Fastime Performance Fuel Injector Size Calculator
Injector size per cylinder based on horsepower, BSFC and duty cycle.
Injector Sizing Result
Per Injector
36.8 lb/hr
lb/hr at chosen duty
Per Injector
386 cc/min
cc/min (approx)
Suggested Common Size
36 lb/hr
Rounded to nearest typical size
Injector lb/hr per cylinder = HP × BSFC ÷ (Cylinders × DutyFraction).
cc/min ≈ lb/hr × 10.5 (gasoline, approximate).