UFO -
Quote:
Originally Posted by UFO
There is safety margin from the sidewall pressure, but it varies with manufacturer, manufacturing process and tire to tire. I don't know where you get your confidence in that much pressure over the limit, but I do not share it; I think you are being reckless. Where did you get the burst data? Certainly NOT from the manufacturer, which would be the one source you might be able to trust.
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(CapriRacer, sorry in advance if I am misquoting you)
I agree. CapriRacer commented on Max PSI. I believe that he said something akin to "as long as you drive the way we are driving, sidewall max PSI is ok, but inflation above Max tire PSI is not ok". Here are 200+ posts on the subject :
http://ecomodder.com/forum/showthrea...ires-2582.html
The gist of the argument is that the manufacturer does not *test* the tire above Max rated PSI, so you are "on your own" in terms of whether or not the tire can handle the extra pressure.
I think the GM EV-1 had tires inflated to 50 PSI to aid in reducing rolling resistance :
GENERAL MOTORS EV1 VEHICLE SPECIFICATIONS
http://avt.inel.gov/pdf/fsev/eva/genmot.pdf
Quote:
TIRES
Tire Mfg: Michelin
Tire Model: Proxima RR Radial
Tire Size: P175/65R14
Tire Pressure F/R: 50/50 psi
Spare Installed: No; Self Sealing Tires
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CarloSW2