The 2022 Porsche 718 Cayman GT4 RS is a track toy in Forza Horizon 6. Find this car build for circuit racing down below.

This GT4 RS model comes in S1 class with RWD and rear engine with 737 PI which leaves us 63 PI to upgrade the car for stability and better handling for all the circuits.
Table of Contents
22’ Porsche GT4 RS Upgrade List
Body Kits and Conversion
- Engine Swap: 4.0L F6
Tires and Rims
- Tire Compound: Slick Race
- Front Tire Width: 255mm
- Rear Tire Width: 365mm
Drivetrain
- Driveline: Race
- Differential: Race Diff
Platform and Handling
- Brakes: Race
- Weight Reduction: Sport
Engine
- Flywheel: Race
22’ Porsche GT4 RS Tune List
Here is a balanced S1-class circuit racing tune for the 2022 Porsche 718 Cayman GT4 RS. This setup focuses on stability, predictable rotation, and maximizing the grip from the slick race tires.
Tire Pressure
- Front: 28.0 PSI
- Rear: 28.0 PSI
Lower tire pressure creates a larger "footprint" on the road. This gives the tires more grip so the car sticks better when going around sharp corners.
Alignment
- Camber Front: -1.8°
- Camber Rear: -1.2°
- Toe Front: 0.1° (Out)
- Toe Rear: 0.0°
- Front Caster Angle: 6.0°
Tilting the wheels inward slightly (Camber) keeps the tires flat on the road when the car leans in a turn. Pointing the front wheels slightly outward (Toe Out) helps the car start turning faster, while Caster keeps the steering stable at high speeds.
Antiroll Bars
- Front: 18.00
- Rear: 38.00
Antiroll bars stop the car from leaning too much. Keeping the front softer gives the front wheels more grip to steer, while a stiffer rear helps the back of the car rotate smoothly through corners.
Springs & Ride Height
- Springs Front: 420.0 LB/IN
- Springs Rear: 580.0 LB/IN
- Ride Height Front: 4.5 IN
- Ride Height Rear: 4.6 IN
The rear springs are stiffer because the engine's weight sits toward the back of the car. Lowering the ride height brings the car closer to the ground so it handles better, but we leave a tiny bit of room so it does not scrape on bumps.
Damping
- Rebound Stiffness Front: 9.0
- Rebound Stiffness Rear: 11.0
- Bump Stiffness Front: 5.4
- Bump Stiffness Rear: 6.6
Rebound controls how fast the car's springs bounce back up, while bump controls how fast they squish down. Setting these correctly keeps the tires pressed firmly against the road over bumps and curbs.
Aero
- Downforce Front: 180 LB
- Downforce Rear: 260 LB
Air pushes down on the car to press it into the ground. More downforce in the back keeps the rear tires from sliding out, while moderate front downforce helps the nose point where you want it to go.
Brake
- Braking Force Balance: 48% (Front)
- Braking Force Pressure: 110%
Sending slightly more braking force to the rear wheels helps the car slow down more evenly without sliding. The pressure is set just high enough to stop quickly without locking up the brakes.
Differential
- Rear Acceleration: 50%
- Rear Deceleration: 15%
The differential decides how much power goes to each rear wheel. 50% Acceleration helps you speed out of corners without spinning the tires, and 15% Deceleration allows the car to turn easily when you lift your foot off the gas pedal.
22’ Porsche GT4 RS Tune Code

If you like our tune and want our exact build, put this code in: Tune Browser > Search > Share Code > and input our share code.
- Weight: 3,120 lb > 2,866 lb
- Peak Power: 493 hp > 518 hp
- PWR: 0.16 hp/lb > 0.18 hp/lb
- Lateral Gs: 2.0- > 2.2
- Performance Class: S1 737 > S1 800
Overall, we build this GT4 RS for a more refined control in any circuit that you can eat all the curbs easily without the risk of spinning, smoother turn it and exit corners, and fast straight speed so you can draft opponents ahead.
End of Guide.
