Dirt and cross-country events demand a fundamentally different setup from grip racing: long suspension travel, soft springs, high ride height, and low tire pressure. With Forza Horizon 6 launching in five days (worldwide release 2026-05-19, Premium early access 2026-05-15) and using the same tuning menu structure as FH5, the methodology below — drawn from forza.net forum guides and respected creator content — is the closest sourced baseline available until FH6-specific tunes are published. Specific numeric values are unconfirmed as of May 2026 for FH6 and should be re-validated against your car in-game.
Key Facts
| Setting | Dirt tune | Cross-country tune |
|---|---|---|
| Applies to | FH5 methodology, expected to carry forward to FH6 — unconfirmed as of May 2026 | |
| Ride height | Maximum, then decrease rear by 0.1 inch | Maximum, then decrease front by 0.1 inch |
| Springs | Decrease front and rear by ~0.5 vs road baseline | Increase front and rear by ~0.5 vs road baseline |
| ARBs | Slightly stiffer than road (+0.1) — unconfirmed as of May 2026 | Soft, on par with rally (-0.1) |
| Tire pressure | Road-tune PSI minus 3.5 psi (Diamond Lobby suggests 10–15 PSI) | Less than 10 PSI per Diamond Lobby — unconfirmed as of May 2026 |
| Differential | Lower diff lock than road; 50/50 AWD balanced | 65–70% rear-bias for aggressive cornering |
| Dampers | Higher rebound than race suspension | Additional rear rebound (and rear bump on off-road suspension) |
| Tire compound | Rally or Off-Road compound | Rally or Off-Road compound |
Why Dirt and Cross-Country Tunes Are Different
Grip tunes minimize body roll and keep the contact patch flat on smooth tarmac. Dirt and cross-country tunes do the opposite — they maximize suspension travel so the wheels can follow bumps, ruts, and jumps without losing traction or unsettling the chassis.
The QuickTune FH5 guide states the principle plainly: “Dirt and cross country tunes generally require maximum ride height for increased suspension travel while cornering and increased stability during acceleration and braking.” Torquecars echoes this: “Off road cars need lots of clearance and softer suspension, otherwise, they will just bounce around,” and notes “that extra suspension travel will help keep the car gripping the surface.”
The practical split:
- Dirt (rally-style, packed gravel, hardpack): Slightly stiffer than cross-country, biased toward predictable understeer.
- Cross-country (open terrain, jumps, mixed surfaces): Softest setup of the three, biased toward rotation/oversteer so you can swing the car through loose corners.
For FH6 the tuning menu is expected to remain identical to FH5 (springs, dampers, ARBs, ride height, differential, tire pressure). The methodology below is therefore a sourced baseline, but every specific value is unconfirmed as of May 2026 for FH6 until launch builds are tested.
Ride Height, Springs, and ARBs
Start by maxing ride height, then make a tiny asymmetric adjustment to bias the chassis.
| Setting | Dirt tune | Cross-country tune |
|---|---|---|
| Ride height | Max F/R, then rear -0.1 (slight understeer) | Max F/R, then front -0.1 (slight oversteer) |
| Springs (vs road baseline) | -0.5 front and rear | +0.5 front and rear (still softer than road in absolute terms) |
| Springs bias | Front +0.5, rear -0.5 for understeer | Front -0.5, rear +0.5 for oversteer |
| ARB (QuickTune) | +0.1 stiffer than road — unconfirmed | -0.1 softer than road |
QuickTune’s exact instruction for dirt ride height: “For dirt tunes set front and rear ride height to maximum possible values and then decrease rear ride height by 0.1.” For cross-country springs: “For cross country tunes first increase front and rear springs slightly by 0.5 as compared to road tunes.”
Diamond Lobby frames the same concept in plain terms — for a rally/dirt build, “ride height should also be a bit higher, around an inch or 2 more than our road-racing counterpart,” and springs “we would want a much softer setting than road racing, but also not too soft that it makes us unprepared for tarmac sections.” For cross-country, “ride height to be comparatively higher to account for the bumps and jumps,” with “suspension and antiroll bars softer or on par with our rally build.”
Note that QuickTune recommends slightly stiffer ARBs for dirt while Torquecars argues for very soft ARBs off-road. Treat ARB numbers as a starting range and tune by feel; mark unconfirmed as of May 2026.
Dampers and Differential for Off-Road
Dampers control how fast the springs compress and rebound. On bumpy surfaces you want the wheel to fall back into the dip quickly (higher rebound) so it can keep gripping.
The Forza Forums in-depth guide states: “Also rally and off-road suspensions need higher rebound than race suspension to keep cars planted during cornering,” and specifically “For cross country dampers need additional rear rebound, in case of off-road suspension also additional rear bump to keep the cars better planted during cornering.”
