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Old Oct 16, 2002 | 04:11 AM
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CivicSiRacer
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From: Someplace with cones=AUTO
Default Re: Want to go to my first Autocross

my car
89 CRX Si
filter on tb for an intake
D15B2, yeah yeah I know, but it's rebuilt and got me driving
Stock springs and shocks.
gutted
front upper strut bar
13" Steelies

Sounds like you are in D or E-Prepared. Definitely not Street Mod for SCCA. The stripped interior throws you out of SM.

Air pressures sound good for now.

TO use the pyrometer you have to measure your tie temps as soon as you get off the course. Having someone else do this is easier. You want to measure the outside, middle and inside tread. For the front tires you want the temperatures even across the tire. Low temp in the middle means add more air. Low temps on the shoulders (edges) of the tire means take out some air. You don't measure the rears. You adjust the tire pressure to your liking of oversteer/rotattion. TOo much rotation and bring the air pressures closer together. Not enough rotation and add or subtract more air pressure.

The CRX is throttle lift oversteer happy. I know it happened to me alot
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