Without reading this whole thread, I'll just say I like the idea a lot. With a positive displacement reversible pump, such as a rootes blower, we are not limited to windmill efficiencies when extracting energy from the incoming air by replacing the throttle plate. With the pump in place, supercharging can be used to overcome the restriction of a milder, more efficient cam. Since we usually run engines at less than half power, most people would be taking a load off the generator.
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