The 2023 Porsche 911 GT3 RS is a track toy car in Forza Horizon 6. Find this car upgrade, tune guide, and tune code for circuit racing down below.
This porsche model comes in S1 class with 758 PI, this leaves us 42 PI to upgrade the car for better handling in circuits and faster for straight. This car is RWD and rear engine so be mindful of how it handles in and out of turns.
Table of Contents
23’ Porsche 911 GT3 RS Upgrade List
Tires and Rims
- Rear Tire Width: 365mm
Drivetrain
- Driveline: Race
Platform and Handling
- Weight Reduction: Sport
Engine
Intake: Race
Flywheel: Race
23’ Porsche 911 GT3 RS Tune List
Here is an upgrade and tuning setup for the 2023 Porsche 911 GT3 RS in the S1 800 class, optimized for circuit racing. Since this vehicle features a rear-engine, rear-wheel-drive (RWD) layout, the build focuses on managing rear-end stability while maximizing cornering speed.
Tire Pressure
- Front: 27.5 PSI
- Rear: 27.0 PSI
Why this works: Lower tire pressure makes the tires softer so they touch more of the road, giving you better grip.
Alignment
- Camber Front: -1.8°
- Camber Rear: -1.2°
- Toe Front: 0.0°
- Toe Rear: 0.0°
- Front Caster Angle: 6.0°
Why this works: This tilts the tires slightly inward so that when the car leans in a turn, the tires stay flat on the ground.
Antiroll Bars
- Front: 18.00
- Rear: 38.00
Why this works: Keeping the front soft and the rear stiff helps the car turn its nose into corners much faster.
Springs
- Front Springs: 380.0 LB/IN
- Rear Springs: 680.0 LB/IN
- Ride Height Front: 4.6 IN
- Ride Height Rear: 4.6 IN
Why this works: Stiffer rear springs support the heavy engine in the back, while lowering the car keeps it from tipping over in corners.
Damping
- Rebound Stiffness Front: 10.5
- Rebound Stiffness Rear: 12.5
- Bump Stiffness Front: 3.2
- Bump Stiffness Rear: 4.2
Why this works: This controls the bounce of your car so it stays stable and does not jump wildly over bumps.
Aero (Downforce)
- Downforce Front: 240 LB
- Downforce Rear: 330 LB
Why this works: The air pushes down on the car like an invisible hand, keeping it glued to the track at high speeds.
Brake
- Braking Force Balance: 50% (Center)
- Braking Force Pressure: 100%
Why this works: This balances the stopping power evenly between the front and back wheels so you do not slide out when slowing down.
Differential
- Rear Acceleration: 42%
- Rear Deceleration: 18%
Why this works: This helps the two rear wheels spin at the right speeds so you do not spin out when you press the gas pedal coming out of a turn.
23’ Porsche 911 GT3 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: 3,197 lb > 2,757 lb
- Peak Power: 518 hp > 546 hp
- PWR: 0.16 hp/lb > 0.20 hp/lb
- Lateral Gs: 2.2 > 2.3
- Performance Class: S1 758 > S1 800
Overall, when first using our tune, you will notice how easier it is for the car to turn, more stability when getting out of corners, and smoother acceleration so that you won’t spin out.
End of Guide.
