BCSnob wrote: Okay, I've thought about it. Here's one for you. On drag racers do the tires burn from the outside in or the inside out (due to heat from friction just like on an airplane)? There is more air circulation on the outside of the tire which should be cooling the rubber faster than on the inside of the tire.
Mark
Mark,
Yes the outside edge of the tire/rubber is the hottest spot... that is where the majority of the heat is generated...so it will always be hottest at the heat source.
Yes the outside air will dissipate the heat faster than to the inside.
A higher rate of cooling (HEAT FLOW) to the outside doesn't mean that the outside edge will be at lower TEMPERATURE.
Not sure what else you are getting at or seem to have a problem with????
Constructive disagreement is encouraged. It is how I/we learn!
BCSnob wrote: Okay, I've thought about it. Here's one for you. On drag racers do the tires burn from the outside in or the inside out (due to heat from friction just like on an airplane)? There is more air circulation on the outside of the tire which should be cooling the rubber faster than on the inside of the tire.
Mark
Drag racer's tires are burned off from the outside in. That's one of the reasons we use nitrogen...the immediate temp increase does not affect tire pressure, which in our sport is measured in fractions of a PSI. The purpose of the burnout is to clean the tires and give them a tacky, sticky surface in order to prevent spinning them at launch.
She goes really REALLY FAST
2002 Rexair 40' DP Cummins 400HP with Banks
Suzuki GS 290HP Top Gas Dragbike, 0-180mph in 7.5 seconds
Suzuki GS 230HP Bracket Dragbike, 0-150mph in 8.5 seconds
Enclosed race trailer, A/C, gen, compressor, mini-shop
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