// Forza Horizon 6 // Tuning Reference

Slider
Cheat Sheet

Every tuning slider in the game. Left side vs right side, what it actually does to your car. No fluff, no theory.

Left of slider
Right of slider
01 // Tires
Tire Pressure
Front / Rear
← Left
Lower PSI
  • Bigger contact patch, more grip
  • Slower steering response
  • Heats up faster, wears quicker
Right →
Higher PSI
  • Smaller contact patch, less grip
  • Sharper, quicker response
  • Less heat, holds shape better
Sweet Spot Around 28 to 30 PSI for most builds. Drop rear pressure 1 to 2 PSI if the car is sliding in corners.
02 // Gearing
Final Drive
Overall Ratio
← Left
Shorter
  • Faster acceleration
  • Lower top speed
  • Better for technical / mountain tracks
Right →
Longer
  • Slower acceleration
  • Higher top speed
  • Better for highway / open tracks
Individual Gears
1st through Top
← Left
Shorter Ratio
  • More pull and torque in that gear
  • Hits redline sooner
Right →
Longer Ratio
  • Less pull but holds gear longer
  • More speed before shifting up
03 // Alignment
Camber
Front / Rear
← Left
More Negative
  • More grip in corners
  • Worse straight-line braking and accel
  • Smaller contact patch on straights
Right →
More Positive
  • Better straight-line traction
  • Unstable in corners
  • Almost always wrong direction
Sweet Spot Slight negative for most builds. Around -1.0 to -2.5 degrees on both ends.
Toe
Front / Rear
← Left
Toe Out
  • Faster turn-in response
  • Less stable, twitchy
  • More tire scrub and wear
Right →
Toe In
  • More straight-line stability
  • Slower turn-in response
Warning Toe is twitchy in Forza Horizon. Keep close to 0.0 unless you're chasing very specific behavior.
Front Caster
Front Only
← Left
Low
  • Lighter, easier steering
  • Weaker self-centering
  • Less straight-line stability
Right →
High
  • Heavier steering, more feel
  • Stronger straight-line stability
  • Balances negative camber during corners
Sweet Spot Most builds run between 5.0 and 6.5. Higher is usually better.
04 // Suspension
Anti-Roll Bars
Front / Rear
← Left
Soft
  • More grip on that end of the car
  • More body roll on that end
Right →
Stiff
  • Less grip on that end of the car
  • Less body roll, sharper transitions
Rule Stiffer front = more understeer. Stiffer rear = more oversteer. Easiest way to balance the car.
Springs
Front / Rear
← Left
Soft
  • More grip on bumpy surfaces
  • More body roll and weight transfer
  • Better for rally and off-road
Right →
Stiff
  • Sharper response on smooth roads
  • Less body roll
  • Worse over bumps and curbs
Ride Height
Front / Rear
← Left
Low
  • Lower center of gravity
  • Better handling and aero
  • Risk of scraping on hills
Right →
High
  • More ground clearance
  • Worse on-road handling
  • Needed for off-road and rally
Note Japan's mountain roads have a lot of elevation. Don't fully slam unless you want to bottom out.
Damping (Rebound)
Front / Rear
← Left
Soft
  • Suspension extends slower after bumps
  • More grip on rough surfaces
Right →
Stiff
  • Suspension snaps back quickly
  • More responsive, can feel skittish
Bump Stiffness (Compression)
Front / Rear
← Left
Soft
  • Suspension compresses easier over bumps
  • Smoother ride, more comfortable
Right →
Stiff
  • Resists compression
  • Planted on smooth roads, harsh on bumps
Rule Bump is usually softer than rebound. Roughly 60 to 70 percent of rebound value.
05 // Aero
Downforce
Front / Rear
← Left
Low
  • Less drag, higher top speed
  • Less grip in high-speed corners
Right →
High
  • More grip at high speed
  • More drag, lower top speed
Rule Front max = fixes high-speed understeer. Rear max = fixes high-speed oversteer.
06 // Brakes
Brake Balance
Front Bias %
← Left
More Rear Bias
  • Rear locks easier
  • Helps rotate the car into corners
  • Less stable under hard braking
Right →
More Front Bias
  • Front locks easier
  • More stable braking in a straight line
  • Harder to rotate the car
Sweet Spot Around 50 to 55 percent front for most builds. AWD likes slightly more forward.
Brake Pressure
Overall Strength
← Left
Low
  • Less overall stopping power
  • Harder to lock tires up
  • More brake modulation and control
Right →
High
  • Stronger stopping power
  • Easier to lock up the tires
07 // Differential
Acceleration Lock
On Throttle
← Left
Low %
  • Wheels spin more independently
  • Easier to turn under throttle
  • Worse traction on corner exit
Right →
High %
  • Wheels locked together more
  • Better traction on corner exit
  • Car wants to push wide
Deceleration Lock
Off Throttle
← Left
Low %
  • Wheels free under braking
  • More rotation into corners
  • Less stable on entry
Right →
High %
  • Wheels locked under braking
  • More stable braking
  • Less rotation, more understeer
08 // Fix-It Cheat Codes
Problem
Car Understeers

Soften front ARB, stiffen rear ARB. Add more front aero. Run more negative front camber. Soften front springs.

Problem
Car Oversteers

Stiffen front ARB, soften rear ARB. Add more rear aero. Soften rear springs. Stiffen rear bump and rebound.

Problem
Car Bounces

Stiffen springs first. If still bouncy, stiffen rebound damping. Bouncing after bumps means rebound is too soft.

Problem
Car Feels Harsh

Soften bump stiffness. Soften springs slightly. Raise ride height 0.2 to 0.4 inches if you're scraping on hills.

Tune in This Order

Change one thing at a time so adjustments don't fight each other. Test between each change.

01Tires
02Springs
03Ride Height
04Alignment
05Anti-Roll Bars
06Damping
07Brakes
08Differential
09Aero
10Gearing