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when they are cold in the morning they are at 32 psi.
I would set them to 30psi cold (spec)..
Here in SoAZ with mine set to 30psi (cold) I've seen mine get to 35psi (warm) during a recent upper 90-degree day here..When it gets to 110 here it should be closer to 36psi...
Get yourself a good tire pressure gauge where you can easily adjust cold tire pressure.
How cold is cold?
At the COS I attended the cold tire PSI's were 24-26 with snow on the ground.
Cold tire pressure = Refers to tires that have not driven on and warmed up...
Cold tire pressure should be checked periodically to assure that the influences of time and changes in seasonal ambient temperatures are taken into account..
Example:
Regardless of ambient temps: If the current ambient temps are 25F set the cold tire pressure to 30psi....If current ambient temps are 90F set the cold tire pressure to 30psi...
Check the build date for your car, cross reference Bowling Green weather almanac. What was the barometric pressure during day of your build? You most likely have factory air in your tires, ask the dealer to flush with fresh air at your first warrantee service.
2025 C8 Z06/7/E-Ray of the Year Winner - Unmodified
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Originally Posted by ak6960
Check the build date for your car, cross reference Bowling Green weather almanac. What was the barometric pressure during day of your build? You most likely have factory air in your tires, ask the dealer to flush with fresh air at your first warrantee service.
The car is not "cold", the tires are then warmed up too. DUUUUUUUUHHH.
Yes...I know that ...DUUUUUUUHHH... Ha!
I didn't say the car was cold! Those 'warm" pressures still seemed exceedingly high even with cold temp setting of 30psi unless outside temps / warm tire temps were > 100F...I should have clarified my statement further...
Point of reference:
Here in AZ our recent temps were in mid to upper 90s with my warm / rolling tire pressures reading 34~35psi with cold tire pressure temps set to 30psi..
If OPs ambient temp that day were in mid 90s then I stand corrected...He also mentioned his cold tire pressures were set to 32psi...
The reviews are mixed with many complaining of getting different readings for the digital model and bleeding down for the dial type. They look like they should work but for 20 bucks I may stick with the tried and true.
Huh? The majority of reviews from buyer's state that it's extremely accurate and reliable...I suspect those very few negative reviews are from those that simply don't know how to use it correctly!
My readings observed on the gauge I have consistently match the reported tire pressure readings...It's been very accurate for me and also allows for you to easily set tire pressures.
Nothing wrong with tire pressures a bit high as long as you don't exceed max pressure hot. (side wall pressure). Your ride may be a bit harder and you milage may be a bit better. The wear pattern will likely be a bit biased to the center of the tire. That said, recommended tire pressure for the Corvette ever since radials were standard has been and is 30 psig cold (meaning not driven for at least two hours). Street use. Track use may be different.
when they are cold in the morning they are at 32 psi.
There's a sticker on your door jam that lists the recommended cold tire pressure. It's 30 PSI all around, not 32.
Originally Posted by ChotisBill
How cold is cold?
At the COS I attended the cold tire PSI's were 24-26 with snow on the ground.
Driving on a race track is different than driving on the street. The tires heat up a lot more, so Ron Fellows school starts with the tires at a lower pressure.