Jameel

As the title says, what should my cold and hot tire pressures be for a lapping day and Autox on set of NT555R2 (275-17 front, 305-18 rear)?
The tires are mounted on stock rims on a C5Z06.

Thank you.

L98Terror

Hot about 36 PSI

Jameel

Front and Rear?
And for both AutoX and Lapping days?

Thanks.

mark b

I agree dont go higher then 35 hot, they get too slippery... keep them at 28 to 30 cold then check pressures each session and adjust so you stay at 30 or 32...

sperkins

I had good luck with mine at 28/30 cold. Rears would get to about 33-34 hot depending on the track and ambient temps. At autocross, I started a pound or two lower since you can't really heat them up. If tire life is a concern, go with higher pressures as L98Terror said.

Tip - be sure to rotate side to side or you'll wear the L/F faster on most road courses.