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Last Post 23 Jul 2011 10:05 AM by  Sixty_SS
Any Automatic drivers? related questions
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scardeal
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14 Jul 2011 03:30 PM

    For my own reasons, I'm Autocrossing a 2007 350Z automatic. I don't have any desire to swap in a manual (although the manual rear end ratio is in the works..).

    I was reading through the SP rules, and I noticed that torque converters were allowed to be replaced. I'm creating an SP roadmap for my car, and I wanted some feedback on related experience.

    1. Has anyone regularly autocrossed an auto in SP trim? (I hear C4 vettes preferred autos in SP trim.)
    2. Have you replaced the torque converter with an aftermarket unit?
    3. What was your experience with it in Autox? on the road?
    4. Did it have a measurable affect on AutoX times? MPG? anything else?

    Thanks in advance.

    cdlong
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    14 Jul 2011 05:09 PM
    5. Is there even an upgraded torque converter available for the 350z?

    That may render all your other questions moot.
    scardeal
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    15 Jul 2011 09:11 AM
    Yes, yes there are at least 2 companies making them, and one of them, at least, customizes it to your specific use. They have enough guys doing drag racing with them that I guess it's worthwhile for them.
    Sixty_SS
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    23 Jul 2011 10:05 AM
    Steve, as you know (or maybe you don't), I run an auto in my Corvette. I think the 67k question is the stall. If you get a super-high stall, your car will be crazy (huge oversteer) in tight areas. The right gear choice should pretty much address the torque issues with a stock / mild converter.
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