New ai/cmc tire thread

[Supercharged111]

It probably depends on the load the tire sees. Mike's car with full aero likely puts significantly more load on the tires than a CMC car. A few degree temperature increase due to higher load per heat cycle might make them drop off much more dramatically, just a hypothesis. So when comparing across platforms it could be both. Tyler is seeing potential better life on the Miata.

I'm assuming the tires are 'curing' with heat cycles, (i.e. getting harder, would last longer rubberwise but have less grip). Does the length of the heat cycle matter? If you over cook a set by trying to pass Jerry for 10 laps can you use them up in one race by getting the tire temp to 250*F? If you don't get them up to 220* (max recommended temp) is it a partial cycle? Clearly, I don't understand tire design.

- Josh

Every time I've probed my RRs they're in the 140s, even post Hallett final. Granted I probe them back in the pits when I get out of the car and not trackside, but still I never get them as hot as Toyo recommends unless my probe sucks?

[Sook]

Every time I've probed my RRs they're in the 140s, even post Hallett final. Granted I probe them back in the pits when I get out of the car and not trackside, but still I never get them as hot as Toyo recommends unless my probe sucks?

Tire temps drop fast, even one turn to a next they can change pretty dramatically. We had live IR temp probes looking at wheels on our FSAE car for test and tune. Not our car, but same idea: http://sine.ni.com/cs/app/doc/p/id/cs-722#

[Supercharged111]

Tire temps drop fast, even one turn to a next they can change pretty dramatically. We had live IR temp probes looking at wheels on our FSAE car for test and tune. Not our car, but same idea: http://sine.ni.com/cs/app/doc/p/id/cs-722#

An IR probe measures the surface temp though. I know that changes very quickly, but the pokey probe that goes in gets a better idea of what went on all session long. Again, never checked balls hot without a cooldown lap. One of those things I always forget about and never seem to have a body around to do for me.

[Cody Powell]

Every time I've probed my RRs they're in the 140s, even post Hallett final. Granted I probe them back in the pits when I get out of the car and not trackside, but still I never get them as hot as Toyo recommends unless my probe sucks?

Dude you are wasting your time probing tires or checking pressures in the pits.

[mach1]

Dude you are wasting your time probing tires or checking pressures in the pits.

I disagree, the data isn't the same but it's still useful (mainly deltas)

[Supercharged111]

I disagree, the data isn't the same but it's still useful (mainly deltas)

^^^ This was mainly what I was after. Now I'm curious as to how hot I'm actually getting them.