PCA SDR

I'm going to run 205/225-16 KUMHO MX tires at the DE, any idea on tire pressures?

All cars being slightly different, I think you might have to experiment a little (not like you won't have enough laps for that )

With the 944 on street tires (Kuhmo, Yokahama, now Hankooks), I usually start my tires at around 32-Lbs. cold, and warm them up to around 34 to 35 lbs hot. HOWEVER: we're talking about a 3100Lbs car, with the engine in the front/trans in the rear (neutral weight ratios), and a loose nut behind the steering wheel.

For a 911 or 914-6 the optimum hot tire pressures may be different ..... and I'd guess a little less pressure. So, maybe start them at 30 to 31 lbs cold, and be prepared to let a little air out as they get hot? That would be my approach.

Then again, I have water-on-the-brain .

I'll see you there, with my street tires, too.

John,
Jump on the Kumho web site and you will probably find their recommendation. If not, you will find a contact number or email and you can ask them direct. In my experience, tire manufacturers are pretty good about getting back to you with technical data.