Aerochargers are better than a twin screw!! hahaha ;-)

[Stephen Webb]

> Yes, a turbo makes more backpressure--but it DOES let the overall package
> operate at a higher expansion ratio. A mechanically driven supercharger

Could someone explain (or point me to a reference that does) what
expansion ratio is / means, and how a turbo affects this property
differently than a supercharger?

Thanks

-Steve


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