Quote:
Originally Posted by gtslow
Having autocross on this site with your FR-S before with the stock tires, do you have a baseline PSI you would recommend for these cars? Looks like we may get some rain on Saturday just like last year.
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I've heard a lot of mixed things from people on the OEM pressures. Some were telling me to run it in the mid to high 30s and others told me run it in the mid 20s. Last event (Packwood) I ended up running 29 front and 30 rear I think. Sounds crazy I know... but when I looked at the tire wear it was way too high up until I significantly dropped the pressure. If you do that you'll get a tire pressure warning though so just make sure you add some pressure back when you're done.
Consensus seems to be start at 40/40 and see what you get.