    As an aside, we also have seven cars entered in the Electric class.

    Back up to the actual practice days. The PPIHC organization tried a few things to make things smoother during practice days. Runs were allowed from dawn to 9:30, which is 30 minutes longer than 2010. But instead of allowing competitors to go to the start line whenever they were able and then halting the runs so competitors could return to the paddock when the line was idle like in past years, they broke up the runs by classes and practice runs could only be competed when your class was running. I’d estimate that cost us two runs in the top section, two in the middle and one at the lower qualifying section. In my eyes that was one experiment that failed. Bill Caswell has written on Japolink about the safety of the event and the lack of practice runs. This is one thing we agree on. The lack of practice and qualifying runs due to the huge number of competitors and the mico-organization of the runs damaged the competition of race day.

    Something else they tried with success (in my opinion) was that the competition vehicles had to be in the pits by 6:00 PM on Saturday before the event. This eliminated the hours of getting competitors situated in their pit spaces on the morning of the event. Good call! Though we found another car in our pit space and had to have it moved, it was not really clear where our pit space started and ended, and we found our pit space boxed in a few times. Luckily our fellow racers are mostly cooperative.

    On to Race Day.

    Frankly, worked just like most PPIHC race days. Semi organized chaos. But that was expected. Competitors are expected to keep track of what group is running and when to stage in the start line. As unorganized as it seems, it always seems to work just fine and with a smaller race-day group it would work even better.

    The race day was expected to be long, which meant we WOULD see a shift in the weather at some point. With a smaller competitor field they can sometimes finish the runs before 3:00 PM and they –might- be able to get everyone done before the weather changes for the worse, but with the huge number of competitors we estimated the earliest we would run would be 2:00 PM assuming we ran before the Unlimited class and that there were no delays. Even then there were plenty of competitors that had to start behind us. But the delays started early. Competitors (new and old) had mechanical issues on course and a larger than normal number of off course events that caused red-flags and delays.

    I heard second-hand that we experienced a long delay because a fire truck was tied up observing Monster’s car after it failed on course. With the larger number of electrical cars entering it may be prudent to review the handling of electrical car fires to see if they can be made more efficient so the event can continue.

    The red flags continued through the day and I have no issues with the race-day handling of the events that caused them. Very minor delays were caused by communication issues with safety trucks and ambulances, and that might have caused longer delays, but it seemed backup methods prevented those delays from being longer. Kudos to the organization for handling so many incidents so efficiently.

    The LONG delay caused by rookie Jeremy Foley’s crash caused a few things that rankled the competitors. This was a wreck that closed the course for 90+ minutes and four competitors were red flagged and had to return to the start line for another run. Instead of returning to the end of the line per the rules they were allowed to start in front of the remainder of their division, thereby having the best possible weather conditions as the conditions were becoming worse. The long delay also caused a significant weather change to the course relative to the first four Time Attack Division competitiors, but that is a part of hillclimbs. The first four cars (the top four qualifiers) got to make their run in relatively nice conditions while the next seven ran in difficult conditions (rain, hail, sleet, cold). After two offs in the bad conditions the PPIHC organizers shortened the course mid-Division which caused some competitors to cry foul. But it was the right thing to do both for safety and to allow the remaining competitors to make a run. It would have taken too long to extract the two cars that had gone off and resume running the entire Highway. So the course was shortened to Glen Cove, below the two off-course cars and below the bad weather. The remainder of the Time Attack Division and the entire Open Wheel Division ran the shortened course.

    The event finished and I attended the most lightly attended and latest PPIHC award ceremony in four years.

    So what went wrong?

    The big issues were that the PPIHC didn’t restrict entries to competitors with experience that crosses over to hillclimbs. They did not set a maximum entry number per division or per event and choose from the applicants and they did not eliminate competitors during qualification and practice. They also had minor procedure and communication issues during the event that most likely did not change the flavor, competition results or safety of the event.

    The drivers used peer pressure, social media and threats of bad press to get the PPIHC organization to allow potentially unsuitable competitors to be admitted at multiple times during the event from the entry period, the qualification period and the time between the initial competitor list being published on Friday and the reversal email on Saturday. This has continued after the event with cries of “politics” and “unfair competition” after the event from a few bad sports.

    In addition to the handling of the event, I believe that the safety rules regarding the cages for production cars should be changed to fall in line with FIA Rally cookbook cages, FIA homologated cages or Rally America cages. The simple cages used in some of the Time Attack cars is not adequate. Only through luck have we escaped using the current cage rules.

    Some things viewed as issues that I think were the responsible thing to do:

    Shorten the course. Had that not been done the delay caused by the off course cars would have caused the Open Wheel class to not run at all. Doing it in the middle of a Division was a difficult call, but any other call would have denied some competitors a chance at any run.

