Software and Manuals - Precision DynoTech

Our RevBench software works with all models of our Dyno Data Systems. Requires Windows 10 or later. RevBench only works with our data systems.

Significant changes are in the 3.0.0 release; please email me (Sean@PrecisionDynoTech.com) if you have issues updating.

Version 3.1.4 Changelog (2026-03-10):

Fixed issue with test viewer not calculating power correctly with hardware timestamps.

Version 3.1.3 Changelog (2026-03-10):

Added Max HP and Torque values of Average plot to printout
Added live plot as a custom widget option
Changed resizing method of custom gauges.
- Right click, unlock, then drag the corners
- Lock movement of gauge again to hide corners
Fixed bug in test viewer which was using the un-synced rpm values
Added ability to change decimal places in test viewer.
- Right click desired measure in the list to change the amount of decimals displayed
Added ability to add a gear ratio for chassis dynos
- Useful for chassis dyno brakes that are not directly coupled to rollers
Added a tool to help determine the gear ratios of unknown chassis dyno gearboxes.
Added a similar ratio tool to determine final drive ratios on the RPM setup page. This tool calculates the effective ratio between the RPM input source and the engine RPM.
- Useful for chassis Dynos using the DC-1 or DC-2 with only 1 RPM input.

Version 3.1.2 Changelog (2026-03-06):

Added an optional ‘average’ plot to the comparison plot to average multiple tests.
Fixed bug where the test viewer was using the incorrect RPM data for the X-axis
- Only an issue for dynos that have gearing between the brake and engine. Test data was not changed, so previous tests made on older software versions are still fine.
Torque gauges in the custom view can be Zero’d by right clicking and clicking “Zero load cell”.
Removed computer specs from printed plots.
Added option to print the comparison tab of the test viewer.

Version 3.1.1 Changelog (2026-03-05):

Fixed bug with speed channel not working after program restarts until after clicking apply.
Added seconary y-axis to all plots to display data on a different scale.
Added data labels and cursors to the compare test tab.

Version 3.1.0 Changelog (2026-03-03):

Added AFR plot of voltage value pairs
- Also allow different fuel types or lambda
Added ability to save and load AFR sensors
- Included 3 AEM models with install
Added ability to define and save custom analog gauges
Fixed test viewer not moving to be on top at completion of a test if it was already open.
Changed x100 multipliers on analog gauges to not get behind the center of needles with some screen layouts.
Gauge row visiblity checkboixes now saved to config.
Fixed test names color when application is using light theme.

Version 3.0.11 Changelog (2026-03-03):

Fixed firmware issue update bug if user did not have WinUSB driver installed.
Added additional separate window to show custom gauges, for use on an additional monitor.
Fixed scaling issue on digital gauges
Fixes test viewer not opening after completed tests
Restore load cell filtering from saved config file upon restarting application.
Added ability to send saved tests directly to Precision DynoTech support via RevBench
Changed user data path to roaming instead of local (APPDATA instead of LOCALAPPDATA)
- This is mainly for enterprise level systems (colleges, corporations, etc).

Version 3.0.6 Changelog (2026-02-27):

Version 3.0.4 Changelog (2026-02-27):

Version 3.0.3 Changelog (2026-02-27):

Fixed firmware installation issue if users computer did not have required libraries.
Added ability to export and import configuration files.
Reduced load times on initial application startup.

Version 3.0.2 Changelog (2026-02-26):

Implemented firmware downloading and updating within the RevBench software under the About menu.
Firmware and Software update checks upon software startup.
Fixed issue with color-picker box aspect ratios.
Test names in comparison tab no longer change to selected test color, and instead have color-boxes next to them.

Version 3.0.1 Changelog (2026-02-26):

Fixed issue with analog guages not allowing option to select thermocouples on equipped units
Added RPM Bin filtering to the Test Viewer to smooth plots with noisy RPM signals.
Added save prompt when closing a test with unsaved changes.

Verison 3.0.0 Changelog (2026-02-25):

Added Inertial Compensation
- Can be adjusted post-test in the test viewer to fine tune inertia values of the engine-dyno system.
- Only applies to firmware 3.0.0 or later; email me if you need to update your firmware.
Dark and Light themes
Major changes to gauge displays
- Modernized look
- Custom Guage tab; user definable
  - Add as many as you want and position them however you’d like
- Added bar gauge and digital gauge
- Definable colored arcs on analog gauges
Improved printed tests
- Added test details and performance metrics
- Cleaned up layouts
Table View highlights peak power and torque
- Selectable data measures; only show what you want!
Values of data measures displayed next to the cursor in test view
Added ability to upload company logo
- Can be added in custom gauge view as well
Added decreasing sweep tests
Added alarms
- User-definable conditions
Countless subtle UI changes
Export test files to CSV
Probably more that I’m forgetting!