TT Understeer

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Aug 6, 2001 | 08:13 AM

TToronto

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Joined: Mar 2000

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TT Understeer

Just returned from lapping day at Shannonville, Ontario. Unbelievable understeer with my 225C TT as compared to my friends' S4 and A4. I was plowing thru corner after corner. Tried bringing the rear around by trail braking to no avail. Yes, ESP was turned off.
I'm running on 16" Toyo R1's with Bilsteins and H&R sport springs.
Any suggestions to improve the excessive understeer would be appreciated.
It was suggested by someone at the track that I consider lowering the front more and add a bigger rear sway bar. What about tire pressures?

Aug 6, 2001 | 06:28 PM

Ryan E.

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Joined: Mar 2000

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I have the same problems....

This is what happened to me last time out. I have the same suspension setup as you. The problem is that you have a lot of negative rear camber and very little negative camber up front. The best thing you can do is get the Kmac camber kit for the rear and a thicker rear anti-sway bar. This should run you about $400-$500. You could also up the rear tire pressure, but that won't solve it all. Email me if you want to talk about it more.

-Ryan
rdenglish@hotmail.com

Aug 6, 2001 | 11:23 PM

Bollinger

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Joined: Mar 2000

Posts: 39,901

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under power or not?

I don't think you can reduce the underpower understeer as the car is a FWD car at heart. Just lay off the gas a little more on the way out of turns.

If you're plowing on the way in, I don't know what to do.

Aug 17, 2001 | 11:51 AM

?lueshirt

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Had same problem... able to remove most understeer by

adjusting my Bilstiens PSS9's/ I softened up the front to about 6 (out of 9) and stiffened the rear to 1. Most plowing stopped.

But I did order the 19mm sway bar from neuspeed.