odd heat problems with the LS10

[rootar]

well today i was running at the track after i finished a little rebuild on it and it was completely the same setup as before when i could run 45 minutes and not even have any temps above 115 the only thing different from the last trip was i added half inch taller tires (badlands) but i dropped from a 15 to a 13 pinion to compensate for this. plus today it was 85 degrees instead of 70 degrees i also turned the punch control up to 70% from 30% (trying to make it more driveable)

today i only ran 25 minutes not very hard and i got an odd plusing like it would begin to jump forward and then kinda shut down when i mashed on the gas hard as if i was hitting the lvc since my steering would still work all due to the bec, i pulled it off the track and pull the body off, and the mm was pushing 175 and the motor was 180 also ??????????? no funny smells but i called it quits i got back home and threw the battery ont he charger to fins it was still showing 3.68v per cell and didnt have any lower than the other it was warm when i pulled it off the track at only 102 degrees

whats up? the drivetrain is free, no binding and nothing different i have never seen high temps before...........and yes the gear mesh is right and no shorts everything, could my motor be about to take a dump on me or did something maybe come unsolder or broke on the board in the mm???? this thing take some HARD licks, idunno if thats possible to what , anyone have anyideas?