engine getting hot when turbo's running?


hello. I've just put a turbo diesel in my fourtrak and it runs great, until the turbos run for about a minuet or so and it starts to overheat. i'm almost posetive the pump has been turned up, could this have anything to do with it? it dosn't use any water or oil so don't think its the head (fingers cossed). greatful for any ideas .Sam.