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Thread: how to calculate total fuel flow ?

  1. #1
    Tuner in Training Ag_Sky's Avatar
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    how to calculate total fuel flow ?

    Is this right?

    From scanner:
    IFR = 43.81 lb/h
    InjDC(%) = 77.0 %

    fuel flow per cylinder = IFR x InjDC = 33.73 lb/h
    total fuel flow = 4 cylinders x flow per cylinder = 134.93 lb/h

    Your input will be appreciated.

    Thanks!
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  2. #2
    Senior Tuner cobaltssoverbooster's Avatar
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    are you trying to be scientific with the information fed back? if no, then that should get you close enough as long as the injector is operating within its linear region.
    2000 Ford Mustang - Top Sportsman

  3. #3
    Tuner in Training Ag_Sky's Avatar
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    Not sure what you mean by being scientific but, I'm trying to calculate the fuel flow and compare it to the MAF rate. If understand how the PE fueling mode works, it uses the MAF rate and the EQ Ratio to calculate the fuel.
    2008 Saturn Sky LE5 Automatic
    Custom Hypercoil Coilovers
    375 # Front 425 # Rear
    Koni SA shocks
    Solo Performance Exhaust
    DDM Stage II Super Charger
    HPTuners Calibration (working)

  4. #4
    Senior Tuner cobaltssoverbooster's Avatar
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    If this was R&D lab experiment it would not be an accurate fuel flow equation.
    For the purpose mentioned it should be fine.
    2000 Ford Mustang - Top Sportsman