BMW M4 GT3 2022

TYRES

• Slick — Semislick-spec compound (GT3 slick), front 26.5 PSI cold, rear 26.3 PSI cold. Target hot pressure 27.5–28.0 PSI both axles. Optimal tyre operating temperature: 85–95°C (peak grip window). Blankets off — first flying lap must be treated as a warm-up lap; do not expect full grip until tyres cycle through 2–3 corners of load.

ELECTRONICS

• TC1: 4
• TC2: 1
• ABS: 4
• Brake Bias: 56.5% front (adjustable trackside, see below)
• Engine Braking: Medium (factory default map, no aggressive over-run lock)

SUSPENSION

• // FRONT
• Ride Height: 58 mm
• Wheel Rate FL / FR: 145,000 N/m / 145,000 N/m
• ARB: 55,000 N/m
• Brake Torque Multiplier: 100%
• Brake Bias: 56.5%
• // REAR
• Ride Height: 62 mm
• Wheel Rate RL / RR: 125,000 N/m / 125,000 N/m
• ARB: 35,000 N/m
• Diff Preload: 60 Nm
• Diff Coast: 0.45
• Diff Power: 0.65

DAMPERS

AERO

• Front splitter: 2 (of available steps)
• Rear wing: 4 (of available steps, biased for Döttinger Höhe top speed vs Karussell/Brünnchen stability compromise)
• Downforce level: Medium-low — prioritizes top speed on Döttinger Höhe while retaining enough rear plant for Fuchsröhre compression and Schwedenkreuz
• Brake ducts: 3 (front) / 2 (rear) — single lap, minimal thermal concern, biased toward disc temp stability under the long braking zones (Adenauer, T13)

KEY SETUP NOTE

• On a single hot lap with cold tyres and no blanket heat, the rear ARB and diff coast setting are your safety net through Fuchsröhre and Flugplatz — too stiff/locked and the rear will snap the moment it goes light over the crest before the tyre is fully in its window; the slightly softer rear roll stiffness here trades ultimate Karussell rotation for a rear axle that stays predictable when it matters most.

TRACK GUIDE

• Hatzenbach: carry momentum, use the compliant front end to ride the bumps flat — lift-and-reapply throttle rather than full lift, the M4 GT3's neutral balance rewards smoothness here even in attack mode.
• Flugplatz/Schwedenkreuz: commit flat-out, but be ready for the rear to go light over the crest — trust the setup, do not lift mid-crest or you unsettle the platform.
• Fuchsröhre: brake before the compression, not during it — let the car settle into the compression fully loaded, then get back to power early for the fast right.
• Adenauer Forst: this is where late braking pays off — trail brake deep, rotate on entry, get the diff power lock working early on exit for traction onto the following straight.
• Karussell: take the banked inside line, slightly earlier turn-in than you think, use