Injector Size Calculator

Estimated Rate for Combustion Engines
50%
36.46

Terminology & Formulas

BSFC:

Stands for 'Brake Specific Fuel Consumption'. It measures an engine's fuel efficiency—the rate of fuel consumption divided by the power produced.

Duty Cycle:

The percentage of time the fuel injector is open and flowing fuel. For optimal engine safety and injector lifespan, the duty cycle shouldn't exceed 80%.

Injector Capacity Formula:

(Horsepower × BSFC) ÷ (Number of Injectors × 0.80)