New tires, installer recommends 45 PSI - too high?
#1
New tires, installer recommends 45 PSI - too high?
Just bought a set of 215/50ZR-17 Bridgestone Potenza RE960AS Pole Position XL (max pressure 50 PSI).
W/ the XL (heavy load) 95W rating, and stiff sidewalls, the installer recommends pushing the pressure up to 90% of maximum (i.e. 45 psi).
Any thoughts on this % for such a high performance tire - what would you recommend and on what information?
W/ the XL (heavy load) 95W rating, and stiff sidewalls, the installer recommends pushing the pressure up to 90% of maximum (i.e. 45 psi).
Any thoughts on this % for such a high performance tire - what would you recommend and on what information?
#2
You should put whatever tire pressure the car recommends. i believe its 32f and 30r but its on the inside of the drivers side door. where did you get the tires installed? i never heard that before. its not going to be a nice ride either with 45psi
http://www.tirerack.com/tires/tirete...¤tpage=2
"Check and Adjust First Thing In The Morning. Set according to the vehicle manufacturer's cold tire pressure(s) recommended on the vehicle's tire placard or in its owner's manual. This must be done before rising ambient temperatures, the sun's radiant heat or even driving short distances temporarily warms the tires."
http://www.tirerack.com/tires/tirete...¤tpage=2
http://www.tirerack.com/tires/tirete...¤tpage=2
"Check and Adjust First Thing In The Morning. Set according to the vehicle manufacturer's cold tire pressure(s) recommended on the vehicle's tire placard or in its owner's manual. This must be done before rising ambient temperatures, the sun's radiant heat or even driving short distances temporarily warms the tires."
http://www.tirerack.com/tires/tirete...¤tpage=2
#7
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Originally Posted by TSX Wisc Badger
I rock 35 all around Nitrogen filled on my Proxes 4's.
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#8
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Originally Posted by hunterk1
Sorry to be OT, but what advantages exist to running Nitrogen? Volume for volume it is 97% of the mass of air - so there's no advantage there...
The tire guys told me that nitrogens molocules are larger in mass and reduce the fluxuation in PSI between having cold tires and warm tires to nearly nothing. My tires are like 34 cold and 35 warm instead of a jump like 32 cold 36 warm. Plus they don't leak overtime as much as regular air does.
#13
Tire pressure is a compromise between longer tire life and ride quality.
Higher pressure (within limits) = less wear, harsher ride, more precise handling.
Lower pressure = more wear, softer ride, less precise handling.
Lower aspect ratio tires might require slightly higher tire pressure, but I can't imagine routinely running more than 35 psi in a street tire.
Higher pressure (within limits) = less wear, harsher ride, more precise handling.
Lower pressure = more wear, softer ride, less precise handling.
Lower aspect ratio tires might require slightly higher tire pressure, but I can't imagine routinely running more than 35 psi in a street tire.
#14
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the only drawback with nitro is you cant just go to the gas station to top it off when you need to... and i got my tires in chicago... kinda a long haul just to fill um up.
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