Guide

How to use FH6 TuneLab.

From picking a car to a finished tune — in four steps. Plus two optional extras for pinpoint accuracy.

The idea in one line: you feed the app the real values FH6 shows for your car — and it calculates the exact numbers to type into FH6's tuning menus.
Quick start

A working tune in four steps.

01

Pick your car

Open the Garage and find your car — all 618 from the official Forza list, with complete factory data.

Tip: press Ctrl+K, type the name
FH6 TuneLab — the Garage with a car selected
The Garage — pick your car
02

Choose a driving style

In the Tune Lab, open the Feel tab and click a recipe — Grip, Vmax, Drift, Drag, Rally or Rain. One click sets the discipline and every slider. The radar shows the resulting character.

FH6 TuneLab — the Feel tab with recipes and the character radar
The Feel tab — recipes & character radar
03

Read the Tune Sheet

Open the Tune Sheet tab. It lists the finished FH6 inputs. Work through the FH6 tabs top to bottom — Exact Input means type that number exactly as shown.

FH6 TuneLab — the Tune Sheet with calculated values
The Tune Sheet — your FH6 values
04

Enter it in game

Click “Enter in game”. A small window floats over FH6 with a checklist — type each value and tick it off. When it's empty, you're done — hit the track.

FH6 TuneLab — the Enter in game checklist overlay
The “Enter in game” checklist overlay
Optional

Want it pinpoint? Two extras.

Fast Build

Pick a target class and a build style. The app hands you an upgrade order and a shopping checklist for the FH6 Upgrade Shop, so you land exactly on the target PI.

Calibration / FH6 Data

Enter the values FH6 actually shows — PI, power, weight, tires, and only the height/spring/aero ranges FH6 unlocks. Save it, and the app calculates from real numbers instead of an estimate. The Capture Wizard walks you through it field by field.

Golden rule: the more real the values you enter, the more precise the Tune Sheet. In a hurry? The four-step quick start already gives a solid setup.
Test on track

Optional: live telemetry & HUD.

Turn on Data Out in FH6, point it at 127.0.0.1 with the port the app shows, and press Start. You get live gauges, run recording, A/B compare of two runs, and an in-game HUD overlay you can drag anywhere — purely for fine-tuning.

Download FH6 TuneLab

Stuck on something? Ask in our Discord — we're happy to help.