I have a couple of questions,

What are the normal temps you are seeing when running the car hard at the track (15-25m sessions)?

If your running Hoosiers, what are you attempting to get in terms of hot tire temp PSI? Hoosier notes for the R6's that you should be at 40-42PSI hot on 3000lbs an up.

Is anybody seeing lean conditions when running the car hard? My exhaust tips on my TA are generally white, my GTS which I only street are generally dark in color.