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hpfp

  1. M

    HPFP High Pressure Fuel Pump and tuning

    So im told and keep reading that the HPFP is our problem with getting fuel to the engine to make more power. If i read things right as i learn about HPFP the flow rate increases as RPM increase because the cam lobe can open and close the HPFP piston faster. This means fuel supply is...
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