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irSetupDiffer

Setup Viewer and Comparison Tool

irSetupDiffer is a free iRacing setup viewer and comparison tool that loads setups directly from iRacing or from saved telemetry (IBT) files. Unlike basic setup viewers, SetupDiffer lets you compare two setups simultaneously with side-by-side analysis and difference highlighting.

Installation

Download the free iRacing setup comparison software and run the installation:

Setup Viewer and Comparison Tool (irSetupDiffer.msi)

Key Features

  • Compare iRacing setups side-by-side with automatic difference highlighting
  • Load setups directly from live iRacing sessions in real-time
  • Import and analyze setups from IBT telemetry files
  • Snapshot comparison for iterative setup development and tuning
  • Filter view to show only setup differences between configurations
  • Free Windows 11 setup analysis tool for iRacing

Compare two setups for the same car and track in iRacing, with differences displayed in a clear and easy-to-understand format. This makes it an excellent tool for drivers looking to improve their setup building skills, as it shows exactly what changes have been made between setups and how those changes might affect the car's performance.

Screenshots

Main interface showing options for loading setups from multiple sources
iRacing setup comparison tool main interface - SetupDiffer showing load options for telemetry and live sessions
Comparing a live iRacing setup snapshot (@ 11:48AM) with a previous IBT setup from the "vwbeetlegrc_iowa rallycross" telemetry file
iRacing setup viewer comparing live session setup vs IBT telemetry file setup side-by-side

How to Use the Setup Comparison Tool

SetupDiffer's iRacing setup viewer can load setups from two different sources: directly from live iRacing sessions, or from saved IBT telemetry files for historical setup analysis.

Loading from Telemetry Files

Once installed, you will see two buttons for loading iRacing telemetry IBT files. Click either button and use the file browser to select an IBT file from the Documents/iRacing/Telemetry folder. Most users have telemetry enabled, making this an excellent source of historic setups for comparison and analysis.

When a file is loaded, the setup information will be displayed in the list. When a second different file is loaded, the setups will be compared and differences will be shown on the right-hand side.

Loading from iRacing

When iRacing is running, the iRacing buttons will be enabled. Click either button to load the current iRacing setup, which will be displayed in the corresponding window panel.

You can load setups from any source, in any order, on either side of the comparison.

To view only the differences between setup parameters, toggle the "Filter Differences" switch.

iRacing Snapshots

Click an iRacing button to load the current iRacing setup (on either the left or right-hand side). After making changes to your setup, click the other iRacing button to load a new snapshot and compare. A timestamp will show when the snapshot was taken.

System Requirements

  • Windows 11
  • iRacing

Frequently Asked Questions

  • How do I compare two iRacing setups?
    Load your first setup from either an IBT telemetry file or directly from iRacing, then load the second setup. SetupDiffer will automatically display the differences side-by-side with highlighting.
  • Where can I find my IBT telemetry files?
    iRacing telemetry files are saved in your "Documents/IRacing/telemetry" folder. These files contain setup information from your racing sessions.
  • Can I compare setups while iRacing is running?
    Yes! The live iRacing snapshot feature lets you capture and compare your current setup in real-time during practice sessions.
  • Why is the iRacing button not enabled?
    The button to load a setup from iRacing will only be enabled when the iRacing simulator is running and connected.
  • Is SetupDiffer free?
    Yes, irSetupDiffer is completely free to download and use for all iRacing setup comparison and analysis needs.
  • What setup file formats are supported?
    SetupDiffer supports IBT telemetry files and live iRacing session data. It works with all iRacing cars and tracks.