mvivion
FOUNDER
Bozeman,MT
Cruise fuel consumption is dependant on horsepower USED, not horsepower available.
With all the engine/prop combinations out there, and differences in these "Precision" carburetors, it's really difficult to predict precisely the fuel consumption between engines.
Theoretically, at least, an O-360 and an O-320 running at the same BHP setting (not same percent power) SHOULD burn the same amount of fuel. The problem is that there are so man variables with props and carburetor setups that it's hard to calculate percent power for some of these setups.
My experience has been that O-360's generally burn a little more fuel in cruise, but that may well be due to the nut between the headsets USING more of that power available.
MTV
With all the engine/prop combinations out there, and differences in these "Precision" carburetors, it's really difficult to predict precisely the fuel consumption between engines.
Theoretically, at least, an O-360 and an O-320 running at the same BHP setting (not same percent power) SHOULD burn the same amount of fuel. The problem is that there are so man variables with props and carburetor setups that it's hard to calculate percent power for some of these setups.
My experience has been that O-360's generally burn a little more fuel in cruise, but that may well be due to the nut between the headsets USING more of that power available.
MTV
