Originally Posted by
KerryIrons
How hot is it getting in your garage? For reference, if you pump to 100 psi (which is at the high end of what pressure you should be using) at 70 F, and the garage gets to 140 F, your pressure would rise to 112 psi. That should not cause the tire to blow off the rim. You don't explain what you mean by "tubes pop" but it you came out and they were flat with the tire still on the rim, then temperature was not the cause.
Slight quibble- how are you getting 112psi here? I'm getting 115 psi.
70F = 294 K
140F = 333K
ratio = 1.132
100psi => 114.7psi in absolute pressure
114.7psi * 1.132 = 129.9psi
129.9psi => 115psi in overpressure.
Technically it would be more than 115psi in overpressure because the atmospheric pressure would be lower in that heat
(yes I need to get a life)