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7A Transmission...dare I commit heresy?

Originally Posted by wstar Re: Osiris tweaks to the 7AT Torque Map: IMHO you should really only do that to adjust for engine torque, and even then on NA we're

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Old 12-08-2011, 01:19 AM   #10 (permalink)
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Quote:
Originally Posted by wstar View Post
Re: Osiris tweaks to the 7AT Torque Map: IMHO you should really only do that to adjust for engine torque, and even then on NA we're talking +10-15% over stock values at most. The guideline is to monitor slip under what should be lockup conditions (slip meaning RPMs vs wheel speed isn't stable), and tune the torque values just high enough to reliably kill slip.

When you set them massively higher than they need to be, it does exactly as you describe: every time you click the button it slams everything and kicks you in the butt. You're just causing excess wear all over your drivetrain, and more importantly for track stuff, you're upsetting the balance of the car. The last thing you want while upshifting out of a corner and still pushing to the side a bit is to suddenly shock the drivetrain and rear wheels. It may feel "faster", but the quick, smooth engage at a lower torque map value is better.
Your right on as far as I can tell ... You should just leave the program alone and let it adapt... You want to beat on the car racing but, you don't want to break anything. Been there and done that with modified shift programs on autos before. Plus, I believe in stock mode the little bit of slip you get on engagement in the corners helps you from sliding around in VDC off mode. Most of you guys wouldn't think about upshifting a manual half way through a corner. Very nice how that all works...

Last edited by Mecinoid; 12-08-2011 at 01:24 AM.
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