Pulley Diameters

Dana67Dart said
if your thermostat is missing or wide open it is possable that the coolant is moving too fast and not pulling enough heat out

T'stat is a 180* & checked in a pan of water before installed. Lower hose has spring & running a 17" Mopar clutch fan w/ a shroud. 3 core Mopar radiator.

Anything is possible though...it is a Demon LOL :)

mbaird said
I underdrive the waterpump.
My theory is that at high rpms the pump could cavitate or like Dana67dart said move the coolant too fast for it to disapate heat.
Just my unedumacated highpotheadthese though....

I like unedumacated guesses....seems like I'm good at those :BangHead:

So when you underdrive the WP, your WP pulley is larger than the crank pulley correct??

I hate this, but am determined to fix it!!!!