Michelin Sport Cup Tires

[PTAddict]

Originally Posted by CraigMorrison

We used these tires on our 3G Vette project. The one big issue is getting enough heat into the tires. Even during the PHR testing we couldn't get the tires into the operating heat range. Temp is 160 and he best we could do was 140. Even at 140 they were awesome, but that was as hot as they got.
When cold or on cold roads, they will break loose at will, so be careful. Art spun the Vette out in the middle of a road, and Kyle almost took out his DSE shop sign because of cool tires. Just our experience.

What about the BFG R1 tire?

I completely agree with PTAddict's comments!

I never got them to 160 either, at least by the time I put the pyrometer in them in the pits after a session and cool down lap. 138 or so is the highest I've seen.

I've not run them in an autocross, but I can't see how you would get enough heat into them in a typical auto-x to make them effective. You'd be better off with a dedicated auto-x tire from Hoosier or similar.