Forza Horizon 6 Tuning Guide

Note: Specific tuning values (PSI, spring rates, differential percentages) vary significantly by car and will be added after the game launches on May 19, 2026. This guide covers the concepts and direction of each setting.

Tuning transforms a stock car into a race-winning machine. This guide covers what each setting does and which direction to push it.

Before You Start

Open the Upgrades & Tuning menu from the garage. Upgrade your car first — tuning only adjusts what's already installed. You'll need at least sport or race-grade parts to unlock most tune settings.

Key rule: tune for the event type. A road tune on a dirt stage will lose to a properly set up all-terrain build.

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Tires

Tires are the single most important tuning category.

Tire pressure:

Lower pressure = more contact patch = more grip, but slower steering response

Higher pressure = less contact patch = sharper turn-in, less grip

General direction:

Road racing: higher pressure than off-road

Dirt / Cross-country: lower pressure to absorb surface variation

Tire compound matters more than pressure. Race Soft compounds give peak grip but overheat on long runs. Race Medium balances grip and durability for most events.

Specific recommended PSI values by car class — TBD post-launch.

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Suspension

Spring Rate

Higher = stiffer = better body control but less traction over bumps.

Road racing: medium-high stiffness

Dirt / Touge: softer to absorb surface variation

Ride Height

Lower = better aerodynamics and center of gravity. Don't go so low that the car bottoms out.

Camber

Negative camber (leaning tops inward) increases cornering grip. Too much causes inner tire wear and straight-line traction loss.

Recommended camber ranges by car type — TBD post-launch.

Toe

Toe-in (positive) = more stability, less steering response

Toe-out (negative) = sharper turn-in, less straight-line stability

Start at 0° and adjust from there based on how the car feels

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Differential

The differential controls how power is split between wheels.

For AWD cars: Lower front acceleration bias for rotation; higher rear for drive.

For drift builds: Rear accel at maximum, decel low. Let the rear slide freely.

Specific differential percentages by drivetrain and car — TBD post-launch.

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Gearing

Use the final drive to adjust top speed vs acceleration. Moving it shorter gives faster acceleration but lower top speed.

For touge and circuit: Shorter gearing wins. You rarely hit top speed on Japan's mountain roads.

For Wangan Expressway: Longer gearing lets you reach higher top speeds on the straights.

Individual gear ratios: space them evenly in the RPM band where your engine makes peak power.

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Aero

Downforce increases grip through corners but creates drag on straights.

High downforce: Circuit racing, touge, any track with lots of corners

Low downforce: Drag racing, Wangan runs, top-speed events

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Braking

Brake pressure: Lower if the car locks wheels early. Raise if braking distance is too long.

Brake bias: Forward = more front brake = stability but can understeer. Rearward = rotation on entry but risk of spin.

Start at centre bias and adjust from there.

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Quick Tune Direction by Event Type

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*Specific values for each car will be added after May 19. Tune values are a starting point — every car responds differently. Check the Patch Notes for any balance changes that affect tuning.*

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