roadster tire pressure

[CWPASADENA]

Originally Posted by nkaminar

The chalk line that Katy talks about seems like a good test. The IR temperature probe that I talked about in Post #4 is essentially the same test. The tread temperature should be the same across the tread after a run on a highway. I am not sure how the temperature profile would be effected but guess that an over inflated tire would be hotter in the center. On race cars the temperature profile is used to set up the caster. After a series of hard cornering the profile is taken and the caster adjusted for uniform temperature across the tread.

Yes, we do use tire temperature to help set up a road race car but we had to take the tire temps immediately after coming off the track. If we went back to the pits, the tires would cool enough to lose the information we were looking for. We also used a lot softer compound rubber which would generate more heat when driven hard.
I do not think a Model A on hard street compound rubber would ever generate enough heat to get any kind of a temperature profile to be of much help.
I would think the "chalk" method may yield better information.

My experience,
Chris W.