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-   -   What is the best tire pressure for FC's at autocrossing? (https://www.rx7club.com/race-car-tech-103/what-best-tire-pressure-fcs-autocrossing-104333/)

dre_2ooo 08-11-02 02:00 AM

What is the best tire pressure for FC's at autocrossing?
 
Going autocrossing 'morrow and was curious as to the best tire pressure F/R, respectively.

Car in sig w/BF goodrich Touring T/A tires P205/60/VR15. No suspension mods at all.

dre_2ooo 08-11-02 07:30 AM

ugh, thanks :).

(BTW THE AUTO-X IS/WAS 8-11-02, DO NOT BRING THIS THREAD BACK FROM THE DEAD)

Node 08-11-02 07:49 AM

Don't worry, I will :D

Silkworm 08-11-02 09:56 AM

Sorry, was at Laguna Seca taking pictures of all the vintage cars, you should have posted here EARLIER this week :)

tims 08-11-02 11:43 AM

it is also a little difficult to give pressure recomendations over the internet. this takes some testing and monitoring to get right. also it is very track and temperature dependent. get a good tire pressure gauge and a tire pyrometer and take pressures and temps and keep a log with the track and surface temp. also make notes for future reference. most race tires or "R" compound tires are looking for 180*F accross the tire and 35psi for the DOT tires and 25psi for slicks hot. I usually start DOT's at 28-29 psi and slicks at 17psi cold. outside temp over 80*F


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