    Including high-profile competitors when they qualified slower than eliminated competitors. Some competitors can whine all they want. But if their programs are attractive enough and they can generate the public buzz or be allied with the event, then they might have been included also.

    Changing the qualifications from 115% of the fastest to 120% of the second fastest. Using the first qualifier would have decimated the divisions and left very few competitors for race day. Slightly relaxing them allowed for full slate of competitors. Though the eventual elimination of qualification hurt the competition and flavor of the event on race day.

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    20 Sep 2012 03:54 PM

    Project Update for September 18, 2012: Sorry for the month long delay in writing our "post-race report" update with the details of how the actual event went down for Brianne. We've been busy with other projects, preparing for and attending/competing in the 2012 SCCA Solo National Championships, buying some cars, and more.

    Vorshlag Race Photo gallery: http://vorshlag.smugmug.com/Racing-...PPIHC2012/

    I was only at this event for a little over three days and in this post I cover the Friday practice and Sunday race day from my point of view as a spectator/sponsor/race day supporter for the Brianne Corn Racing entry at the 2012 PPIHC event. No more talking about the event, rules, crashes, or other distractions - this is what I saw that related to Brianne's event.

    2009 PPIHC Interview with Brianne Corn

    Before you read about our race write-up, you should watch the video interview linked below. I had never seen this until today and actually found it while searching for the race day video from 2012. This interview was made at Pikes Peak in 2009, when Brianne first raced a motorcycle up the mountain. Great stuff, as it let's you see the history of her racing and her passion from 2004 to 2009. She talks about the moment she knew she had to become a racing driver (an accidental mountain road drive in a rental Golf, following some caged rally cars in Italy). Her start in autocrossing, her move to land speed racing in 2007, then to an experience in the Baja 1000 (Class 3 truck), onto rally, then to Pikes Peak. Great stuff!

    http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-Kw8p265/0/S/DSC3703-S.jpg" alt="DSC3703-S.jpg" /> http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-Mj9dwVm/0/S/DSC3782-S.jpg" alt="DSC3782-S.jpg" />

    In order to avoid any of the brand new 285/30/18 Hoosier A6 tires getting a puncture while driving through the woods (paddock area) to the starting line, they left the R6s on that were used during practice. Once the car was on the paved road area at the back of the starting grid, we hand carried the A6s down with the help of Bill Caswell (1/4 mile away) and mounted them under Mike Ryan's tent, a fellow PPIHC racer who drove the crazy Freightliner (see below). These A6s were driven about 50 feet and then were pulled off...

    http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-J94LrGC/0/S/JPGSMALLRESIZEDLAYERS3CROPDSC0-S.jpg" alt="JPGSMALLRESIZEDLAYERS3CROPDSC0-S.jpg" /> http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-zb5ZNfm/0/S/DSC3837-S.jpg" alt="DSC3837-S.jpg" />

    The conditions in the hour or so before her run were terrible, with rain and hail covering most of the mountain. What is it with Brianne and hail? Much to my chagrin, the team switched to the skinny 245mm Hoosier rain tires moments before her run, right at the starting line. The team was prepared for potential bad weather and was ready for the switch. This was highly recommended by the race organizers, as the handful of competitors before her were sliding off the wet and hail covered mountain road left and right in the late afternoon. Seeing those skinny rains go on the car caused me physical PAIN, after the days of work Ryan and our crew put into making the steel wide body fenders clear the 10" wheels, but it was the only logical choice given the horrible weather conditions.

    http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-mtb2GnK/0/S/DSC3922-S.jpg" alt="DSC3922-S.jpg" /> http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-rXNJ9KV/0/S/DSC3925-S.jpg" alt="DSC3925-S.jpg" />

    Brianne and co-driver Jeremy blasted up the hill with a vengeance, rain be damned. Without windshield wipers or a defroster/heater, she couldn't see squat, but she never let up! Amazingly, she was only five seconds off in these wet conditions than she was in her 2011 AWD Time Attack class winning run, which was run under dry conditions in the same car.

    http://vorshlag.smugmug.com/Racing-...PPIHC2012/i-DvqZFhx/0/M/brianne-splash-raceday-2012-M.jpg" height="334" width="500" border="0" />
    Click the image above to watch the Race Day run in the Brianne Corn Racing Subaru STi. She ended up 5th in class with a 12:01 run in the wet.

    The time of 12:01 placed her 5th out of the original 25 entrants in the Time Attack class, with the first three in her class running in the dry hours earlier (the class was delayed several times for crashes). Oh well, can't complain - should have qualified better to run towards the front of the pack with Rhys Millen and the others. After the event, Brianne was given the "Queen of the Mountain" award (a massive custom trophy belt buckle) which was pretty cool.

