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Kirkham Motorsports

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Old 06-27-2011, 01:17 PM
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Thanks, Jeff!

Quote:
Originally Posted by smallblockhead View Post
Allen,

What setting do you have for your rear sway bar? I stiffend mine up (set 1.5" in from the end) which resulted in more neutral handling. I don't have PS either, and at first thought it was a problem, but I feel like it's not quite so necessary now, as I can pretty much go from understeer to oversteer with throttle and brakes, and don't have to crank the wheel so much. Remember, the guy who keeps his wheels the straightest usually is the fastest!

Gary
Gary: I have mine set the same as yours and can't get it any stiffer due to clearance to the halfshaft. What tires and widths are you running? I have a bit of a push condition and run ERA's maximum recommended width (275/315)Hoosier A6's on 17" wheels. If experiments with springs don't pan out like I hope, I may adjust my tire width stagger when these wear out to get to a more neutral condition. And main reasons for the PS conversion from a performance perspective is for running more caster with the 275's in front and getting a quicker ratio. My club tends to run some pretty tight transitions..

All input and comments are appreciated!!

- Allen.
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Old 06-28-2011, 06:03 AM
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Allen,

The clubs that I run autocross with have pretty loose classing, and street tire classes are pretty competitive. I'm running Kumho XS 275/315 x 17. I have camber set at -1.5/-2.5 front/rear, didn't touch the caster, and slight (1/16) toe in up front.

My theory was to increase the traction capabilities in the rear (more negative camber), and then increase rear weight transfer (sway bar) to make the car more neutral. That, and a lot of trail braking!

As of yet, haven't done anything with spring rates. Concentrating on the driver now, that's less expensive!

Gary
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