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Old 06-22-07, 12:15 AM   #137 (permalink)
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Kalun_D
5 Tenths
United States
 
Join Date: Dec 2003
Location: Seattle
GT40: Scratch build
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Re: What causes heavy steering at racing speeds

8" wheels with 1/2" outer offset. The most available with these wheels.

Suspension is always compromise. You start with the wheel tire setup, the most outer offset available, then with the standard race caliper with pistons on both sides of the rotor, that takes up a lot of room. It's hard to get to zero scrub especially with anything off the shelf. Look at lots of the supercars now too, LOTS of outer wheel offset to the point there's no outer rim lip, don't think anyone makes a Halibrand or BRM with no outer rim lip. When you go inboard with the rim you run into clearance problems making the a-arms narrower or reducing the turn radius. And don't think turn radius is not important in racing, just wait until the back end slips out and you need max recovery steering angle. ....auuugh!!!

Last edited by Kalun_D; 06-22-07 at 12:34 AM.
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