    BrianneBeltBuckle-S.jpg

    Comments from Brianne about this run: "I think there were four life flights that day. One crash caused a 90 minute delay which caused us to run in the rain. In fact, it was our friends that crashed and when we left the line the rumors were flying around the start line as to the extent of their injuries. I think (co-driver) Jeremy was a little shaken up by the situation.

    The weather turned at the last minute and we were told to swap to our rain tires by the race officials. We were sitting at the line and had no opportunity to scrub them in. It was a very interesting ride and one of the best times I have had in the drivers seat in a while.

    That is until the windshield fogged up. This was also compounded by the fact that I was experiencing slightly blurred vision from an allergic reaction to something in the air below the tree line."

    That was a hairy run towards the top and she was looking out the side window and going by the pace notes and road feel for much of that last quarter of the course. Yikes!

    After our crew got back from Colorado Springs, they were all still recovering from a long week of 3 am mornings and late nights. The entire crew (both of our guys, the folks from AWD Tuning, and Brianne's other volunteers) put in one helluva effort, and Brianne had the best race car she's ever had at Pikes Peak. I'm very proud of their work and her driving, and it's a shame the weather played such a prominent role in the results for part of the Time Attack class and all of the Open Wheel and Super Stock Car classes. The weather conditions were so poor that the race organizers eventually had the racers run a shortened course that ended at Glen Cove (11,440 feet), which is about half way through the full course.

    409702488986197779394487641046-S.jpg sigDSC8149-copy-S.jpg

    What's Next?

    I don't know Brianne's plans for next year or the future of this particular car. We had planned to support this car and Brianne at the Global Time Attack this weekend at TMS, but she could not go for a number of reasons. There are no plans to race it again in 2012 and certain parts have to be removed and returned to their owners, as they were on loan. What a shame - this was a potent little package that was only driven once in anger, in the rain on skinny tires. Bummer! Who knows - she could be at Pikes Peak in it again in 2013. I hope so!

    Brianne's Subaru was recently used in a photoshoot to help promote the Cupcake Meet's Cupcakin' For Cancer car meet.


    Click the image to enlarge.

    If and when this car runs again, and if Vorshlag has anything to do with future work on this car, I will post again in this thread.

    Thanks for following our work,

    Terry @ Vorshlag
    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    22 May 2014 07:27 PM

    Project Update for May 22nd, 2014: What's up Subaru fans! Brianne's 2006 STi is back at Vorshlag for some pre-PPHIC 2014 prep. But before it arrived to our shop it was bodyworked and painted Ford Mustang Race Red by Shiloh and his gang at Heritage Paint And Body. I'll cover that and jump right into the updates we're doing and other plans Brianne and Jason have for this car for 2014.

    Image3-S.jpg JPGcropped_DSC6684%20copy-S.jpg
    Left: Brianne racing in 2011 with mixed dirt/asphalt. Right: Brianne at PPIHC in 2012 when it was 100% paved

    So you remember Brianne Corn's epic class win in 2011 when the car was still silver, had the narrow 8" wheels, factory aero, and was just driven to the edge and beyond for that win. For 2012 she let us have the car for 3 weeks when we replumbed, rewired, and race prepped many systems (with the help of Pirtek). We also widened the body in steel to fit 18x10" D-Force wheels and 285mm tires under all four corners, added a custom splitter and rear wing, added custom AST coilovers and Vorshlag front and rear camber plates, and did a million other things.

    314903_488986237779390_658641446_n-L.jpg
    The weather turned to snot on race day for Brianne in 2012 and she had to slog it up the mountain in rain, sleet and hail

    Well the weather gods did not work with Brianne and she ended up racing up the mountain that year on the skinny rain tires in a downpour, that turned to sleet then hail at the top of the mountain. She couldn't even see out of the windshield towards the top of the hill and was looking out the side window for references to find her way - to even finish in those conditions was incredible.

    _DSC5401-L.jpg

    Brianne (shown above showing off her new splitter) didn't race at PPIHC in 2013 and instead saved her pennies to put together a stronger attempt in this Subaru for 2014. She is receiving engine support and tuning by a new sponsor COBB Tuning, more help from Garrett Turbo, a new rear wing is coming (massive AJ Hartman carbon 2D wing), a new suspension has been ordered (Motion Control Suspension RR2), plus a bunch of other go-fast goodies on the wish list. Its getting serious, yall.

    The race is June 29th and we only have the car here at Vorshlag for a couple of weeks.

