INJECTOR SIZE CALCULATOR

This is a guide only meant to put you in the ballpark of the injector size you need

Please consult the person tuning the car before choosing injector sizes

Shop Excess Fuel Injectors by vehicle make

About our Injector Calculator

Our injector calculator eliminates the guesswork when choosing the right injector size for your engine. It provides a data-driven recommendation based on your specific modifications and performance goals. Simply input key details about your engine's current setup.

Once you've entered all the necessary details, our injector calculator will analyze your data and recommend an injector flow. This ensures you get the optimal balance of fuel delivery and performance without sacrificing efficiency or drivability.

Don't settle for generic recommendations – take control and unlock your engine's true potential with the Excess Injector Calculator!

Fuel Flow Units Guide

To ensure accurate injector calculations, understanding different fuel flow units is essential:

g/min (grams per minute)

A measure of mass flow rate, indicating the amount of fuel (in grams) passing through a point in one minute.Frequently used in engineering applications.

cc/min (cubic centimeters per minute)

A measure of volumetric flow rate, representing the volume of fuel (in cubic centimeters) passing through a point in one minute. Widely used in automotive and fluid mechanics due to its direct correlation with engine displacement.

lb/hr (pounds per hour)

A measure of mass flow rate, indicating the amount of fuel (in pounds) passing through a point in one hour. Predominant unit in the automotive industry.

Our injector calculator can handle conversions between these units, providing flexibility in your calculations.

Fuel Type Considerations

E85

Due to its lower energy content compared to gasoline, E85-powered vehicles require larger injectors to achieve the same power output. Our calculator takes E85 into account for accurate recommendations.