Description Vehicle: Subaru WRX STI NR4 (R4) Track: Perth and Kinross, Scotland Surface: Gravel (Dry / Medium) Driving Style: Balanced & Precise (Great braking, acceleration, and turn-in) After extensive testing across the Perth and Kinross forest stages, I've finalized this setup for the Subaru WRX STI NR4. Designed specifically for Dry Medium Gravel, this tune focuses on keeping the car planted through the repeated forest undulations while remaining sharp and responsive in the tight, technical sections. The car feels stable yet agile, offering precise turn-in and confident braking. Whether you're threading through the trees or flying over crests, this setup delivers a predictable, momentum-friendly experience suited to both time attacks and rally raids.
NR4/R4
All stages
00'00"000
Tyres not specified
Created
| (Front) Toe Angle | -0.20 ° |
|---|---|
| (Front) Camber Angle | -1.65 ° |
| (Rear) Toe Angle | 0.40 ° |
| (Rear) Camber Angle | -1.25 ° |
| Braking Force | 3000 N-m |
|---|---|
| Brake Bias | 58 % |
| (Front) LSD Driving Lock | 32 % |
|---|---|
| (Front) LSD Braking Lock | 20 % |
| (Front) LSD Preload | 33.33 N-m |
| (Centre) LSD Driving Lock | 36 % |
| (Centre) LSD Braking Lock | 28 % |
| (Centre) LSD Preload | 25.00 N-m |
| (Rear) LSD Driving Lock | 40 % |
| (Rear) LSD Braking Lock | 32 % |
| (Rear) LSD Preload | 41.67 N-m |
| 1st Gear | 0.356 |
|---|---|
| 2nd Gear | 0.489 |
| 3rd Gear | 0.649 |
| 4th Gear | 0.850 |
| 5th Gear | 1.080 |
| Final Drive | 0.215 |
| (Front) Slow Bump | +3 |
|---|---|
| (Front) Fast Bump | +4 |
| (Front) Bump Zone Division | 0.60 mps |
| (Front) Slow Rebound | +3 |
| (Rear) Slow Bump | +2 |
| (Rear) Fast Bump | +3 |
| (Rear) Bump Zone Division | 0.60 mps |
| (Rear) Slow Rebound | +2 |
| (Front) Ride Height | 28.12 mm |
|---|---|
| (Front) Spring Rate | 102.69 N/mm |
| (Front) Anti-Roll Bar | 11.25 N/mm |
| (Rear) Ride Height | 28.12 mm |
| (Rear) Spring Rate | 65.11 N/mm |
| (Rear) Anti-Roll Bar | 7.00 N/mm |
Key Characteristics: 1. Alignment:A precise Rear Toe-in of +0.40° acts as a geometric stabilizer. It gently keeps the rear end planted during high-speed lift-off transitions without sacrificing the car's ability to pivot in tight hairpins. Up front, an aggressive -1.65° camber maximizes contact patch in fast Medium-Gravel sweepers. 2. Differential:The Rear LSD Braking Lock is set to a moderate 32% (raised from 28% in v5.0). This provides enough locking force to prevent snap oversteer on loose patches during lift-off, while staying compliant enough for smooth rotation on entry. The Centre Driving Lock sits at the 36% cap for maximum power transfer, with a 40% Rear Driving Lock to put the power down hard. 3. Suspension & Damping:The front Anti-Roll Bar is kept at a firm 11.25 N/mm to control body roll, while Ride Height is set to a compliant 28.13 mm (not maxed) with relatively soft spring rates (F 102.69 / R 65.11 N/mm) to keep the tyres planted over Medium-Gravel chop. Firm Fast Bump damping (F +4 / R +3) prevents bottoming-out on the forest's repeated undulations. 4. Brakes:58% front bias allows for aggressive trail-braking to rotate the car into corners, supported by a braking force of 3,000 N·m optimized for dry gravel. 5. Gearing:0.215 final drive keeps the engine in its optimal powerband (sweet spot 5,800–6,800 rpm), covering both the tight technical sections and the long, flowing forest straights. 5th gear is extended to 1.080 for extra top-end without starving the lower gears. 6. Best For:Drivers looking for a predictable, confidence-inspiring car that stays stable under braking and lift-off on Dry Medium Gravel, without feeling overly stiff or "planted" in slow corners. 7. Pro-Tip:If you still feel the rear getting slightly light during high-speed lift-off, keep a tiny bit of throttle applied (maintaining drivetrain load) rather than completely lifting off. This setup is designed to work best with a smooth, momentum-based driving style!
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