Quote Originally Posted by bluehaze View Post
Well cars have thermostats to regulate flow of water through engine seperate from the radiator so it might not be so cut and dry. Has anyone ever actually tried it?
A thermostat is used to help warm the engine up to operating temperature faster to reduce wear, NOT to aide in cooling. Engine tolerances are built around a constant temperature and the thermostat help to achieve that. Thermostats actually detract from an cooling systems ability to cool.