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LapSmith v0.1.13

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@UltimateKillCam UltimateKillCam released this 24 Jun 14:56
· 4 commits to main since this release

v0.1.13 — bug fixes (please update)

Thanks to everyone who reported issues — this release fixes the big ones.

  • Fixed: the app not closing properly. Hitting X left it running in the background with the telemetry port held, so you couldn't reopen it without killing it in Task Manager. It now exits cleanly and frees the port straight away.
  • Fixed: sessions and logs not saving. This was tied to the above — because the app was being force-killed, sessions never got written. Logs now save continuously as you drive (in %APPDATA%\LapSmith\sessions), so a session is kept even if something goes wrong. Added a "Save current session now" button and an "Open logs folder" shortcut.
  • Fixed: finishing on the baseline tune even after a faster one was found. It now always saves the best confirmed tune, and tells you which one it picked and why.
  • Hardened the change-tracking so it can't ask you to revert a change you never made.

If you hit any of these before, please grab a fresh session log next time and send it over — it now captures the full step-by-step, which makes anything left much easier to fix.

LapSmith is a free, telemetry-driven tuning assistant for Forza Horizon 6. It reads the game's Data Out feed and your tyre Heat page and tells you the exact change to make next — one tweak per lap — until the car stops getting faster. You drive and type the values in yourself. It only reads telemetry and the screen; it never injects, automates input, or modifies the game.

This is the first public release. It's had a lot of my own testing but not much outside use yet, so if you hit something odd, please open an issue — that's a huge help.
Downloads

LapSmith-Setup.exe — installer with a Start-menu shortcut and uninstaller. Recommended.
LapSmith-0.1.6-portable.zip — no install; unzip anywhere and run LapSmith.exe.

First run

The app is unsigned, so the first time you run it Windows SmartScreen will say "Windows protected your PC." Click More info → Run anyway. If you use the portable zip, right-click it → Properties → Unblock before extracting.

It comes back clean on VirusTotal (0 of 66 engines):.: https://www.virustotal.com/gui/file/48de0d90491d7cbdcfd255ac847c6e23e2cae99a9d23a56f9b2e5deb4065d35e/detection

Setup

In Forza Horizon 6, turn on Settings → HUD and Gameplay → Data Out, set the IP to 127.0.0.1 and the port to 5607, and run the game borderless or fullscreen. Full quick-start is in the README.
Notes

LapSmith is free and always will be — nothing is locked behind a payment. If it saves you time and you want to chip in, there's an optional tip jar: https://ko-fi.com/ultimatekillcam

Not affiliated with or endorsed by Microsoft, Playground Games, or Turn 10. "Forza Horizon" is used only to describe what the tool works with.