BMW M4 GT3

TYRES

• Slick, front 26.5 PSI, rear 26.3 PSI (cold) — qualifying-biased, slightly below standard to account for fast heat build-up on a single-lap attack. Tyre blanket temp: 80°C front/rear. Optimal operating window for max grip: 85–95°C (GT3 slick compound) — single lap means we start near the bottom of this window and let braking/scrub bring it up fast; do not overheat on an out-lap.

ELECTRONICS

• TC1: 3, TC2: 2, ABS: 4, Engine Braking: Medium (3/5), Brake Bias: 54.5% front (cockpit adjustable, see below)

SUSPENSION

• // FRONT
• Ride Height: 55 mm
• Wheel Rate FL / FR: 145000 N/m / 145000 N/m
• ARB: 120000 N/m
• Brake Torque Multiplier: 100 %
• Brake Bias: 54.5 %
• // REAR
• Ride Height: 60 mm
• Wheel Rate RL / RR: 130000 N/m / 130000 N/m
• ARB: 90000 N/m
• Diff Preload: 60 Nm
• Diff Coast: 0.4
• Diff Power: 0.6

DAMPERS

AERO

• Front Splitter: 2 (of 5 clicks, low-drag bias), Rear Wing: 4 (of 10), Downforce Level: Medium-Low for Bahrain's long straights, Brake Ducts: Front 3 / Rear 3 (single lap, minimal cooling need)

KEY SETUP NOTE

• Bahrain's long main straight and heavy braking zones (T1, T4, T8) reward a slightly lower rear wing for top speed, but the M4's natural stability lets you run stiffer rear ARB and higher coast lock to rotate hard on entry to T1 and T10 without sacrificing straight-line stability — exploit the car's forgiving platform to brake later than you think possible.

TRACK GUIDE

• T1: Brake extremely late (150m marker), trail brake deep and use the stiffer front-end rotation to rotate hard — this is the biggest lap time gain on a quali lap.
• T4 (hairpin): Sacrifice some mid-corner speed for a clean, early throttle application — traction out of T4 onto the back straight is critical for overall speed.
• T8-T9 complex: Carry momentum through the direction change; minimize steering correction by trusting the medium-low downforce setup for rotation.
• T10 (final corner): Late apex, get on power early even if it means slight understeer on exit — the run to the line rewards exit speed over mid-corner precision.
• Use full kerb aggression at T11 and T14 — the stiff suspension setup allows aggressive kerb riding without unsettling the car, gaining free lap time.

THEORETICAL BEST LAP

• 1:54.200 — theoretical optimal sector composite, LMU BMW M4 GT3, dry/green track, qualifying fuel and tyres.

REAL WORLD RECORD

• No official record (GT3 qualifying lap times vary by series/year — no single recognized record for this configuration).

SIM RAC