    Vorshlag Wide Body Work Done .... Quickly (recap)

    Time to jump back two years and see what was done to the body, by us, and why - to help explain why it was so hard to fix in 2014.

    DSC_2988-S.jpg _DSC4685_DSC4685-S.jpg

    Jump back in this thread and look at our previous posts showing the "wide-body" fender and door work done by Ryan B here at Vorshlag before the 2012 race. We were MASSIVELY rushed on that custom sheet metal work. Then the bondo work done by me, Paul and Jason was even more rushed.

    _DSC4714_DSC4714-S.jpg DSC_3066-S.jpg

    We were so far behind, in fact, that there wasn't time to paint the car. Not even a quickie Maaco job - we had only hours left, so we shot some primer on the sheet metal work we did then wrapped the whole car in red sign shop vinyl with the help of about 8 people, working through the night. Impossible deadlines sometimes lead to tough choices.

    DSC_3354-S.jpg DSC_3370-S.jpg

    So that's how we did it, in a pinch, but we are most certainly not a body shop. In our rush to get the car done we took the vinyl wrap shortcut...

    Paint and Body Done Right!

    Before we got our hands on the car it needed two weeks of paint and body miracles. After running PPIHC in 2012, this car suffered in the Texas heat. The red vinyl, which was supposed to be a temporary fix, got BAKED onto the sheet metal. Absolutely cooked. By the time the car arrived at Heritage Paint and Body in Sherman, Texas, (our preferred body/paint shop) the vinyl was not coming off. At. All.

    photo%203-S.jpg photo%204-S.jpg

    We heard from Shiloh and his crew that it took several days to remove the vinyl, and some of it had to be sanded off. They tried ever more wicked solvents and even enlisted child labor to take off strips of red vinyl that were no larger than your fingernail. Just like other "short cuts" to proper paint jobs (wraps, plastidip, etc) there are usually unintended and nasty consequences... (sorry guys!!!)

    photo%202-L.jpg

    Once their crew and kids (Shiloh and his wife have about a dozen childrens) got that old wrap material off, their bodywork team dug in and got to work smoothing out and even finishing some of the metal work that we hurriedly performed (or skipped!) to widen the body to fit over the 18x10" wheels. Then they used fiberglass filler to mold and smooth the curves of the exaggerated box flares much better than we did, and spent many days sanding and sanding. And sanding.

    photo%201%281%29-S.jpg photo%204%281%29-S.jpg

    One body mod added by Shiloh was his signature "Subaru v-mount hood vent", which you can seen the image above and left. This opening will work to create a low pressure area on top of the hood to help extract hot air from the radiator and engine compartment. As usual Heritage did an excellent job in a short amount of time on the bodywork. It almost looked too good for a race car!

    newpaint-L.jpg
    The original driver's door was kept, with all of the graphics still intact, as a souvenir for Brianne's shop

    Then they primed the car, sanded some more, and finally sprayed on Ford Race Red - the same shade as our 2011 Mustang - and the color is so bright it will knock a man down at 20 paces. Wow! It really pops! And the bodywork is smooth and looks excellent - again, too nice for a race car.

    _DSC1082-L.jpg
    Another perfectly lit, framed and artsy shot by our photographer Brandon LaJoie!

    The car was transferred down to Vorshlag and we got to work immediately. This is how it looked when it got to us, shown above.

    Initial Vorshlag Work - Splitter and FIA Bar

    We noted that a number of parts that were on the car back in 2012 were missing or removed, so we put together a punch list with crew chief Jason McDaniel, and we got to work. The badass AST inverted 500mm struts had been transfered to a rallycross car, the strut tower brace and diff/trans + oil coolers were missing, the splitter was removed and missing some parts, among other notable items. Oh well, it can all be replaced.

    The plan was to have the car for no more than a week, but there was a bit of "Scope creep" and the punch list kept getting longer, so the car stuck around as we tackled new work. right before the car arrived we lost our long time head fabricator and race mechanic Ryan B, but we got lucky and hired another experienced race tech / fabricator from a Daytona Prototype race team, Ryan H... we call him Ryan 2.0, heh! One of the first items Ryan tackled was re-attaching the splitter.

    If you look at the old pics from 2012, we had pieced together a smoother front nose using red "Race roll", which is inexpensive, flexible but tough plastic material that comes in a roll. You can find this stuff in many colors at circle track supply stores, and we picked up a roll at Smileys. Well back in 2012 there were 3 separate pieces used to fill the gap under the lower grill opening and to cover up the giant holes where the OEM foglight housings go. We were working fast and furious and I think they even had me doing some of the race roll mounting, so that meant it was less than perfect.

