tire pressure, but dont judge yet...
05-18-2010, 04:14 PM
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ok so i did a little bit or searching and all i can find was how much psi to put in when cold. but the question is, how much does it increase after driving? here in my area it gets to 100 during summer time. 245/35 and 275/30 with 35F and 40R. its not hot this last couple of days, but id still wanna how much psi i should be running during summer time.
heres my questions;
how much does it increase?
does it increase less when its 80 compared to 90 or 100 or is it the same?
how about in cold weather, lets say around 40-50, does it decrease or just stay the same, or increase a little bit after driving?
i know theres a lot of knowledgeable people here in the forum. this is not so much of a issue, more like a peace of mind answer. thanks everybody!
heres my questions;
how much does it increase?
does it increase less when its 80 compared to 90 or 100 or is it the same?
how about in cold weather, lets say around 40-50, does it decrease or just stay the same, or increase a little bit after driving?
i know theres a lot of knowledgeable people here in the forum. this is not so much of a issue, more like a peace of mind answer. thanks everybody!
05-18-2010, 04:19 PM
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I always assume that the factory recommended tires pressure at cold temperature is good enough since the tires max psi rating will be much higher. Of course if you have different size wheels, then the pressure will have to be adjusted accordingly.
Sorry, can't be anymore helpful.
RCT
Sorry, can't be anymore helpful.
RCT
05-18-2010, 04:48 PM
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for every 10 degress outside temp change , the air in tire will change 1 psi. so if it's 32 psi @ 80F, then it's 33psi @ 90F.
also i believe they increase around 3-4 psi when warm. easy way to check is set your tires when cold then drive for a while and re-check them right away.
also i believe they increase around 3-4 psi when warm. easy way to check is set your tires when cold then drive for a while and re-check them right away.
05-19-2010, 03:10 AM
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My Ride: 08 550 Carbon Sport Almost everything factory, but no sound upgrades.
The air we use in tires is about 78% Nitrogen. Thus the value of nitrogen may be exaggerated in tires used for normal automobile road use. BTW, nitrogen also is a gas and the various gas laws apply to all gasses to some degree.
Also when thinking of tire pressure, the temperature v pressure relationships expect a constant volume. Tires are not a constant volume so again, the temperature v pressure effect may not be as expected.
Do a search of the forum. There have been several threads on the subject.
sixcard
Also when thinking of tire pressure, the temperature v pressure relationships expect a constant volume. Tires are not a constant volume so again, the temperature v pressure effect may not be as expected.
Do a search of the forum. There have been several threads on the subject.
sixcard
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