Audi R8 LMS Ultra

TYRES

• Slick, Front 26.5 PSI cold / Rear 26.3 PSI cold. Target hot pressure: F 28.5 PSI / R 28.0 PSI. Blankets (if session allows): 80°C all round. Optimal operating window for max grip: 85–95°C (peak ~90°C) — for a single hot lap, aim to have tyres already near the top of this band entering the lap.

ELECTRONICS

• TC1: 3. TC2: 1. ABS: 4. Brake Bias: 54.5% front (adjustable trackside toward 55% for Stowe/Village stability). Engine braking: medium-high (hold stock/default map, do not soften — aids rotation under trail-brake).

SUSPENSION

• // FRONT
• Ride Height: 52 mm
• Wheel Rate FL / FR: 145,000 N/m / 145,000 N/m
• ARB: 7 (≈ 120,000 N/m equivalent step)
• Brake Torque Multiplier: 100%
• Brake Bias: 54.5%
• // REAR
• Ride Height: 55 mm
• Wheel Rate RL / RR: 125,000 N/m / 125,000 N/m
• ARB: 5 (≈ 90,000 N/m equivalent step)
• Diff Preload: 60 Nm
• Diff Coast: 0.45
• Diff Power: 0.35

DAMPERS

AERO

• Front splitter: 4 (of typical 0–6 range). Rear wing: 5 (of typical 0–8 range). Downforce bias slightly rear-weighted for Maggotts/Becketts stability while keeping Hangar Straight speed. Brake ducts: Front 2 / Rear 2 (minimal, single-lap tyre temp not a concern).

KEY SETUP NOTE

• The Maggotts-Becketts-Chapel sequence is the lap-defining corner — a slightly stiffer rear ARB and raised rear ride height (55mm) combined with firm rebound keeps the rear planted through the direction changes without triggering snap oversteer; sacrifice a little rear traction out of Vale/Luffield to protect this one sequence, since it is where the single lap is won or lost.

TRACK GUIDE

• Maggotts-Becketts: commit flat or near-flat through Maggotts, breathe the throttle fractionally into Becketts left-right transition — the car must stay rotated but planted; any lift here costs 2-3 tenths through Chapel.
• Stowe: one of the latest, hardest braking zones on the lap — brake deep in a straight line, trail into the apex, use the aggressive front bite to rotate late and get the car pointed for Vale.
• Village/Loop complex: sacrifice minimum entry speed for a clean, early rotation — this sets up Vale and Club exit, which is the long acceleration zone feeding Hangar Straight.
• Club (both instances): exit speed is everything — get the car straight early and ride the kerb on exit if needed; this defines top speed down Hangar Straight and Wellington Straight.
• Copse: must be taken flat in quali trim — any lift here costs more than any other single corner on the lap due to the speed carried into Maggotts.