    _DSC1891-S.jpg _DSC1892-S.jpg

    This time around NewRyan made a template from the old mounts on the splitter as well as the existing holes in the bumper cover and managed to make a one-piece front cover that looked a lot better than the hastily applied bodywork we did two years ago Amazing how much better you can work when you have 1-2 days instead of 1-2 hours to tackle a task, heh!

    _DSC1897-S.jpg _DSC1896-S.jpg
    Left: Race roll plastic is cut and fitted. Right: The race roll plastic is riveted in place.

    Once the race roll material was mocked up, cut, trimmed and fitted Ryan ordered and then installed some 4" brake ducts into the race roll for new brake ducting. The old hoses were 3" in diameter, but as I've proven lately you can never have too much front brake cooling, so the move to 4" was made. I like the new, higher placement of the ducts, which should get nice, high pressure air and then that will be pumped inside the front brake rotors.

    _DSC1971-L.jpg

    One item on the existing cage that Jason insisted on improving (this car was purchased in 2011 with the existing and less than perfect roll cage) was the addition of "FIA" crush tubes at the arc of the A-pillar down bars. This is becomming more common on many road race cars, but has been the standard in rally racing for years.

    _DSC1932-L.jpg

    This extra tube is there to cover the laid back front "down bars" that connect the roof halo structure to the floor or frame. With the laid back windshields in modern sports cars this is not even remotely close to a 90 degree angle, and that corner of a roll cage crushes easily in a rollover, especially a "pancake" type impact. Adding this additional bar adds considerable "column strength" to the cage structure and makes the set-up safer. These do tend to make ingress/egress a little harder, but this car still has functional doors, which - when opened - still allows for a large opening for the driver to pass through.

    _DSC1935-L.jpg

    These bars were added to both sides, even though PPIHC no longer allows co-drivers. This car will often have a person in the 2nd seat, for test and track events outside of Pikes Peak, so it was smart to make the cage symmetrical. Ryan used specialty software to cope the ends of the tubes perfectly, the first time, and the fit of the tubes at each joint was freakishly tight. You couldn't slide a piece of paper between the tubes when they were mocked up, so the final welded tubes will be strong as can be. The tubing used was 1-3/4" x .100" wall DOM, and for these "optional bars" you can use anything you want, but he went ahead and used tubing thicker than minimum requirements.

    _DSC1960-L.jpg

    Those tubes were welded up and then primed then painted black. The rest of the cage was painted long ago in silver, but Brianne requested that the bars in her line of sight be painted black.

    Fuel Cell Work

    The class Brianne is racing in this year is new, and called Time Attack 2. This class requires an FIA approved fuel cell be used, so she picked one up (used) and asked us to install that in the trunk. Instead of cutting out the trunk floor and mounting it low, they asked us to just put it on the trunk floor but to mount it with a sturdy crash structure.

    _DSC1961-L.jpg

    After some minor refurbishment and cleaning of the cell, Ryan built this mounting cage out of 1x1" square tubing and the upper structure can be un-bolted to extract the cell for service work. The battery box was relocated slightly and attaches to some of the same structure.

    _DSC2596-L.jpg

    Moving to a 22 gallon ATL fuel cell required a little bit of plumbing rework from the lift pumps (now inside the cell) as well as to the external surge tank and Bosch 044 pump inside of that. These braided lines were re-worked by the same crew that built and plumbed the entire car in 2012 - Pirtek Plano South. Ed, the owner, came by and made these lines himself, earlier today. Now the cell can be filled with E95 ethanol and is good to go.

    What's Next?

    We aren't done, but time is starting to run out.

    _DSC2047-S.jpg _DSC2602-S.jpg
    Left: New Tilton pedal assembly is already bolted in. Right: The pedals and master cylinders are in place, waiting for new plumbing

    There's more work already underway that I'll show in my next post, including: new Tilton pedal assembly, new triple Tilton master cylinders (2 brake + 1 clutch), a remote adjustable balance bar for the brakes, custom firewall work to mount all of that, a new wing is inbound from AJ Hartman which we'll make new mounts for, and the MCS shocks should be here any day as well.

    More soon!
    Terry Fair @ Vorshlag

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    10 Jun 2014 11:05 AM

    Project Update for June 6, 2014: After the last update we worked another week on Brianne's Pikes Peak Subaru. In that week several key issues were built or completed, including a custom set of rear wing mounts for a new carbon 14x72" wing, new clutch and brake master cylinders, tome tow hook was added, and lots of other small items were buttoned up before she came to pick up her car. Let's cover this last installment before the 2014 PPIHC race now...

