Air pressure for the finicky
01-12-2007, 12:39 AM
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2015 S212
Air pressure for the finicky
What pressure does everyone run on cold tires? What does that become when they are heated? I would prefer numbers for PS2s on OEM rims, but any numbers will be great.
01-12-2007, 02:11 AM
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SL/M6
I always run 4psi more up front on the SL with 20's....like 36-32 cold......people in the know seem to say that its better then the MB more PSI in the rear standard directions. ???
01-12-2007, 02:49 AM
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Jangy,
Run 2-3 more psi up front than in the rear. Depending on how firm you want the ride and your allignment specs you can go up to say 42 front cold.
I normally set it around 38 front cold and 36 rear. This makes it about 42 and 40 when warm and thats enough to make the car seem more nimble.
For say track driving you will likely want it to be mid to upper 40's when fully warm. Anything over say 48 is just to much and you start losing contact patch and steering feel.
If you run more camber you will not need as high a tire pressure since the side wall will roll over pressing the whole tire into the ground instead of the tire folding onto the side wall.
Warm 38/36 seems to be a good figure.
Run 2-3 more psi up front than in the rear. Depending on how firm you want the ride and your allignment specs you can go up to say 42 front cold.
I normally set it around 38 front cold and 36 rear. This makes it about 42 and 40 when warm and thats enough to make the car seem more nimble.
For say track driving you will likely want it to be mid to upper 40's when fully warm. Anything over say 48 is just to much and you start losing contact patch and steering feel.
If you run more camber you will not need as high a tire pressure since the side wall will roll over pressing the whole tire into the ground instead of the tire folding onto the side wall.
Warm 38/36 seems to be a good figure.
01-12-2007, 09:36 PM
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2015 S212
Jangy,
Run 2-3 more psi up front than in the rear. Depending on how firm you want the ride and your allignment specs you can go up to say 42 front cold.
I normally set it around 38 front cold and 36 rear. This makes it about 42 and 40 when warm and thats enough to make the car seem more nimble.
For say track driving you will likely want it to be mid to upper 40's when fully warm. Anything over say 48 is just to much and you start losing contact patch and steering feel.
If you run more camber you will not need as high a tire pressure since the side wall will roll over pressing the whole tire into the ground instead of the tire folding onto the side wall.
Warm 38/36 seems to be a good figure.
Run 2-3 more psi up front than in the rear. Depending on how firm you want the ride and your allignment specs you can go up to say 42 front cold.
I normally set it around 38 front cold and 36 rear. This makes it about 42 and 40 when warm and thats enough to make the car seem more nimble.
For say track driving you will likely want it to be mid to upper 40's when fully warm. Anything over say 48 is just to much and you start losing contact patch and steering feel.
If you run more camber you will not need as high a tire pressure since the side wall will roll over pressing the whole tire into the ground instead of the tire folding onto the side wall.
Warm 38/36 seems to be a good figure.
That is why I ask. My tires got really hot (maybe from the brakes, too) and pressure was WAAAAY past 50 right after a set of laps at Willow. I never bothered checking them prior to the run. I wasn't even planning on running the E. I thought we would just ride in the Lotus cars, and then they asked if I wanted to chase the Z06, so I just went out.
