Tire psi
Team Owner
Joined: Sep 1999
Posts: 20,054
Likes: 44
From: Swansea IL
Re: Tire psi (Johnny Reb)
I set the PSI at 30 COLD, as they warm up the PSI climbs to between 32 and 36 PSI depending on how hot the road is. Anything more than that (cold) and I believe the tire will "crown" causing the center to wear first.
Tom
[Modified by AFVETTE, 7:31 AM 4/15/2002]
Tom
[Modified by AFVETTE, 7:31 AM 4/15/2002]
Drifting
Joined: Jul 2000
Posts: 1,517
Likes: 1
From: Stockholm
Re: Tire psi (Johnny Reb)
The below is taken from a post in the racing section made by wtknght1
"Generally speaking, add pressure to the end that is sliding too much. In other words, if you turn into a corner and the car doesn't want to turn (push, understeer, etc) you add a bit of pressure to the front to correct this. If the car's rear end comes out too much during turning (loose, oversteer, etc), add a bit of pressure to the rear tires to correct this.
Just for reference, I run Hoosiers when its dry and I start with 31-32 in the front and about 29-29.5 in the back and adjust from there. This seems to be the range at which most of the T1 vette guys are running and the car is very balanced. I try to set the pressures when the outside temp is around 70 degs or so and then check the tire temps after a track session to see how hard the tires are actually working...adjust from there.
The tire rack site has some handling tips and suggestions about tire pressures, spring rates, etc and how to change the handling of the car.
Again though, generally speaking, add pressure to the end that is sliding too much to correct the problem! Hope this clears this up!!"
Maybe it gave some help :)
[Modified by seanr, 2:39 PM 4/15/2002]
"Generally speaking, add pressure to the end that is sliding too much. In other words, if you turn into a corner and the car doesn't want to turn (push, understeer, etc) you add a bit of pressure to the front to correct this. If the car's rear end comes out too much during turning (loose, oversteer, etc), add a bit of pressure to the rear tires to correct this.
Just for reference, I run Hoosiers when its dry and I start with 31-32 in the front and about 29-29.5 in the back and adjust from there. This seems to be the range at which most of the T1 vette guys are running and the car is very balanced. I try to set the pressures when the outside temp is around 70 degs or so and then check the tire temps after a track session to see how hard the tires are actually working...adjust from there.
The tire rack site has some handling tips and suggestions about tire pressures, spring rates, etc and how to change the handling of the car.
Again though, generally speaking, add pressure to the end that is sliding too much to correct the problem! Hope this clears this up!!"
Maybe it gave some help :)
[Modified by seanr, 2:39 PM 4/15/2002]
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Re: Tire psi (Johnny Reb)
I set my tire pressure at 30 psi cold.
Burning Brakes
Joined: May 1999
Posts: 1,084
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From: New Bedford MA
Re: Tire psi (Johnny Reb)
I'm running non-flats Pole Position S-03s with 30 psi cold. They go up to 33-35 on the highway when they warm up. I noticed that the two left sides usually warm up to 1 psi higher than the right sides. For the tire experts out there, Does these indicate a mis-alignment? I had the tires road force balanced and a four wheel alignment just after installing them on new chrome Z06 rims. The car runs straight and true but I'm am wondering if the camber is off on the left side causing the tire to scrub more and heat up higher. Or am I just a paranoid, **** retentive, perfectionist! :)
