Originally Posted by
Jonnykane
it doesn't actually matter about the thermostat. all that does is hold the water in the head till its up to temp, take it out and you get longer warm up but better flow as the waters heating, smoother and all round better for the engine. rather than the water get up to temp and then the thermostat opening to letting the water through and then cold water entering the head again. you 'll find you get better flow too by taking it out, what does matter is having a low temp fan switch and a more powerful fan to cool it as your running!!!