dukmon

For everyday and mountain road driving? What's the pressure you're shooting for front/rear to start the day, cold tires?

Especially with stock or stock sized 18" wheels.

Thanks

Marv

Stock pressures as Porsche recommends for street driving. I'll drop them for Autocross, but I don't race on the street, so 32/39 front/rear are fine.

mistermct

i use my hot track pressures as cold street 32/34

Marv

Doesn't that increase understeer? What is your alignment specs (stock or something else)?

mistermct

Alignment is track/street at approximately kussmaul settings. Wear is quite even across the tires with mixed track and street use. Got almost 20k kms from my last set of rears. I started searching for pressures because the car rode terribly with 39r - the back end always felt like it wanted to step out and I had brand new tires, guard diff, fresh alignment, and new engine mounts. The drop in rear psi made a huge difference for me - IIRC credit goes to powdrhound for the pressure starting point. Does it understeer? Relative to a 39psi tire, definitely. But I'd rather have more total grip and keep that rear end behind me 🙂

Tires are stock size yoko ad08r, ohlins r&t now but driven mostly on stock shocks that were just meh.