1. Download

Download the latest RacePulse.exe from the Releases page.

Download the matching RacePulse.exe.sha256 asset and verify the executable SHA-256 before running. Compare it with Get-FileHash -LiteralPath .\RacePulse.exe -Algorithm SHA256 in PowerShell; the first field in the sidecar is the expected hash.

2. Launch

Run RacePulse.exe. No installation required.

Note: On first launch, Windows may show a SmartScreen prompt since the app is unsigned. Click “More info” then “Run anyway”.

3. Game Setup

iRacing

No configuration needed. RacePulse automatically detects iRacing via shared memory when the sim is running. Load into a session to see live telemetry.

Assetto Corsa Competizione

No configuration needed. RacePulse reads ACC’s shared memory, but ACC can’t be detected from the main menu. Load into a session (practice, qualifying, or race) first, and RacePulse detects it.

Assetto Corsa

No configuration needed. Assetto Corsa is detected once a session is loaded. Its main menu runs in a separate launcher, so RacePulse can’t see the game there.

Le Mans Ultimate

One-time step: in LMU, go to Settings > Gameplay and turn Enable Plugins on. RacePulse reads the shared memory interface built into the game, with no plugin DLL to install. Once a session is loaded, RacePulse detects LMU automatically.

While LMU is running, RacePulse also reads car numbers, team names, and (on online servers) driver countries from the game’s own local web interface on your PC. Nothing to set up; it feeds Relative and Standings.

F1 25

In F1 25, go to Settings > Telemetry Settings
Set UDP Telemetry to On
Set UDP Port to one of the ports RacePulse listens on: 22025, 22024, 22023, or 20777
Set UDP Format to 2025. With the 2026 Season Pack, its 2026 format works too.
Start a session. RacePulse auto-detects the game when telemetry is broadcasting.

F1 24

In F1 24, go to Settings > Telemetry Settings
Set UDP Telemetry to On
Set UDP Port to one of the ports RacePulse listens on: 22025, 22024, 22023, or 20777
Set UDP Format to 2024
Start a session. RacePulse auto-detects the game when telemetry is broadcasting.

If F1 doesn’t connect: another app may be using that port. Pick another of RacePulse’s ports in the game, or close the other app. RacePulse names the game by the UDP format it receives, so F1 25 sending the 2024 format shows as F1 24. Older formats aren’t read.

4. Configure Widgets

In All widgets, flip the switch on any widget card. You don’t need a game running.
Turning a widget on starts Arrange: drag your widgets where you want them on your monitor
Choose Lock for racing in the bottom bar when you’re done. Locked widgets let your clicks through to the game.
Choose Customize on a card to change units, colors, and what the widget shows, with a live preview. Save settings keeps your changes.
Optional: save what’s on screen as a widget layout, from the layout picker in the bottom bar or the Widget layouts page
Settings persist automatically across sessions

Help (the ? at the top of the window) walks through these steps and ticks each one off as you go.

Note: With Only show with telemetry on (the default), locked widgets hide while no game is sending telemetry and come back when it returns. To keep them on screen all the time, turn it off in the bottom bar’s Overlay menu.

5. Updating

RacePulse checks for new versions when it starts. When one is out, an update banner appears under the title bar: choose Update now, and RacePulse downloads the new version, checks it, and restarts into it. You can also check from Settings › Updates.

To update by hand, close RacePulse, download the newer release, and replace the previous RacePulse.exe.

Your widget settings, positions, and layouts are stored separately in %USERPROFILE%\.racepulse and will be preserved. Settings › Advanced opens that folder. Close RacePulse before backing it up or editing its files.

Upgrading from 0.3.5: your widgets and their settings carry over. A few things work differently:

Edit Mode is now Arrange, and click-through is Lock for racing, both in the bottom bar
Each widget’s settings are on its own Customize page instead of the Config drawer
Widgets now hide while no game is sending telemetry. Turn off Only show with telemetry in the Overlay menu if you want them on screen all the time.
Recenter all widgets and Turn all off are in the Overlay menu, and both ask first

Troubleshooting

Overlays do not appear

Ensure your game is running and a session is active (on track, not in menus)
Check the connection pill at the top of RacePulse: it reads LIVE when telemetry arrives
With Only show with telemetry on, locked widgets stay hidden until a game sends telemetry. Switch to Arrange to see them, or turn the setting off in the Overlay menu.
If a widget card says Hidden in your sim, that game doesn’t send the data the widget needs
Lost a widget on another monitor? Overlay › Recenter all widgets brings every widget to the main window’s screen

No telemetry data (F1 games)

Confirm UDP Telemetry is enabled in the F1 game settings
Check that the UDP port is one RacePulse listens on: 22025, 22024, 22023, or 20777
Check that UDP Format is 2025 for F1 25 (or 2026 with the 2026 Season Pack) and 2024 for F1 24
If it still doesn’t connect, another app may be using that port. Pick another of these ports in the game, or close the other app.
Allow RacePulse through Windows Firewall if prompted

No telemetry data (iRacing / ACC / Assetto Corsa / Le Mans Ultimate)

Ensure the sim is running and you are in a session (not the main menu)
Shared memory is only available while on track or in replay
ACC and Assetto Corsa: these are only detected once a session is loaded
LMU only: verify Settings > Gameplay > Enable Plugins is turned on

App won’t start or crashes

Ensure you are on Windows 10 or 11 (64-bit)
Try running as Administrator
Check that desktop composition is enabled (default on Windows 10/11)

Widgets show stale data after closing a game

RacePulse disconnects automatically shortly after the game stops sending data
You can also choose Disconnect from the connection pill’s menu