    Firewall Mods + New Pedals + New Master Cylinders

    This Subaru was purchased in 2011 by Brianne Corn Racing already semi-race-prepped. At that time the factory ABS system had been disabled, and they had very little time to prep the car for the 2011 PPIHC event (a handful of weeks). During the mad thrash to prep the car they looked into repairing the ABS, and replaced some sensors, but it looked like it had been disabled internally and Brianne decided it wasn't worth the effort to repair. Our name was on the fender back then because we sponsored camber plates. We never saw this car until May of 2012, a few weeks before that year's race.

    Image3-S.jpg DSC_2596-S.jpg

    She has since done multiple types of competition events in this car and even likes to use a handbrake for super tight turns, so having a non-ABS braking set-up has some advantages for her - so that ABS system was never revived. Also, with a heavily boosted turbocharged engine (600+ whp) and under racing conditions, the brake boost was erratic. So this Subaru has been used for the past several years with an OEM brake master cylinder, stock booster, and no ABS. Not the ideal situation, for sure, but we had a good plan to upgrade all of that plus give some real front to rear bias adjustment on the fly.

    On a race car the weight of the entire driver/car package can change through a longer driving stint, mostly due to fuel load changes. And with the fuel cell normally located in the back of a car a brake bias adjustment is typically used through a driving stint to keep the 4 tires braking the same way, as weight is moved off of the rear tires due to fuel burn. Also, when bad weather hits (and for Pikes Peak it frequently does) you really need to alter the brake bias front to rear, to keep the rear tires from locking. And at Pikes Peak, a simple rear tire lock induced spin could send you tumbling down a 600 foot drop...

    Normally the ABS can pretty much keep the brakes proportioned well enough to cover all of this. But when you don't have a computer proportioning the brakes for you "on the fly" hundreds of times a second, like a modern ABS system does, how do you alter the front to rear brake bias?

    _DSC3204-S.jpg i-RsDKKT4-S.jpg
    Tilton brake proportioning adjuster we're using on a different customer's race car to reduce rear brake line pressure

    There are simple "knee point" brake proportioning valves that can somewhat adjust rear bias, and we're installing this Tilton unit above into a customers endurance car today (it was installed minutes before I wrote this). This type of proportioning valve is installed inline with the brake hydraulic line for the rear brake channel, just aft of the master cylinder but before it goes into an ABS block or any factory proportioning block or prop valve. The Tilton unit above is specified to adjust from no reduction in the rear pressure to as much as a 57% reduction.

    til-72-601_w-S.jpg til-72-408_w-S.jpg

    But for true front to rear adjustments nothing replaces a racing style dual master cylinder with a real adjustable balance bar. This takes the brake pedal arm (with the right type of dual MC pedal assembly) and moves the pivot point before the dual MCs right to left, to alter how much stroke there is on the front or rear brake master cylinders. A cable operated adjuster (usually on a knob, sometimes a lever) remotely alters the pivot and the driver can make small changes throughout their driving stint to correct for fuel load or weather changes.

    DSC_3301-M.jpg

    This is how most "true race cars" and formula car braking systems are set-up - with a racing pedal box set-up for dual master cylinders and often with a spot for a clutch pedal and clutch master cylinder as well. We forgot to get a photo of the brake bias adjuster knob installed, but it went in the center console right were the yellow "smiley face" decal is in the picture above. This knob adjusts a cable which slides the pivot point on the balance bar for the two brake Master Cylinders left to right, to adjust the front to rear brake bias. This will allow her to adjust for fuel load, weather changes, or even alter the handling - to allow for more trail braking or a more loose rear end, to suit her driving style as needed.

    _DSC2047-S.jpg _DSC2048-S.jpg
    The stock pedal box next to the Tilton top hung style pedal box

    We also picked up a 2 pedal, dual MC + clutch MC unit, shown above from Tilton (Tilton 72-601), which is a "firewall mount" style that has additional mounting provisions along the top the pedal assembly. You can see the factory Subaru stamped steel welded pedal box next to the Tilton piece. In this image the Tilton unit already has a custom tubular steel welded structure bolted to the top, which Ryan carefully built to mimics the OEM mounting holes. This way the new pedals mount to both the OEM mounts as well as the newly fabricated firewall steel section for a much more rigid assembly and no flex when she mashes the brake pedal HARD.

    Race Car Brake Bias Explained - http://www.stockcarracing.com/techarticles/scrp_0412_race_car_brake_bias/

    Brianne had complained about the firewall flexing and the OEM pedal assembly moving when she stomped on the brake pedal, so we tested this. And she was right - the OEM firewall and brake master cylinder allowed 3/4" of movement upwards when you pressed on the pedal HARD, all due to firewall flex. This made for a wishy-washy pedal feel. The factory firewall is just a thin stamped steel sheet metal structure made of very thin metal that has a funky shape with lots of bends in it.

