Harry's Dyno: Professional-Grade Performance Testing for Serious Tuners

Name: Harry's Dyno
Availability: InStock
Rating: 1 (1 reviews)

Stop guessing and start measuring. Get high-precision 0-60 mph and acceleration data using advanced GPS and OBD integration to validate your car's true performance on the street or track.

Publisher

Harald Schlangmann

Precision in Action

Discover the interface used by 101K+ users.

Introductory screen for Harrys Dyno app featuring a red muscle car and legal disclaimer

Main dashboard of Harrys Dyno app showing performance and results options

Harrys Dyno app performance screen showing acceleration timing for zero to sixty two mph

Interface of Harry's Dyno app showing a lap list with acceleration times for 0-60 mph and 0-200 km/h tests.

Speed and time telemetry chart in Harrys Dyno car performance app

Harrys Dyno app showing a speed versus time performance graph with data analysis

Administration screen of the Harrys Dyno app with vehicle and sensor settings

List of compatible external GPS and GLONASS sensors within the Harry's Dyno app interface.

Master Your Vehicle's Performance

The tools that make this app stand out, trusted by 101K+ users.

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Professional Grade Accuracy

Leverage OBD II sensors and external GPS integration to capture real-time performance data with millisecond precision, bypassing smartphone limitations.

📊

Deep-Dive Data Analytics

Utilize two-cursor mode to dissect your power band and analyze specific sub-ranges, ensuring every gear shift and tuning adjustment is optimized.

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Benchmark Every Modification

Instantly measure 0-60 mph, 100-200 km/h, and deceleration tests to validate the real-world impact of your latest aftermarket performance parts.

Loved by users worldwide

Trusted by 101K+ people who love this app.

"As a DIY tuner, I need more than just a 'butt-dyno' to see if my engine modifications are actually making a difference. This app provides the precision I need. When linked to my OBD sensor, the data is incredibly accurate. The two-cursor mode allows me to drill down into specific gear pulls and identify exactly where my power band shifts. It has effectively replaced my need for frequent, expensive professional dyno sessions."

Marcus Thompson

"I have been a loyal user of Harry's LapTimer for years, so I knew this would be a high-quality tool. Harry's Dyno is the gold standard for testing 0-60 times and high-speed pulls safely. The interface is clean and the ability to export high-frequency GPS data means I can back up my performance claims on the forums with real, empirical evidence. It is a must-have for any serious car enthusiast."

Sarah Jenkins

About the app

Everything you need to know about Harry's Dyno.

Description

Harry's Dyno is a high precision performance measuring app. It utilizes GPS and OBD sensor input to recognize arbitrary speed ranges like 0-60 mph or 100-200 km/h. Both acceleration and deceleration testing is supported. Results can be compared and analyzed in details. Using two-cursor mode, one can inspect subranges of data recorded (e.g. 80 to 120 km/h for a 0 to 200 km/h). Data is stored locally and can be filtered by speed range and vehicle used. It can be exported to various data formats too. Provided the smartphone is mounted in a position with good GPS accuracy, the internal GPS can be used for measurements. For short speed ranges, high powered vehicles, and highest precision, either external GPS or OBD sensors can be connected. OBD adapters are actually preferable as speed changes are available instantly. We have an always up to date list of compatible accessories available here: www.gps-laptimer.de/compatibility/ios For distance based performance testing (quarter mile etc), please use Harry's LapTimer currently. This mode will be added to Harry's Dyno as a free upgrade shortly. For Harry's LapTimer users! Harry's LapTimer GrandPrix has received a free feature upgrade and includes Harry's Dyno functionality now: please follow LapTimer ‣ Race ‣ Performance to use the dyno mode. In case you have used Harry's LapTimer Petrolhead so far, you may either upgrade it to GrandPrix (LapTimer ‣ Administration ‣ Add-ons), or go for Harry's Dyno as a separate app. Enjoy and let us know what you think! For questions, tipps & tricks, and support, please use our forum www.gps-laptimer-forum.de

Latest Version

25.0.0

Size

40.7 MB

First Released

Sep 26, 2016

Stop Guessing. Start Measuring.

Join thousands of data-driven enthusiasts using professional-grade GPS and OBD data to validate every modification. Download Harry’s Dyno and get the empirical evidence your build deserves.

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