Why Tuning is Essential in FH6
Out-of-the-box cars in Forza Horizon 6 are deliberately undertuned. Playground Games expects you to adjust settings for your driving style and the specific event type. A properly tuned A-class car will consistently beat an untuned S1-class car on technical circuits. Here's the complete tuning system, explained from the ground up.
The Universal Tuning Formula
Every car in FH6 responds to the same fundamental physics. Apply this formula first, then fine-tune per car:
🏎️ The Golden Rule: Upgrade handling parts FIRST (tires, suspension, anti-roll bars, weight reduction), then add power. A car that handles well with 400 HP beats an uncontrollable 800 HP car every time.
Tire Pressure
- Road racing: Front 32 PSI, Rear 30 PSI — slight understeer bias for stability
- Dirt/cross country: Front 28 PSI, Rear 28 PSI — lower pressure = more grip on loose surfaces
- Drift: Front 28 PSI, Rear 35 PSI — high rear pressure reduces rear grip for easier slides
Camber
- Front camber: -1.5° to -2.5° — negative camber keeps the outer tire flat during cornering
- Rear camber: -0.5° to -1.5° — less aggressive than front for stability
- Rule of thumb: If your outer tire temperature is significantly higher than the inner, increase negative camber
Toe
- Front toe: +0.1° to +0.3° (toe-in) — improves turn-in response and straight-line stability
- Rear toe: -0.1° to 0.0° — slight toe-out for rotation, neutral for stability
- Never exceed ±0.5° front or rear — excessive toe destroys tire life and top speed
Anti-Roll Bars
| Build Type | Front ARB | Rear ARB |
|---|---|---|
| Balanced road | 25-30 | 20-25 |
| Understeer-prone (AWD) | 20-22 | 28-32 |
| Oversteer-prone (RWD) | 28-32 | 18-22 |
| Drift | 20-25 | 30-35 |
Springs
- Road racing: Front 500-700 lb/in, Rear 400-600 lb/in
- Dirt: Reduce by 30-40% from road values for suspension travel
- Ride height: As low as possible on road; 1-2 clicks from minimum on dirt
Damping
- Rebound (extension): 60-70% of bump stiffness. Controls how fast the suspension extends after compression.
- Bump (compression): 4.0-7.0. Controls how the suspension absorbs impacts.
- Rear rebound: Set 0.5-1.0 higher than front for better rotation on corner entry
Aerodynamics
- Front downforce: Maximum on road cars (better turn-in)
- Rear downforce: Balance for the event — more = more grip, less = more top speed
- Speed trap tuning: Minimum downforce front and rear for top speed runs
Differential
- RWD — Road: Accel 70-80%, Decel 30-40%
- RWD — Drift: Accel 90-100%, Decel 60-80%
- AWD — Road: Front accel 30-40%, Rear accel 60-70%, Balance 65% rear
- AWD — Dirt: Front accel 50%, Rear accel 80%, Balance 60% rear
Gearing
- Final drive: Adjust so the top of your last gear hits the rev limiter at the end of the longest straight on the track
- Individual gears: 1st-2nd for launches, 3rd-4th for corner exit, 5th-6th for top speed
- Tighter spacing in 2nd-4th gears for technical circuits; wider spacing for highway races
Build-Specific Quick Tune Sheets
Road Racing (A Class)
- Sport tires, Race suspension, Race ARBs, Race differential, Sport weight reduction
- Camber: -2.0° / -1.0° | Toe: +0.2° / 0.0°
- Springs: 600 / 500 | ARB: 28 / 22
- Diff: 75% accel / 40% decel
Dirt / Rally (A Class)
- Rally tires, Rally suspension, Race ARBs, Race differential
- Camber: -1.5° / -1.0° | Toe: +0.1° / 0.0°
- Springs: 400 / 350 | ARB: 20 / 28
- Diff: 50% front / 80% rear (AWD), 65% rear balance
Drag Racing (S2 Class)
- Drag tires, max power upgrades, minimum weight
- Camber: 0° / 0° | Toe: 0° / 0°
- Springs: Softest rear, stiffest front (weight transfer to rear)
- Gearing: 1st gear as long as possible without bogging
How to Test Your Tune
- Pick one circuit race (recommend: Tokyo Bay Circuit for road, Fuji Trail for dirt)
- Run 3 clean laps with current tune, note the best lap time
- Change ONE parameter at a time
- Run 3 more laps, compare times
- If it's worse, revert. If it's better, keep it and move to the next parameter.
📝 Author's Note: These values are starting points. Every car responds differently due to weight distribution, wheelbase, and engine placement. Front-engine cars tend to understeer; mid-engine cars rotate more aggressively. Adjust accordingly.