    _DSC2000-S.jpg _DSC1992-S.jpg

    Ryan looked at this and decided to cut out a portion of the firewall where the OEM brake booster/MC and clutch MC passed through. He then took a piece of slightly thicker steel plate, marked out the Tilton firewall mounting pattern, then cut out the various holes with hole saws and drills. Once the new flat steel patch panel was built it was welded into the existing factory firewall and small patch panels were marked, cut and welded in place to fill in the gaps to the curvy firewall surface. This is now a more rigid "box" structure that is completely flat on the mounting face so that the pedals sit squarely in the car. This rigid firewall structure with the custom bracket he added to attach to the OEM upper mounting holes has greatly reduced the flex.

    masters-S.jpg photo%202%281%29-S.jpg

    Once the new firewall panel structure was welded and blended in place Ryan primed then painted the steel and mounted the Tilton pedal assembly and three new master cylinders. The master cylinder sizes were calculated based on the existing brakes, but can easily be changed to accommodate change to other brake components.

    _DSC2601-L.jpg

    One of the MC caps was a little tight to an upper section of the firewall, so that was altered to give room to remove the cap and refill with fluids. Lastly our friends from Pirtek built all new stainless brake lines from all three MCs shown above to the various junctions, calipers and the clutch slave cylinder that already existed, but we neglected to get pictures of the finished installation before the car was returned to Brianne. Olof and the gang bled all of the hydraulic fluid systems with Motul RBF660 fluid for a clean fill with no air entrapped.

    continued below

    Fair
    Veteran Member
    Veteran Member
    Posts:1021


    --
    10 Jun 2014 11:11 AM

    continued from above

    That Wing Tho!

    The Pikes Peak hill climb has sections of the course that exceed 130 mph in a car like this Subaru, and often there are high speed curves with extreme drop offs... so you don't want to skimp on the downforce.

    SIG2DSC_9399%20copy-L.jpg
    In 2012, the APR GTC-300 wing used was a loaner from my Mustang, but we had something bigger and better in mind for 2014

    Instead of using our old APR GTC-300 wing again, like she did in 2012, Brianne wanted a more modern 2D wing that she could keep on this car for future use. We're now a dealer for AJ Hartman aero products, after having tested the same wing on our car for the past couple of months, we ordered the biggest width they make (72") in their enormous 14" deep (chord) carbon fiber wing. This 9 pound monster arrived with the mounting saddles bonded and riveted to the underside at the widths Jason specified to work with a rear fender mounting arrangement.

    _DSC2765-L.jpg

    We mocked up the wing as high and as far back as practical while keeping it under the "8 inches above the roof line" maximum to allow the car to stay legal for NASA ST/TT classes. Ryan and Brad placed the wing at the maximum height using some thin walled tubing as a temporary structure (see above), then sketched up some uprights in cardboard at this height.

    _DSC2775-S.jpg _DSC2779-S.jpg

    Jason made sure he liked where it was going then we just let our head fabricator Ryan H go to town with the mounts. He transferred the cardboard templates to some of the same 6061 aluminum 3/16" plate that we used on our Mustang wing, which worked great at high speeds (see below).

    10317623_670953959644591_3927480287834422281_o-S.jpg DSC_3898-X2-S.jpg
    A similar wing mount design for an identical AJ Hartman wing we installed on our 2011 Mustang a few weeks earlier

    Instead of a wing mounting structure of the main uprights welded to base plates made from aluminum, which then bolt to the trunk or fenders, Ryan opted to go another route on the Pikes Peak Subaru. He cut out templates in cardboard then made the lower mounting "U" shaped brackets that attached to the fenders out of sheet steel. These compensated for the compound curves and contours of the rear fenders by incorporating the angles, shapes and mounting tabs he built into these lower brackets.

    _DSC2810-S.jpg _DSC2808-S.jpg

    _DSC2820-S.jpg _DSC2817-S.jpg

    After he fabricated these lower "channel" mounting brackets to fit the car and snugly around the upright pieces they were drilled for through bolts to secure the plate aluminum wing uprights. Once it was all fitted and every measurement was checked he marked the mounting holes for the finished brackets and drilled the holes into the freshly painted fenders, which were protected with painters tape to avoid scratching anything.

    _DSC2869-S.jpg _DSC2867-S.jpg

    If you look at the top right picture you will see that the leading edge of the uprights have been "bull nosed" or rounded, to reduce drag. Stainless steel button head bolts were used with nylock nuts and load spreading washers on the inside and everything was secured and locked down. The seemingly too short hardware shown above in these pictures was replaced with the correct length bolts later that day, to achieve full thread engagement on the nuts.

