So, what are you most inclined to do? Is a custom exhaust header totally out of question? And what are the gains you're looking to get from this heat exchanging? Do you think it would also improve emissions?
Quote:
Originally Posted by EcoCivic
You gain efficiency because you are still circulating coolant through the engine with the thermostat closed, just not through the radiator.
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Even with most of the coolant flow not going through the radiator while the thermostatic valve is closed, at least a small amount will always circulate through the radiator, otherwise there would be a vacuum buildup inside the radiator tubes which would shut them.