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If 30% of the energy in gasoline is wasted keeping the engine cool, can something like a "mesh" hood help mpg? Something made out of a material that allowed heat to rise up through it yet keep most of the passing air from creating drag would be perfect.
Imagine your car without a hood on. All the heat from the engine could rise out of the opening.
You could even go as far as putting heatsinks on the engine.
Anyone want to try this out?
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