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Support tools | FuelTech Fuel Injector Calculator

Support Tools

Fuel Injector Calculator

Choosing the right injector size is critical for proper performance and tuning. This calculator was designed with racers in mind to give clear and accurate sizing for your horsepower goals.

Injector Calculator
HP
qty
Recommended injector size
How to use
1

Pick your fuel

Select from race gas, pump gas, E85, E100, or methanol.

2

Enter your target

Set your horsepower goal and number of injectors.

3

Get your size

Receive a recommended injector matched to your combination.

Ready to upgrade?

Once you have your sizing, browse FT Injectors — engineered for precision and built for every combination the calculator supports.

Shop FT Injectors