Tire Pressure ?
09-21-2004, 04:22 PM
#1
Staging Lane
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Join Date: Jul 2004
Location: Ellington, CT
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Tire Pressure ? So i'm at he dealership getting oil done and the tech starts deflating the tires ( I have Goodyear Eagle F1 GS-D3s, max pressure is 52#) So I go talk to the tech and he says my car has a suggested tire pressure of 35# and that the suspension can't handle tires that full. But the stock tires are supposed to be filled to 44#, whats the deal. The tires look like they are goin flat now and I'm worried about the tire rolling under any lateral g's. The car feels smoother over bump,s but that never really bothered me to begin with having a performance car and all. What do ya'll thing is the best answer?
09-21-2004, 05:02 PM
#2
The original equipment F1's had a max pressure of 44 psi, which BTW one should not run for extended periods of time. The door sticker on F-Car actually recommends 30 psi (if I recall correctly) I have been very happy with 30 psi COLD!
Now for your situation, you may need to experiment with what works best for you. I guess if you play the "ratio game" recommeded vrs Max:
30/44 vrs ??/52, equates to your psi should be 35 psi cold . . .
An over inflated tire will tend to follow the ruts in a road more, and wear the centers out faster.
An underinflated tire will ride softer, run hotter, and wear the outsides faster.
I know not much help, but maybe my dribble makes sence . . .
Now for your situation, you may need to experiment with what works best for you. I guess if you play the "ratio game" recommeded vrs Max:
30/44 vrs ??/52, equates to your psi should be 35 psi cold . . .
An over inflated tire will tend to follow the ruts in a road more, and wear the centers out faster.
An underinflated tire will ride softer, run hotter, and wear the outsides faster.
I know not much help, but maybe my dribble makes sence . . .
09-25-2004, 12:15 PM
#6
Typically 32-34 cold is about right for the front. I'd run about 28-29 rear and watch the wear pattern. If it seems to start wearing more in the center, I'd drop the pressure 1 or 2 pounds.
When they are over inflated you have a smaller contact patch, a rougher ride and accelerated wear in the centers. All bad things.
The max pressure is just for the tire guys to seat the bead, just ignore them.
When they are over inflated you have a smaller contact patch, a rougher ride and accelerated wear in the centers. All bad things.
The max pressure is just for the tire guys to seat the bead, just ignore them.