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Each engine has a BSFC and BSAC fingerprint.
BSFC can only be measured on a dyno. The formula is: BSFC = lbs. of fuel used per hour ÷ horsepower For example, a 300hp engine using 150 lbs./hr. of fuel would have a BSFC of 0.5. Different engines using different fuel types will have different BSFC values.
Well how much fuel is my 03 Ford Explorer 4.6 in 5th gear (overdrive) into a 3.73 rear end using when I drive it at 49MPH which is 1500RPMs and it shows it is getting 30MPG?? Steady running…how much HP and torque is it making?
Also same question for a 2000 Mercury Grand Marques, Well how much fuel is 4.6 in 4th gear (overdrive) into a 3.27 rear end using when I drive it at 65MPH which is 1700RPMs and it shows it is getting 30MPG?? Steady running…how much HP and torque is it making?
Same car running a 16.4 A/F ratio gets 35MPG same specs.
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