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On my last track session, it seemed as though the back end of my '97 wants to unexpected come around during moderate acceleration out of a corner. Maybe I'm driving more aggressively these days, but I didn't notice it quite so much at Motorsport ranch in Oct.

Since TMR, I've cut two coils off front spring, one off back to drop car 1.5". I've increased koni stiffness from 1/4 to 1 full turn, and I've gone from an unknown alignment to an aggressive street alignment. My tires are at least 2 years old (18" pilot sports 285 and 335s). I put down a 1.85 60' at V-10 nationals last Dec, so there's still a little stick left in them.

My thoughts are to drop the rear stiffness back down to 1/2 turn to see if that will give me more squat (and traction) on acceleration, kindof like going to a 17" rear tire. Another option is to ignore the suspension and put the pilot cup tires on the rear and keep the front pilots as is. \

Any ideas before I do anything.

thanks

 

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Nobody mentioned the pilot cups, so I guess you guys don't think much of them. Getting 5-6K miles/set doesn't really bother me--that's a couple of years driving!

I was running 30/29 in front and 28/27 psi in rear at TMR, and 30/29 front and rear at TWS. Maybe I should've gone softer in back.

I really dig the stance of the car now, and don't want to go back to stock springs. The eibachs, I've heard, are stiffer than even my cut springs (yes, they were kept cool during cutting). So I think for spring stiffness I am somewhere in between. In retrospect, I maybe should've done the custom 1/2" spring perches 1st, then later cut the springs a little less (I'm still not convinced that the springs are my problem).

JT, where do you get your springs from. All the places I checked out need expensive kits to add adjustability and such. I'd love to keep my dropped look and still be able to launch at the drag strip. Divulge your sources!

I can't find the suspension settings, but it was set up by an experienced vipertech for aggressive street/occasional track use.

I'm still thinking the rear springs are overdamped. At the factory 1/4 turn, you could compress the shock and watch it extend to full in about 20-30 seconds. At 1 turn (out of 1 1/2 turns) you can compress the shock and come back 5 minutes later and not see full extension. There is a lot of difference!