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2 Replies and 2200 Views Magnus effect aero  2200  2 Started by  the3lracer So one of my friends running in SSM is toying with the idea of creating a rear wing designed to make use of the Magnus effect ( This would be, in some way, powered by an electric motor (I'm guessing some sort of belt-driven system). The system would spin at a constant velocity and could not be switched on/off while the vehicle is in motion. The $10,000 question is, would this be legal in SSM (or any class, for that matter) if it could fit into all...
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by  the3lracerJump to last post
08 Jul 2015 03:01 PM
1 Replies and 3139 Views Best Tire for STS Miata  3139  1 Started by  JsnMR2 I'm tired of beating on my daily driver, a 2015 Audi S3 that I am currently running in ASP because of my APR stage 2 tune. That being said, I'm buying a friends fully prepped STS Miata. I ran a 50.1 in my S3 at the last event, while the owner of this miata ran a 50.07. He let me do two fun runs in it, and I ran a 52 followed by a 50.7. I feel I had some room to grow still being that I never drove a Miata before. It currently has 200 tread wear 195/50/15 RS3's on it. Last year, he ran 140 ...
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by  sjfehrJump to last post
01 Jul 2015 05:40 AM
1 Replies and 2574 Views STS 90 Civic Si Radio Delete  2574  1 Started by  Cagare I have recently built a 90 Civic Si to STS class. Currently we have a few last motor items to do like a high flow cat, and a lightweight pulley. We are currently trying to do a weight reduction program and we are targeting the stereo and speakers. Can anyone comment to me on the legality of removing the stereo and speakers from the car. I know this was an option from the factory back in 90 when the car was purchased but I was not sure if we could remove it from a car that already has one. ...
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by  ronJump to last post
07 Jun 2015 07:46 PM
34 Replies and 14000 Views SMF minimum weights raised by 200lbs for 2013!?  14000  34 Started by  Black R
(Topic has multiple pages1 2 )
1850lbs 125lbs/L for a 2-seater! 1750lbs 125lbs/L for a 4-seater! 1L addition for forced induction. Now which of you wrote letters to the SEB asking for MORE weight Please help me to understand the rationale behind this.
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by  tomsn16Jump to last post
17 Apr 2015 03:43 PM
1 Replies and 3433 Views 2015 F80/82 M3/4 Classing  3433  1 Started by  minskcity Does anybody know if the new M3/M4 eligible for STU It seems to be meeting the 'under 3.1L force-induction', but is it 'non-sports-car based'
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by  drdisqueJump to last post
10 Apr 2015 11:34 AM
1 Replies and 3011 Views Help with choosing a class  3011  1 Started by  JakeG8V8 2009 Pontiac G8 GT 6.0 V8 6AT ( :( ) stock ;) not Koni Suspension with H&R springs Whiteline strut mounts second gen CTS V Wheels with Michelin Pilot Super Sport tires F 255/40/19 and R 285/35/19 Stock brakes with more aggressive pads and plain rotors Solo Performance Catback stock cats stock headers stock tune Roto Fab Cold Air intake its my first post here i hope i did it in a right place im looking for pointers and advice is appreciated ! im looking to have some fun meet new pe...
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by  drdisqueJump to last post
10 Apr 2015 11:29 AM
2 Replies and 3312 Views '02 Impreza in STS?  3312  2 Started by  RedGT Is there a history to why the '02-'04 Impreza 2.5 (nonturbo) is not classed in ST* I would have thought it to be marginally (or maybe a lot) slower than the '98-'01 generation 2.5RS, which is classed in STC, now STS, and therefore no harm in throwing it in there. Am I overlooking some reason the '02 was expected to be too fast for the same class, or was it just overshadowed by the WRX from that generation on and no one ever asked for an ST classing
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by  drdisqueJump to last post
09 Apr 2015 09:05 PM
6 Replies and 4237 Views Question regarding STX WRX (2015)  4237  6 Started by  dotslashapex Hi everyone, Long time autocrosser in San Diego running a STX Prepped E36 325i Sedan. As the e36 is aging pretty rapidly, I figured, I'd pick up a class ready car from the factory, so I picked up a 2015 Subaru WRX which will EVENTUALLY be a STX backup car. Since in STX you can't raise the boost pressure (I think this is true for any ST car with a turbo), what potential tuning source could be used The ever popular one is the Cobb V3, but I don't want potential rumors filling the paddock...
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by  SIMMONS-RACINGJump to last post
06 Apr 2015 09:58 PM
6 Replies and 4920 Views Help -- BFG Rivals on 7 wide wheels  4920  6 Started by  VettesRule What tire pressure should I run in my STR Miata.  15x7 RFP1 wheels, 700 front and 450 rear springs, Fat Cat non adjustable shocks.  Stock weight and ride height with lots of negative camber.   Thanks in advance!   Danny
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by  OZMDDJump to last post
25 Mar 2015 02:36 PM
10 Replies and 3993 Views Clarification on strut bar mounting rules in STX  3993  10 Started by  ChristianNJ Hi, I am looking for some clarification on the strut bar rules in street touring. There are some strut bars available for the Golf V, which would need a minor cut out on the upper firewall to be properly mounted. In the rules below it says 'This does not permit any modifica-tions to the frame or unibody beyond the allowed mounting holes.' Does 'mounting holes' just refer to holes for mounting bolts or also for holes for strut bar clearance There is pretty much no way in installing a strut bar ...
