Tire Pressure-Altitude v/s Temperature??

[dspithaler@...]

Don I'm running the Pressure Pros on mine this year to. On my way home
from FL I started with 100 psi in the front in the morning & they went to 118
psi. The tire temp was 124 degree with my temp gun. The out side temp was
only about 70. I want to see what it does when it gets hot. I didn't notice it
changing in the mountains of VA
Don
89 SP 36'
Butler, PA

run tire pressure monitors that can show me the pressure under way. Not
uncommonly, tires inflated to 100psi at 70 degrees will show running pressures
of
120psi. if that is entirely due to temperature rise, the temps would have to
go up 20%, is that true? That would be from 294 degrees K to 353 degrees K,
or 176 degrees F. Is it possible that the interior of my tires get that hot,
or is something else at work?

The tires on my toad typically increase only 10%, from 33 to 36ps, which
would correspond to running temps of 122 degrees F.

Don Bradner
90 PT40 "Blue Thunder"
Eureka, CA







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