Fuel Injector Size Calculator

Calculate required fuel injector size. Free, instant.

How to Use Fuel Injector Size Calculator

1

Enter target HP and BSFC.

2

Enter cylinders and duty cycle.

3

Get injector flow rate.

Frequently Asked Questions

What is BSFC?

Brake Specific Fuel Consumption. NA engines: ~0.45-0.50, turbo: ~0.55-0.65 lbs/hp/hr.