[wakespeak]

Just mounted them on the front with 285/35r19. Fingers crossed. They do seem to be a little firmer in the sidewall and I am hoping they hold up better. Next track weekend is 6/24-6/25 at TWS.

I started with super sports which chunked and corded on the outside after 6 track days. Still have them on the rear. Basically you need to start at more like 32 or even 34 psi cold and let them get to 38-39 hot, or they rollover. Also, you need camber maxed out at 2deg IMO to avoid my experience. So $700 later I have the MP4S on the front. Friend with MPSS 305s on a GT350 has none of the same issues and tires holding up fine posting very fast track times. I wonder if the 305s have different sidewall construction or they are just handling the weight better. He starts cold 29 psi which gets to 36-37 after the run.