Quote:
Originally Posted by Frank Lee
Note that back in the old days (100 years ago) engines did have quite low compression ratios, like 4:1. And in conventional engines anyway, the more squeeze you put on the mixture, the more bang you get when it ignites, and the more power it makes. So the traditional relationship has been more C.R.=more power.
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This also seems to hold true for the turbine engines as well. Something has to pressurize the air, be it a piston or a supercharger, to get efficient work from the fuel.