Forza Horizon 6 Windows

A customizable HUD & telemetry overlay for Forza Horizon 6

Compare wheel speed with road speed, follow drift angle, or record a run to review afterward. It supports Steam and Xbox app / Microsoft Store editions on Windows PC. Explore the drift angle gauge

New in Wisp 2.4 Explore Wisp 2.4 A performance hotfix for the G-SYNC/VRR needle issue, with less rendering overhead and more detailed debug reports.

Download for Windows View source Nexus Mods See wheel speed demo

The installer is not code-signed, so Windows may identify its publisher as unknown. View the SHA-256 checksum.

Version 2.4 Windows 10 and 11 53.0 MiB Runtime included

Standard telemetry FH6 Data Out over local UDP

Universal HUD Digital and analogue, with boost, power, torque, and tire temperature

Steam and Microsoft Store Native HUD: Steam 6.440.853.0 · Xbox app / Microsoft Store 3.440.853.0 on Windows PC

Screenshots

Your HUD, dashboard, and recorded runs

See Wisp in use, from its in-game gauges to a dashboard for your second screen and recorded runs. The first gameplay screenshot shows Wisp 2.1; the interface screenshots show Wisp 2.0 during development.

Native gauges

Engine output, boost, and tire temperature

Read the game's reported output beside your speedometer. Boost, tire temperature, power, and torque can attach to the HUD or run as separate overlays, with a shared color palette.

Power and torque

Enable BHP and torque independently, with Nm or lb-ft for torque. Peak markers track the highest output observed for the current car. Set fixed ranges for each car, or use Set from this run to apply the observed peaks plus 10% once. The ranges stay fixed while driving. Adjustable smoothing starts at 250 ms; negative output is hidden unless enabled.

Fresh installations start in Native Analogue with all gauges enabled and four equally sized supplementary dials. Existing installations keep their saved choices.

Boost pressure

Digital mode adds a slim rail beneath the tachometer. Analogue mode adds a dial, with PSI and bar available in both layouts. Optional vacuum pressure includes negative readings after positive boost is detected. Choose custom gauge colors, separate number colors, or the stock appearance. The gauge shows zero on naturally aspirated cars and stays hidden on electric vehicles.

Front and rear tire temperature

Wisp averages the left and right tire temperatures for each axle. Digital mode places two marker lines in one neutral rail with no fill or redline. Analogue mode uses two solid-color needles in one dial. Fahrenheit and Celsius are both available, and the display holds at 350°F when telemetry exceeds the gauge range.

Forza Horizon 6 gameplay with Wisp's Native Analogue HUD, attached boost, BHP, tire-temperature and torque dials, and drift angle guidance — **Power and torque in Wisp 2.1** Live BHP and torque beside boost and tire temperature, with drift guidance above the action

Wisp dashboard with live RPM, speed, gear, power, torque, and grouped vehicle telemetry — **Dashboard** Curved RPM scale, large speed and gear readings, power, torque, and session peaks

Wisp borderless Display mode with a curved tachometer and large instrument readings — **Second-screen display** Fill a monitor or resize the borderless dashboard to share the screen

Wisp Runs workspace comparing recorded telemetry with separate colors and configurable graphs — **Record and compare runs** Arrange graphs around your test, with distinct colors for each run

Wisp Appearance showing a live Analogue HUD preview and color and particle controls — **Appearance** Live HUD preview, gauge controls, colors, particles, and application styling

Wisp Diagnostics with connection health, tire calibration, Native HUD capabilities, and debug controls — **Diagnostics** Telemetry reception, tire calibration, Native HUD status, and local debug reports

Wisp Profiles showing saved HUD layouts and color combinations — **Profiles** Save and switch HUD layouts and gauge colors while retaining tire calibration

Wisp Extras with startup, update, display, and visibility preferences — **Extras** Startup behavior, update checks, display preferences, and visibility shortcuts

Forza Horizon 6 gameplay with Wisp's Digital Native HUD and attached boost and tire-temperature rails — **Digital Native HUD** Native tachometer, boost rail, and front and rear tire-temperature markers

Telemetry pipeline

How Wisp obtains each value

Select a data group to see where its readings come from. Most use FH6 Data Out. The Native HUD also reads a few values directly from supported game builds.

Source Forza Horizon 6

Local path UDP loopback

Output Wisp HUD

Source: FH6 Data Out
Values: Ground speed, acceleration, wheel rotation, tire slip, tire temperatures
Availability: Standard telemetry

Wheel indicated speed

Driven-wheel speed model

Wisp converts wheel rotation to speed using the learned front and rear rolling radii. Choose a drivetrain and adjust wheelspin to compare the readings below.

Driven-wheel model 60 MPH ground speed

+18 MPH

Wheelspin 30%

Drivetrain

FL 60 MPH

FR 60 MPH

RL 78 MPH

RR 78 MPH

FH6 ground speed 60 MPH

Wisp wheel indicated 78 MPH

RWD selects the rear-axle mean: 78 MPH at 30% wheelspin, 18 MPH above ground speed.

At 30% wheelspin, the driven wheel surfaces travel at 78 MPH while the car covers 60 MPH over the ground.

This demo uses sample values before display smoothing.

Setup walkthrough

Connect Wisp to FH6

These four screens cover the initial connection and HUD placement.

Step 01

Open the setup wizard

Wisp first-run setup wizard on the Welcome step

Security

Telemetry sources and processing

Wisp receives speed, RPM, gear, acceleration, wheel rotation, tire slip, boost pressure, tire temperature, and power values from FH6 Data Out over local UDP. It uses those values to render the overlay, calculate wheel indicated speed and rolling radius, and populate diagnostics and saved run reports. On supported Steam and Xbox app / Microsoft Store builds, a separate read-only local process query provides exact redline, selected assist states, native EV gauge ratios, and gameplay visibility.

Privacy details Troubleshooting

Standard input: FH6 Data Out over UDP
Calculated locally: Wheel indicated speed and rolling radius
Read-only local query: Redline, assists, and native EV gauge ratios
Game injection: None
Driving telemetry sent by Wisp: None