MFI Calc

Help Section

The navigation at right will direct you to various information sources regarding using this site.

Please contact us with any questions.

Help: Videos - Advanced


We have recently created a series of videos to demonstrate how the effectively use Pro-Calc. Watch the videos below in order to see the basic use of the site in action.

We are just learning how to do these videos and are still working through our mistakes. While we hope you are able to get something out of the following videos, we also plan to improve them over time.

Jetting for high altitude

When you race at different tracks, the elevation change can affect the amount of air going to your engine. You can set up 2 baselines to control your jetting at a lower elevation and a higher elevation. Learn more about elevation influences barometer.


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Torque Peak and Horsepower Peak

One method of tuning is to create a baseline for your torque peak and horsepower peak, or with and without your highspeed bypass activated. Learn more about this concept here.


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Adding nitro to blown engines

If you race with methanol and want to add small percentages of nitro, you will need to factor in a lower air fuel ratio. You can set up a baseline for your straight methanol setup and a second one that factors in methanol with nitro and maintains a different air fuel ratio. Learn more about nitro here.


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Adding nitro to NA engines

If you race with methanol and want to add small percentages of nitro, you will need to factor in a lower air fuel ratio. You can set up a baseline for your straight methanol setup and a second one that factors in methanol with nitro and maintains a different air fuel ratio. Learn more about nitro here.


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High speed poppet pressure

ProCalc can be used to determine the pressure to set your high speed poppet. Learn more about pressure here.


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Adding boost

We are starting to learn how to use ProCalc to determine jetting for boost. This video demonstrates a setup that can help calculate boost.


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