Quote:
Originally Posted by Frank Lee
There will be tremendous heat losses from the air charge to the intake tract, valves, head, pistons, and cylinders; I don't think 150w will do it.
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One could make much the same argument for using engine coolant for heating intake air - with the added proviso that the intake air being sucked in is also sucking the heat out of the coolant that the engine would need to warm up to operating temperature, thereby lengthening engine warmup times.