Dynomic – GPS Dyno Power Meter

Dynomic

About this app

Dynomic turns your car into a dyno. Connect the Dynomic GPS device, accelerate on a straight road, and within seconds get a full power and torque curve — just like a rolling road dyno.

🏁 HOW IT WORKS

1. Attach the GPS device magnetically to your roof
2. Connect to the app via Bluetooth
3. Accelerate full throttle to high RPM
4. Shift to neutral — the app detects the coast-down automatically
5. Done — power [HP] and torque [Nm] curves on screen

The app reads velocity from a professional u-blox GPS receiver with millimeter-per-second precision, 10 times per second. From acceleration and vehicle mass it calculates wheel power; from the coast-down phase it derives rolling and aerodynamic losses to estimate engine power.

📊 FEATURES

• Real-time power [HP] and torque [Nm] measurement
• Power curve plotted against engine RPM
• Automatic coast-down detection — hands stay on the wheel
• DIN 70020 atmospheric correction (temperature + pressure) — results comparable across weather conditions
• Physics-based loss model: rolling resistance + aerodynamic drag from your actual coast-down
• Multi-vehicle garage with individual parameters
• Run history and two-run comparison (before/after tuning)
• A4 PDF export with your workshop logo — a report you can hand to customers
• Mobile PDF and raw-data XML export
• Cloud sync — access your runs from the web dashboard
• Over-the-air firmware updates via Bluetooth
• Live GPS diagnostics: signal quality, update rate, velocity accuracy

🔧 WHO IT'S FOR

• Workshops & tuners — prove chip-tuning gains with a PDF report, without sending the customer to a dyno
• Car enthusiasts — measure after every mod, as many times as you like
• Diagnostics — power loss shows on the chart before a warning light comes on

📡 REQUIREMENTS

• Dynomic GPS device (dynomic.pro) — the app runs in limited mode without it
• Android 10 or newer
• Bluetooth LE

Measurement accuracy ±2-3% vs a rolling road dyno with proper calibration and good conditions (straight road, low wind).

Perform measurements on closed roads only, or in full compliance with traffic law. The driver is responsible for safe driving at all times.

Learn more: dynomic.pro