Knowledge Base:  
What size fuel injectors do I need?
Last Updated: 03/26/2018
This is one of the most common questions when starting a build and the great news is there is not any reason to guess as the injector size will be dictated solely by the power you want to make and the fuel you want to run. There are several great fuel injector calculators out there.

Comprehensive Calculator:

Simple Calculators:

Please keep in mind that there are many other factors involved in choosing an injector (brand, orientation, fuel pressure, lines, rails, pump, FPR, tuning requirements) so the online calculators should only be used as a starting point. Please consult your tuner or an IAG sales professional to help choose a complete fuel system package.

Was this article helpful?