Log Dyno - Onboard Horsepower and Torque CSV Dyno

There has never been an easier way to measure your car's torque and horsepower, Datalog one of your pulls in a given gear, and Dyno your car straight from your mobile device onboard.

You can use any CSV or MSL file that contains RPM data to measure Horsepower and Torque, it works flawlessly with MHD, JB4 and MegaSquirt logs, and since they have auto-logging they are very convenient.

This is the easiest way to have your car measured with a virtual dyno, right after data logging. See how your mods or tune work right away.

★Log Dyno has been compared to multiple real life dyno sheets and measurements were spot on, with multiple different vehicles★

Share your results right away, post it to any social network or email it or just simply save it to the gallery.

You can open CSV or MSL MegaSquirt logs.

Many more

The log needs to be taken just like a dyno pull, in one given gear, from low rpm to high rpm. Try to avoid wheelspin as it can cause spikes in the graph.


SAE J1349
DIN 70020
ISO 1585

Once your car is set up, all you have to do is specify the weight of passengers, the level of your gas tank, which gear you were in during the measurement, and then click auto-weather which pulls your current weather data, or if you are using an older log, you can manually input the environmental values.

Now you don't have to go to the dyno if you want to measure any small modification or you just never had your car's power measured. You can see right away how your mods work after data logging. You can dyno unlimited times and unlimited vehicles for the fraction of the price of a dyno measurement.

You have to set your car up, how much it weights, what is the tire size, and what the gear ratios are, also what your car's drag coefficient and frontal area are, which the app will help in determining.

After specifying which gear did you have the data log taken, and specifying the driver, passenger, and possible cargo weight, you can open the CSV or MSL file.
After each measurement, note the humidity %, ambient temperature, and barometric pressure for accurate results.

Based on your car's data, and environmental values, the app generates a torque and horsepower curve, which you can analyze. The app also points out the peak values, and you will be able to see at what rpm did you make the most torque and most power.

User's Guide

Facebook Group for Support/Questions: Log Dyno Facebook Group

If you have any more questions feel free to contact: profisoftgames@gmail.com
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What's New

Additional correcton factor added:
-ISO 1585
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Additional Information

Eligible for Family Library
Eligible if bought after 7/2/2016. Learn More
November 16, 2018
Current Version
Requires Android
4.1 and up
Content Rating
Offered By
Profi-Soft Games
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