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Started By
Message
re: OB motorheads- will supercharging a 6.0L V8 gas engine
Posted on 1/26/16 at 9:58 am to Cooter Davenport
Posted on 1/26/16 at 9:58 am to Cooter Davenport
Shall we delve into volumetric efficiency, heat recovery, etc 
Forced induction increased efficiency across the board and will nearly always yield better fuel mileage in the real world if you keep your foot out of it. It takes X horsepower to move said vehicle 60mph and the one with forced induction will do it with less fuel, all else being equal.
Forced induction increased efficiency across the board and will nearly always yield better fuel mileage in the real world if you keep your foot out of it. It takes X horsepower to move said vehicle 60mph and the one with forced induction will do it with less fuel, all else being equal.
2
Posted on 1/26/16 at 10:02 am to DownshiftAndFloorIt
quote:
It takes X horsepower to move said vehicle 60mph and the one with forced induction will do it with less fuel, all else being equal.
Exactly. The one with FI can also run a bit leaner. Most naturally aspirated engines already run super rich. Combine that with direct injection (which lowers combustion chamber temperatures) and you've got a winner.
Posted on 1/26/16 at 10:47 am to DownshiftAndFloorIt
Downy has it much closer to the truth. Depending on the supercharger setup, parasitic losses can be pretty small compared to the decrease in pumping losses.
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