Who builds this
I am Alexander Royle. I have spent ten years sim racing across the serious titles, I write about games for a living, and I play Forza Horizon 6 competitively. The short version of the CV that matters here:
- Ten years sim racing.
- Published gaming journalist.
- Top-50 Forza Horizon 6 Rivals player.
- A+ rated Gran Turismo 7 driver.
- 4950 iRacing rating.
I built FH6 Tuner because the good setups were buried in spreadsheets, Discord threads and 40-minute videos, and nobody has time for that. Everything here is the tune I would actually run.
How the tunes are made
The calculator is not a lookup table. It works out each setting from the car in front of it: the weight over each axle, the weight distribution, the drivetrain and the power you are aiming for. Springs come from a target ride frequency, the final drive from a power-based formula, and the differential and anti-roll bars from the balance the discipline wants. That is why two different cars in the same class get two different tunes.
The tuning guides explain the reasoning behind each of those numbers, and the glossary defines the terms. If you want to understand a setting rather than just copy it, start there.
How the meta is sourced
The meta cars are not opinion. They come from the Forza Horizon 6 Rivals leaderboards, leaderboard trackers and community tier lists, cross-checked against what actually wins. The meta shifts with every seasonal patch and every new car, so the picks and the tunes are revised to match. When a part is over-performing and likely to be patched, such as the current off-road tyre and centrifugal supercharger picks, the guides say so.
Checking my working
The claims above are meant to be checked, not taken on trust. Verifiable profiles and the published journalism are being linked here so you can do exactly that. In the meantime, the proof is in the tunes: build one, run it, and see where it puts you on the board.