Fox + Son Jetmax

1.0.3

Trophy Inc.

0.00

0 reviews

100+
Downloads

Free

Calculate jetting for Rotax engines based on weather and altitude.

iOS version

About Fox + Son Jetmax

Fox + Son Jetmax is a sports app developed by Trophy Inc..

Download Statistics

Fox + Son Jetmax has been downloaded 120 times. In the last 30 days, the app was downloaded 15 times. It is ranked #129 in sports.

User Ratings

The app has no ratings yet.

App Information

Fox + Son Jetmax is FREE to download. The APK download size is 19.04 MB. The latest version available is 1.0.3. The last update was on March 31, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play September 2025.

Description

Precision jetting made easy — This app helps you calculate jetting for Rotax engines based on weather and altitude.

Now every Rotax racer has access to the same jetting Fox + Son has used to power our engines to countless Rotax National wins and Grand Finals tickets. After many months of development and testing, we have successfully brought the same jetting algorithms we use on our dyno to a quick, easy-to-use app. We have also included all of our popular Rotax tuning tips that are found on our website, along with a handy interactive gear chart for your convenience. As we do with our website, we will continually update the app as we discover new tuning information. Anytime a new cylinder or part is introduced, all of the testing we do at the shop will flow directly to Jetmax.

Jetmax will also calculate the relative horsepower for that atmospheric condition. The relative horsepower percentage is helpful information to have when selecting your gear ratio. In certain situations you can benefit from increasing your gear ratio when HP is low & decreasing your gear ratio when HP is high.

Whether you're competing at the track or fine-tuning your kart for practice, Jetmax gives you accurate, reliable recommendations so you can focus on performance.

Features:
- Jetting calculator for Rotax engines
- Calculates relative horsepower
- Includes an interactive gearing chart

Engineered by racers, for racers — Fox + Son Jetmax App delivers the tools you need to stay competitive on race day.

*A valid subscription is required in order to use this app

Recent changes:
-Added "US Spec Micro" engine type
-Optimized jetting for longer tracks

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More data about Fox + Son Jetmax

Price	Free to download
Total downloads	120
Recent downloads	15
Rating	No ratings
Ranking	Medium ranked
Version	1.0.3
APK size	19.0 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

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Fox + Son Jetmax compared with similar apps

Common keywords of similar apps

Jetting Rotax Jetmax Engines Gear Fox Son Tuning Relative Based Easy Testing Website Interactive Chart Information Racers App Calculate Horsepower Ratio Weather Altitude Hp

Keywords missing from this app

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Downloads over time

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Fox + Son Jetmax has been downloaded 120 times. Over the past 30 days, it has been downloaded 15 times.

Changelog of Fox + Son Jetmax

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Developer information for Trophy Inc.

Trophy Inc.

support@trophyapp.net

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Google Play Rankings for Fox + Son Jetmax

Top rankings

Rank	Country	Category	List
129	Germany	Sports	Top Grossing

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Ranking history in Germany

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Technologies used by Fox + Son Jetmax

11 permissions

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