alright... my buddy blew up his y80 gsr trans about a mothn ago and we have been waiting for the type r 1 he order to replace it.... i put it in filled it everything, but now the car overheats???? it goes from a normal reading to nasty hot and then back again... it cycles kinda, im thinking the thermostat is stuck open or jsut fucked..... any input would be nice, thanks guys