    _DSC2862-L.jpg
    The final wing installation came out great. I'll admit - even I'm a little jealous!

    Another detail we neglected to photograph was a cable limiter that the guys built to keep the trunk from opening all the way. The wing is mounted very high and far back, and the mounting uprights are just a hair wider than the width of the trunk, so the trunk still opens without interfering with the uprights. This trunk is still using the factory hinges and torsion lift springs. But.... you cannot open the trunk all of the way any more. It gets open now to about 75% of the stock range, then this cable limiter stops it from going further and whacking into the bottom of the wing.

    This is important, as the trunk has to be opened to refill the fuel cell. It opens enough to get a funnel and a length of hose in there, and its how Jason wanted it - and he is the one likely to be refueling. There are no "fast pit stops" in hill climb, of course, but he still didn't want to have to make an opening in the trunk lid and extend the filler neck flush with the bodywork or have to remove the wing to fill the cell. This set-up works and we filled the tank to prove it - which was relatively easily.

    Little Stuff

    One little thing I noticed that was missing was a front tow hook. The rear has a solid factory hook that can be reached just under the back bumper cover but the front has nothing. And without a way to hook the front a tow truck driver can do some serious damage to your car in a hurry...

    DSC_6771-S.jpg _DSF3120-S.jpg
    These low cost screw-in tow hook kits have been battle tested on our own cars and many customers' cars

    We started using these screw-in, aluminum, pivoting tow hooks on BMWs a long time ago. We eventually figured out that we could make them work on a variety of cars if we just re-machined the threaded stud or made a new mounting point on the chassis that matched these affordable kits (they are only $25 and come in a dozen colors). Above these hooks are shown on a Vorshlag 7.0L V8 powered BMW E36 and our TT3 prepped Mustang. Both of those cars were good test mules for this hook design (the have each been towed from the hooks without any problems)

    _DSC0173-S.jpg _DSC2819-S.jpg

    So we got a gold anodized version (since Brianne's numbers are going to be white with a gold background) and Ryan fabricated a new mount onto the front frame horn. He chucked the threaded section up in the lathe and re-machined it to fit a threaded hole in the new plate he added.

    _DSC7013-S.jpg _DSC7009-S.jpg

    Last but not least was an upgrade to a brand new, FIA approved, Schroth Profi II 6PT Flexi Belt System set-up for a HANS device (which has necked down upper shoulder harnesses, not shown above). We happened to have one in stock and they grabbed it at the last minute, with the intent of installing it before the PPIHC event in a few weeks.

    20140531_125723-S.jpg 20140531_125802-S.jpg

    Brianne came up from San Marcos last Saturday (May 31st) and when they started to load the car onto her trailer of course it starts pouring rain. Jason got soaked arranging the ramps and boards, and by the time it was loaded onto the flatbed, the rain had stopped. Of course!

    _DSC4799_DSC4799_1-S.jpg _DSC0932-S.jpg

    She still has a lot of parts to install at her shop, including the strut tower brace and various coolers attached to it that we built in 2012 (above left). There is also a set of Motion Control Suspension double adjustable monotube dampers heading her way that she will install, adjust and test. And COBB Tuning has a new shortlblock for her and some dyno tuning that will happen. Stay tuned for more on that, if we can get pictures and details on these upcoming updates to be performed in the next 2 weeks.

    Gratuitous Pictures Below!

    Here are a few of Brandon's best pictures of the finished car, as it left Vorshlag a week ago.

    _DSC2872_1-L.jpg

    Brianne and Jason are heading up to Colorado Springs around June 20th, which puts them on the mountain about a week before the event. Flags will drop for the 2014 Pikes Peak International Hill Climb on June 29th! If you are going to be there for practice days, Fan Fest on Friday, or on race day, be sure to say hi to the Brianne Corn Racing crew and cheer her on as she attacks this hill climb once again. This will be the 92nd running of the Race to the Clouds, and should be a good one.


    10333318_10154222496885113_1284310927123492641_o-L.jpg

    Brandon should be there the week of PPIHC shooting pictures and we will post up again with a "after event" write-up, likely written by Jason with pictures from Brandon and video from in-car.

    Good luck Brianne!

    Terry Fair @ Vorshlag Motorsports

    You are not authorized to post a reply.


    Sunoco 88x31 Button
    Woodhouse Motorsports SPS 88x31 Button
    G-Loc Button Vorshlag 88x31 Button

    Advertise on SCCAForums.com and reach thousands of visitors per day!

    SafeRacer FREE SHIPPING over $99

    Shop for Pirelli tires at Tire Rack. blank



    Sunoco Bottom 468x60 Banner