Both at 185HP. Looking for the gal/HP/hr numbers. This is done in a lab under controlled conditions. Nebraska Tractor Tests do this. I want to compare fuel consumption between the two engines. One having much larger displacement. One having HUI fuel system versus mechanical fuel pump. Same application
Guess it's technically hp-hr/gal
Can't help you with your question but Specific Fuel Consumption is usually quoted in pounds/BHP-hr Factory dyno test results usually have that information.
I'm not sure if it is the right information but the engine tags always specify mm3/stroke of fuel at max power. So a little math and you have something like a fuel consumption per hour number.
seven pounds per gallon as a quick figure for calcs.