Differential settings change too. From the same guide: “rally cars have much more in common with off-road cars, meaning they require lower differential tuning and more braking force on the front than regular road cars.” Practically:
- AWD dirt build — 50/50 power split is the safe default; bias 60–70% rear if you want a more rotational, drifty feel through corners.
- Acceleration diff — lower than a road tune so the inside wheel can spin up gently on loose surfaces.
- Deceleration diff — lower as well; high decel diff locks the rears and slides the car under braking on dirt.
All exact percentages are unconfirmed as of May 2026 for FH6 and depend heavily on the specific car — rally-class hatchbacks (Lancia Delta, Subaru WRX) behave very differently from cross-country trucks (Ford Bronco, Class 10 buggies).
Tires: Compound and Pressure
Tire compound choice is mandatory before you tune anything else. The Forza Forums guide warns: “Cars with road, drift or drag tires generally require additional chassis tuning when tuning for dirt or cross country since their chassis is intended for road and not for off-road racing.” Always fit Rally tires for dirt events and Off-Road tires for cross-country/baja unless the build is intentionally mixed-surface.
Lower tire pressure increases contact patch and lets the tire deform around bumps. Sources give different numeric advice:
| Source | Dirt PSI | Cross-country PSI |
|---|---|---|
| QuickTune (FH5 Part 4) | Road PSI -3.5 | Road PSI +5.5 (counter-intuitive; verify in-game) |
| Diamond Lobby | 10–15 PSI | Less than 10 PSI |
| Torquecars | Drop them for off-road if the car is bouncing | (same) |
Diamond Lobby’s range is the most commonly cited community baseline: start dirt tunes at ~12 PSI front and rear, and cross-country tunes at ~8–10 PSI. Drop further if the car feels skittish over jumps. The QuickTune “+5.5 PSI” advice for cross-country is unusual and may apply only to specific chassis classes — mark as unconfirmed as of May 2026 and validate in-game.
FH5 to FH6: What Carries Over
Forza Horizon 6 has not published a tuning guide as of 2026-05-14. The expectation — based on every Horizon title since FH3 keeping an identical tuning menu — is that the dirt and cross-country methodology above transfers directly.
- The tuning page structure (Tires, Gearing, Alignment, Anti-Roll Bars, Springs, Damping, Aero, Brakes, Differential) is expected to be unchanged — unconfirmed as of May 2026.
- Numeric ranges (PSI, spring rate, ride height in inches) may shift slightly per car as the FH6 physics tune is iterated post-launch.
- New mechanics teased for FH6 (dynamic weather, monsoon season, mud build-up on tires) may require softer settings than FH5 baselines in wet/muddy conditions.
Recommended workflow on launch day:
- Fit Rally or Off-Road tires.
- Max ride height; apply the -0.1 asymmetric tweak above.
- Soften springs and ARBs from your road-tune baseline.
- Raise rebound damping ~0.5–1.0 over road values.
- Drop tire pressure to 10–12 PSI.
- Test on a known dirt sprint, adjust diff and dampers last by feel.
Until verified FH6 tunes appear on the Forza forums or from creators like HokiHoshi and Don Joewon Song, treat every specific number on this page as a starting point, not a finished tune.
Frequently Asked Questions
What is the best ride height for a dirt tune in Forza Horizon?
Set front and rear ride height to maximum, then drop the rear by about 0.1 inch to bias the car toward gentle understeer. Maximum ride height is what gives you the suspension travel needed to absorb ruts and jumps without bottoming out.
Should dirt tunes use softer or stiffer springs than road tunes?
Softer. QuickTune’s FH5 guide recommends decreasing both front and rear springs by about 0.5 versus your road-tune baseline. Cross-country tunes are softer still. Stiff springs cannot follow uneven terrain and cause the car to skip.
What tire pressure should I use for cross-country racing?
Most community guides recommend under 10 PSI for cross-country and 10–15 PSI for dirt/rally. Lower pressure increases the contact patch on loose surfaces. Diamond Lobby’s range is the safest starting point if you are new to off-road tuning.
Do I need Rally tires for dirt events?
Yes. The Forza forums in-depth guide warns that road, drift, or drag tires force additional chassis compensation off-road because the chassis is built for tarmac. Fit Rally compound for dirt and Off-Road for cross-country before tuning anything else.
What differential settings work best for off-road racing?
Lower differential lock percentages than a road tune, with more front braking force. For AWD, a balanced 50/50 power split is the default; bias 65–70% rear for a more rotational, drifty feel through loose corners.
Will FH5 dirt tunes work in Forza Horizon 6?
The methodology should transfer because the FH tuning menu has been unchanged since FH3, but exact spring rates and PSI values will need re-validation once FH6 launches on 2026-05-19. Treat all numbers from FH5 guides as a starting point — unconfirmed as of May 2026.
How do dampers differ between dirt and grip tunes?
Off-road and rally suspension need higher rebound than race suspension to keep wheels planted through bumps. For cross-country specifically, add additional rear rebound, and additional rear bump if using off-road (not rally) suspension parts.