Automotive / Fuel

Injector Flow Calculator

Estimate supported horsepower or size injectors for a target using configurable fuel assumptions.

Fuel system

Injector flow per injectorFlow unitInjector countMaximum duty cycleBrake-specific fuel consumptionTypical petrol values are roughly 0.45–0.65.Fuel densityPetrol default: 0.745 g/mL.

Injector sizing result

Supported crankshaft power368.6 hp

184.28 lb/hr fuel at selected duty

Supported horsepower: 368.6 hp
Flow per injector: 550 cc/min · 54.2 lb/hr
Total fuel rate at duty: 184.28 lb/hr

This is a planning estimate. Confirm injector characterization at operating pressure, fuel composition, regulator reference, electrical dead time and the engine tuner’s required safety margin.