Additionally, over-inflating tires can lead to uneven wear (middle now goes first) , and the stock tires, while amazing, don't last all that long as is.

Hunter S. Thompson says: <edited for brevity>

"But the whale --- instead of cutting loose at the critical moment --had a tendency to dig in, which accounted for that sickening 'here we go' sensation. At first i Thought it was because ... the tires pumpted up to fifty pounds each, which alramed the attendant....It's not often that a man gets a chance to run terminal experiments on a virgin Cadillac with four brand-new $80 tires. For all I knew, that thing might start corrnering like a Lotus Elan." <-- Fear and Loathing in Las Vegas.

 

The wifes dissco calls for 48 cold in the rear. I run upwards of 60# hot on the track with both street (s02, s03, pilot sport, azeni) and track (rs303, A032's), with zero problems.

 

[QUOTE]Originally posted by steve c

 

That's because an over inflated tire is ballooning out on the tread so it's only the middle of the tread that's in good contact with the pavement. Less tire in contact with the ground equals less rolling resistance. It also equals less friction for other things like braking and turning which accounts for the cautions that others have posted here about squirley handling with over inflated tires.

Do so at your own risk!

Drive Safe,
Steve R.

 

I only use 11psi in each tire because the air pump costs $0.50 and never lasts long enough to air them all up to 32psi. It'd be dumb to have 2 tires at 32psi and the other 2 at 10psi, but when that happens, I make sure the 2 tires with 32psi are on the driver's side to accommodate for my extra weight.

 

 

Only way to tell is to take it to an autocross (or setup your own road-course in an empty parking lot)..bring an air-compressor... and start dialing it up..

For me, runnign A032R's 225 front/255 rear R-Compound, I have to run 30psi rear, 35psi front to get balance right... otherwise I over/understeer badly..its actualyl quite sensitive...

Running the SAME PSI on front/rear (even on S02s) caused me to understeer in hard turns.

 

32psi cold is what's on the door jam but the tire itself has a max pressure rating of 51psi.

Your're fine. The vast majority of tires on the road are underinflated.

 

I run 35psi all around.
I have driven at triple digits and it seems fine.
But i wouldn't run any higher in case i hit the max psi rating and hit a pothole.
I think that would cost me more to replace two tires.
Plus too high of tire pressure makes it more of a bounce ride.

 

Strangely enough, I feel a little more confident with higher pressure because I can feel the road better. It is as if even though the traction may be less, I have a better sense of how close I am to the edge.

It is more bouncy, though, and you can really feel the road textures.