Tire pressure for Auto -x

[SNKBYT]

Has anyone run their ACR with PS-2s for auto-x? I have PS-2s, 295s up front and the 345 in the rear. I was wondering if anyone had any experience running these. If so, what tire pressure would work best? Front and Rear. The Auto-x course is almost 1.5 miles long. Not enough time to heat up the Pilot Sport Cups, so i am going to use the PS-2s. Doing this tomorrow! thanks

 

[viper067]

Given that you are not going to heat up the tires to their optimal stickiness, I would start by inflating 5psi over the cold track day temp. Most people seem to run the PS2's around 29 (recalling from memory) so start with 34psi and adjust from there.

this is pure guesswork on my part as I run Kuhmos on a Gen 1

 

[ACRBruce]

Try to run Kumho XS if you don't want to run another set of tires and wheel just for autox. Do a search around here and you'll find more comments about them.