correct tyre pressure
 

I have a 99 986 but it has the 993 turbo wheels on with pirelli p zero rossos. The fronts are 235/35 19" and the rears are 275/30 19". Can anyone tell me the correct pressure for these tyres please?

Look in the owner's manual (RTFM...I always wanted to say that :p). Start at 29 F/36R, that's what Porsche recommends for OEM tires/wheels (I run 30F/34R).

I run 30/36 on 19's. When you drive for about 15 minutes PSI increases about 2-3 lbs all around.

Agree - start with 29F/36R and then adjust to suit your taste.

I run 30psi all around. But that's me and my specific tires. Your mileage will vary.

18" maximum :confused:

Huh :confused:? Does that matter?

.
 

Thanks for the info guys. Ill go with 29 f and 36 r and see how it goes. At the moment i was keeping them 28 all around but i. Sure it needs to be more than that

I've been meaning to ask the same question. I'm running oem sizes on 18" wheels and my indi put all four corners at about 30psi after a recent tire change. Car handled great like this. Then I tried upping the rears to about 35psi and it didn't take long before a little stomp on the throttle broke rear traction for a split second getting on an on-ramp. I'm thinking about dropping back to 30 all the way around. Anyone else running lower then stock pressure out back?

I run 34 rear. Maybe you hit an oily spot.