Porsche 911 GT3 Cup (992)

TYRES

• Compound: Wet
• Front Pressure: 26.5 PSI
• Rear Pressure: 26.0 PSI
• (No tyre blankets in AC Evo — tyres start cold, build temp gradually; manage first 2 laps carefully)
• Optimal operating temp (wet compound): 55–70°C

ELECTRONICS

• TC: 6
• ABS: 6
• Engine Braking: Low (reduce to minimize rear instability on wet trail-braking)
• Brake Bias: 56.5% (adjustable -1% as fuel burns)

SUSPENSION

• // FRONT
• Ride Height: 65 mm
• Wheel Rate FL / FR: 75,000 N/m / 75,000 N/m
• ARB: 12 N/mm
• Brake Torque Multiplier: 90%
• Brake Bias: 56.5%
• // REAR
• Ride Height: 70 mm
• Wheel Rate RL / RR: 85,000 N/m / 85,000 N/m
• ARB: 8 N/mm
• Diff Preload: 30 Nm
• Diff Coast: 0.5
• Diff Power: 0.3

DAMPERS

AERO

• Front Splitter: 2 (low-med, wet balance priority)
• Rear Wing: 5 (increased for wet stability through Eau Rouge/Pouhon)
• Downforce Level: Medium-High (wet compromise — stability over peak speed)
• Brake Ducts: Front 4 / Rear 3 (wet reduces brake temp needs but maintain flow to avoid water pooling issues)

KEY SETUP NOTE

• In the wet, Spa's elevation changes (Eau Rouge, Raidillon) amplify weight transfer — this 992 Cup car wants a slightly softer front ARB and higher rear ride height than dry setup to prevent snap oversteer on rear-engine weight transfer through Raidillon's compression and exit; prioritize mechanical grip and predictability over outright aero in the wet since visibility and standing water make aggressive late-apex commitment risky.

TRACK GUIDE

• La Source: brake earlier than dry instincts dictate — wet grip levels drop 30-40%; focus on a clean, straight-line braking input to avoid lockups, then get back to power progressively for the run to Eau Rouge.
• Eau Rouge/Raidillon: in the wet, this is nearly flat only if committed early and the car is stable — any hesitation or mid-corner lift can snap the rear; if in doubt, lift slightly before turn-in, not mid-corner.
• Pouhon (double-left): trail-brake smoothly, respect reduced front grip — aggressive late braking here in the wet is a common spin point; prioritize rotation through smooth steering inputs over outright late braking.
• Bus Stop Chicane: traction zone is critical for the pit straight — get the car pointed early and prioritize throttle application over outright minimum speed; wet traction out of slow corners is where lap time is won.
• Overall: tyre deg in wet is less about thermal degradation and more about aquaplaning risk — manage line choice to stay out of standing water on the racing line, especially at Blanchimont and the Bus Stop.