11-19-2009, 01:55 PM
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#6 (permalink)
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A True Z Fanatic
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
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Quote:
Originally Posted by WhiskeyHotel
He also mentioned that an under-inflated a tire has a compromised speed rating.
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Actually even a properly inflated tire can have a compromised speed rating. Typically the inflation requirements increase with speed as well as load to reduce the amount of sidewall flex and hence heat. But that's for sustained speeds above 120 mph.
Here's a decent article on tirerack.
Tire Tech Information - Air Pressure/Load Adjustment for High Speed Driving
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