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by  OZMDDJump to last post
25 Mar 2015 02:33 PM
9 Replies and 4030 Views Tire size advice- STS Integra  4030  9 Started by  DeltaV I'm currently embarking on a project to build a 98 Integra RS for STS. I'm stuck between two tire sizes: 205/50/15 and 225/45/16, both on a 7.5in wheel. The way I see it: 205/50/15: Shorter gearing, lighter, come to temperature quicker, cheaper. Not as many tire choices, larger sidewall, risk of overheating with the heavier car. 225/45/16: More tire choices, more tire for the heavier car, shorter sidewall. Taller gearing, heavier, may take a few runs to come to temp, more expensive...
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by  DeltaVJump to last post
18 Feb 2015 11:09 AM
6 Replies and 4957 Views 2015 WRX Classing STX or STU?  4957  6 Started by  stevesnow I know that 2008-2014 WRX's are officially in STU... which puts them at a disadvantage obviously... I am wondering if the 2015 may be able to squeak in as an STX The STX class does have a 2.0L engine max rule that I think may allow the 2015 WRX sneak back into Although I have no slue what I am talking about lol. Could we get some official rulings here Or at least as many people's opinions as possible or back-up for said opinions Thanks!
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by  sjfehrJump to last post
17 Feb 2015 07:05 PM
13 Replies and 9742 Views How can I determine what Bilstein shock valving to use?  9742  13 Started by  SpeedingBolt     I have come to the conclusion that I want to get more durable shocks for my 96 STS miata since my old Advance Design shocks seem to need a rebuild every year.  I have decided that I want to use Bilstein's but to get FCM elites it runs about 1900$.     I'm a cheap bast*rd and decided I'd see if I might be able to go a different route by geting some Bilstein ASN shocks and the coilover componets to adapt them.  This way I can order valving that would be...
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by  SpeedingBoltJump to last post
04 Feb 2015 01:28 PM
1 Replies and 2638 Views STC Setup Legality (Edited)  2638  1 Started by  apex_DNA Hello everyone, I have a '91 Civic Si. Is King Motorsports' 'OEM build' ( legal in STC class, and what about Exedy OEM replacement clutch (P08012)
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by  SpeedingBoltJump to last post
04 Feb 2015 12:53 PM
4 Replies and 3172 Views Tire advice - 255/40-17 versus 245/35-17  3172  4 Started by  ChristianNJ Hi, I am currently running Direzza Z2 255/40 on 17x9 at the front and 225/45 on 17x8 at the rear on a VW GTI MK5. I noticed that the Toyo R1R will be available in 245/35-17 assuming it will be changed to TW200. The diameter difference is more than one inch and I would see better acceleration and a lowered center of gravity. Looks like people rate the R1R lower than the RS3 or ZII SS but would the other benefits give a net advantage for the R1R
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by  Z3papaJump to last post
28 Jan 2015 02:03 PM
3 Replies and 2515 Views ST Tune... for Boosted Cars  2515  3 Started by  nilfinite Apologies if this has been asked before. There seem to be a ton of threads about it but funding the answer is still a pain in the pass. Can we quickly answer this question for the benefit of future people looking for the answer. There are several options to tune a car. 1. Replacement ECU 2. 'True-Tune' modifying the stock ECU settings 3. Piggyback (Modules that plug into the ECU wire harness and modify signals that go in or out of the ECU) 4. Sensor Modifiers (Tunes that tap into spe...
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by  John PJump to last post
21 Jan 2015 11:02 PM
88 Replies and 20600 Views C5s in STU?  20600  88 Started by  hklvette
(Topic has multiple pages1 2 3 ... 4 )
Let the bench racing begin!   For reference: Bolt-on LS1s seem to get around 335rwhp, 345rwtq.  1st gear on stock diameter tires is 53mph 6200.  2nd is about 80mph.   Weight is around 3100 sans driver for the lightest versions.   edit: In case you're wondering where this came from, look in the Street Touring section of the August Fastrack.
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by  OZMDDJump to last post
14 Jan 2015 01:04 PM
2 Replies and 3240 Views STU Wheel/Tire Combo  3240  2 Started by  crazycalm I am looking for some advice on an STU build. I understand that for a RWD car, 285 tires are the maximum width allowed. I am looking for some advice on whether I should try and go with a square 285 set up, or do a staggered set up with a smaller width up front. Clearance is not an issue so is there any reason why I shouldn't go with the widest tire available Thanks in advance!
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by  drdisqueJump to last post
10 Dec 2014 10:59 PM
0 Replies and 1156 Views RS-3 cold weather storage/races  1156  0 Started by  VW_rob_85 It's dropping to lowes of 18 and highs of 40. How damaging will that be Worth driving them in that to scrub the mold release off I'm hoping to race Sunday and it's calling for 42/21°. Also anyone found new tire blankets since mls went out of business
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10 Nov 2014 09:49 AM
2 Replies and 4177 Views BRZ STX Car Setup For A Newbie  4177  2 Started by  brianL I'm new to the sport and have been loving it! I have done about 6 events this year and I did the evolution driving school phase one. I have a few questions about setting up my car for events and during events. Car and mods 2014 subaru brz -KW V3 coilovers -enkei rpf1's 17X9 all around -Bridgestone RE11a's -I have a 'street friendly' alinement   What I want to know is how stiff should I make the front and rear and what tire pressures to run So far I have ran 33psi front and 30psi re...
2 4177
by  Nathan AtkinsJump to last post
30 Oct 2014 01:47 AM
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