Calculate horsepower based on injector size.

This Injector Rx  “Calculate horsepower based on injector size” calculator will allow you to calculate how much horsepower or KW a specific fuel injector can support. Variations such as Natural Aspirated, Turbo or supercharged, or specific type of gasoline, can be used.

Note: Calculation is based on fuel pressure of 43.5 psi = 300 kpa = 3 Bar