You are talking about eliminating the gasoline engines isobaric intake expansion (throtteling).
The easyest way to do that is relocate your otto engine to the junk yard and put a turbodiesel in its place.
That would replace your isobaric expansion with double isentropic compression (through the turbo charger compressor and maybe a little isobaric heat rejection through the intercooler, then into the cylinder for compression).
On a gas engine you play a limited game mostly around the throttle plate.
On a turbodiesel the concept is simple: stuff more air into the engine all the time, get better milage and more power.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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