No increase in temp after my race, my engine was coming off at 170 to 180 on a exergen temp gun. I raced on a smaller indoor track, I say the temp inside was about 65*f.
Just remember with the engine's tight pinch warm the engine up before you start it and get the temp up before you tune. 3+ gallons and my engine is tight as hell. Im going to put a rod in it as soon as I can get one, this engine is fantastic. I can't wait to get my modded JL .21 (same as K9) from Maximo @ Clockwork Racing Engines!!!!