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Originally posted by SkyKing … which is why some of us have the intercoolers to begin with ... better efficiency of the engine.
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I think all will agree that intercoolers improve engine efficiency, but I'm not sure we all agree on what "efficiency" means.
In this case, I’d define efficiency as the fact you are getting more HP for the same RPM & MP due to the denser intake air. Or in other words, you can achieve the same HP output using a lower RPM and/or MP.
I think you’re saying that the efficiency comes from getting more airspeed for the same given HP. This defies physics. For a 225 HP engine, 75% power is 169 HP with or without intercoolers. The airspeed you achieve at 75% HP is not related to intercoolers.
You should be suspicious of the intercooler charts. If you’re getting more airspeed, then you have to be creating more HP.