Porsche 911 GT3 Cup (992)

• Note: Porsche 911 GT3 Cup (992) is a spec one-make cup car — stiffer, more restricted setup window than GT3-R. Values below reflect realistic Cup car adjustability (narrower ranges, fixed-ish aero, spec dampers) while respecting the AC Evo parameter scales given.

TYRES

• Compound: Michelin Slick (Cup spec, Medium)
• Front Pressure: 27.5 PSI
• Rear Pressure: 27.0 PSI
• No tyre blankets (AC Evo)
• Optimal operating temp: 85–95°C (peak grip window, falls off sharply above 105°C)

ELECTRONICS

• TC: 4 (aggressive but controlled rear traction on Eau Rouge/Rivage exit)
• ABS: 5 (strong support for late braking into La Source/Les Combes)
• Engine Braking: Medium (fixed map 2 of 3 — stability over outright rotation)
• Brake Bias: 59.5% front

SUSPENSION

• // FRONT
• Ride Height: 58 mm
• Wheel Rate FL / FR: 145000 N/m / 145000 N/m
• ARB: 22 N/mm
• Brake Torque Multiplier: 100%
• Brake Bias: 59.5%
• // REAR
• Ride Height: 62 mm
• Wheel Rate RL / RR: 130000 N/m / 130000 N/m
• ARB: 16 N/mm
• Diff Preload: 40 Nm
• Diff Coast: 0.6
• Diff Power: 0.35

DAMPERS

AERO

• Front: fixed Cup splitter, no adjustable wing element (ride height is primary front aero tool)
• Rear Wing: Position 2 of 3 (medium-high — Spa demands drag tradeoff but rear stability through Eau Rouge/Blanchimont outweighs Kemmel top speed loss)
• Downforce Level: Medium-High (fixed spec aero package)
• Brake Ducts: Front 2 / Rear 3 (manage front disc temps under heavy braking load at La Source/Les Combes, keep rears cooler for consistency over stint)

KEY SETUP NOTE

• The 992 Cup's rear-biased mass and fixed aero package make Eau Rouge/Raidillon the defining corner of the lap — slightly higher rear ride height (62mm) and softer rear ARB than a GT3-R trade a little mid-corner rotation for a planted compression through the kerbs, which is essential since this car has no traction control sophistication or active aero to bail you out if it steps out at 260km/h.

TRACK GUIDE

• La Source: brake extremely late but in a straight line — Cup car locks fronts easily with ABS5, trail-brake only slightly to rotate, then get on power early for Kemmel run.
• Eau Rouge/Raidillon: committed flat-ish approach, stay central/slightly left on entry, let the setup's rear stability do the work — lifting mid-compression is slower and riskier than committing.
• Les Combes: this is where Cup races are won/lost in traffic — late aggressive brake, rotate on entry kerb, prioritize exit traction onto the back straight over apex speed.
• Pouhon: needs patience — trust the medium-high rear wing setting for a stable platform, carry speed through first apex rather than attacking second apex too early.
• Bus Stop chicane: manage entry speed over the big kerb — this Cup suspension (stiffer than GT3-R) will unsettle hard on aggressive kerb strikes; smooth hands here preserve tyre life late in the race.