fhp911

I run Michelin Pilot Sport Cups as the dry track tire on my '11 Boxster S.

QUESTION: What should my (cold) tire pressures be, front and back?

In my former '04 GT3 I ran 25 psi (cold) in front and 28 in rears (as recommended by Michelin), but the Boxster isn't as rear-weight biased, so maybe the pressures should be more even?

COMMENTS/ADVICE SOLICITED AND APPRECIATED.

Schmidts Cat

Have you checked the temps when you get off track? The car is also lighter than the GT, so that would also mean lower pressures might be in order. What hot pressures on track?

Bill Lehman

On my Cayman, I ran 26 F and 28 R Cold which gave 33 F and 36 R Hot. Over time, I began running F & R closer. Last notes using MPSC show 34 F and 35 R Hot. Now running BFG R1 and run both F & R at 36-37 H. My suspension has also changed over time which influenced the tire settings.

fhp911

Previous posters -- THANKS for this info.

I'll be at NJMP Lightning this Friday and will experiment