Quote:
Originally Posted by WildBillyT
Interesting. I had always thought that the thermostat was necessary to slow down the flow of coolant in the system so it could radiate properly out the radiator. Without one the coolant goes back to the engine before it gets a chance to cool down as much, so the engine will actually run hotter than it would with a low temp thermo.
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this is correct. too much flow wont allow enough time for the coolant to cool off inside the radiator, so that steady flow will slowly but surely keep getting hotter and hotter til it overheats anyway