Inject Based Pump Flow Calculator

DETERMINE FUEL PUMP FLOW REQUIRED TO SUPPORT INJECTORS

Enter Injector Flow Rate at 3 Bar (43.5 psi) cc/min
Enter Maximum Injector Duty Cycle %
Enter number of injectors
Base Fuel Pressure psi
Boost pressure (enter 0 if naturally aspirated) psi
Choose a fuel pump that can flow LPH at psi   if using a vacuum referenced fuel pressure regulator
Choose a fuel pump that can flow LPH at psi   if NOT using a vacuum referenced fuel pressure regulator

*A 10% safety factor has been added to the flow rate to account for possible line losses.
*Results are the recommended minimum flow rate required to support the injectors.
*Battery voltage should also be considered when selecting a pump.