Porsche 911 GT3 Cup 4.0

TYRES

• Hard Slick, F 1.95 bar, R 1.90 bar — cold set pressures for 14–15°C track/air; tyre blanket 70°C if permitted by session rules (Cup cars often run without blankets — if mandatory no-blanket session, start pressures F 2.00 / R 1.95 bar to compensate for cold build-up). Optimal operating window: 85–95°C for peak grip on this compound.

ELECTRONICS

• TC: N/A (Porsche Cup 4.0 — no traction control fitted)
• ABS: N/A (no ABS — mechanical brake balance only)
• Brake Pressure: 100%
• Brake Bias: F 58% / R 42%

DRIVETRAIN

• Fuel Map: Map 1 — standard mixture, full attack, no lift required for one-lap pace
• Gear Ratios: 1st 2.923 / 2nd 2.056 / 3rd 1.593 / 4th 1.296 / 5th 1.094 / 6th 0.971 — Final Drive 3.444

SUSPENSION

• // FRONT
• Ride Height: 55 mm
• Wheel Rate FL / FR: 145000 N/m / 145000 N/m
• ARB: 28 N/mm
• Brake Torque Multiplier: 100%
• Brake Bias: 58%
• // REAR
• Ride Height: 60 mm
• Wheel Rate RL / RR: 130000 N/m / 130000 N/m
• ARB: 18 N/mm
• Diff Preload: 30 Nm
• Diff Coast: 0.6
• Diff Power: 0.3

DAMPERS

AERO

• Front splitter: max attack (fixed/no adjustment typical on Cup car — confirm in-game slider, set to full stiff/low if adjustable)
• Rear wing: 2nd-highest notch (high downforce bias for Brands GP's fast sweepers — Clearways, Hawthorn, Westfield)
• Downforce Level: High — stability through Druids-to-Graham Hill transitions prioritized over straight-line speed on Brabham/Pilgrims

KEY SETUP NOTE

• The cold 14–15°C track temperature means tyre warm-up is critical — this Cup car has no TC/ABS, so a slightly front-biased brake setup (58/42) combined with high coast diff lock keeps the rear planted into Paddock Hill and Surtees under trail-braking, preventing snap oversteer before the tyres reach full operating temperature.

TRACK GUIDE

• Paddock Hill Bend: brake hard in a straight line from ~280 km/h, trail off smoothly — blind crest on exit rewards commitment but punishes early throttle.
• Druids: this is a GP-length lap, not Indy — Druids here is reached via Hawthorn/Westfield, less critical than on Indy config; focus traction zone is Clearways onto the pit straight.
• Graham Hill Bend: late apex, trail-brake rotation — carrying too much speed here compromises the Surtees/Hawthorn sequence that follows.
• Hawthorn & Westfield: fast, flowing — minimum steering input, let the car ride the kerbs, this sector is where high-speed stability from the wing setup pays off.
• Clearways: exit speed is the lap-time maker — sacrifice a tenth on entry to maximize throttle application for the long pit straight run to Paddock Hill.