Define “much higher pressures than you usually do”! In my C4s, I’d start with comfort psi and probably go down from there as the tires heated up. Psi is psi. Doesn’t matter what the outside air temp is except that the rate and degree of change in psi will be effected by the ambient track temp. IMHO, you never want to come off the session above 33F 39R in a 991.

It’s a common misconception that one needs 1) to drive a Porsche and 2) be a member of PCA to sign up for PCA Potomac track events. The only requirement is that you have at least some previous track experience, which can include several Autocross events, or sign up initially for our High Performance Driving Clinic (also in March), which serves as a basic introduction. Prior to each HPDE cars must be tech inspected. We have a free “tech session” at a local shop one or two weeks before the event. These are enjoyable even if you don’t attend the track event.