I think before the temperature becomes an issue the track will have to be huge and out doors. The sintered rotor can hide over gearing as far as the temp.
Out doors the 13.5 has got to be the most cruise control motor of the century?
I'll check the roll outs with the stock 27 guys tues. I just borrowed a 13.5 the other night, but I'm buying it this week. Maybe I'll test it out some more. That sintered rotor is something else I can tell you that. I have one in my 4300, And my 5.5 Whoa! Great Thread.