Quote:
Originally Posted by Paul Dobbin
I run thermostats in all my flathead V8's on the theory
that they slow down the water flow, allowing the water to
cool down the engine by spending more time in the radiator
before going back into the hot engine. Thoughts?
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I don't know anything about fluid dynamics, but I think that theory about slowing the flow is an old wives' tale. If a molecule of water spends twice as much time in the radiator, it will also be making half as many passes thru the radiator.