Porsche 911 Turbo 3.6 (964) — Power Package

TYRES

• Compound: Semi-slick (Power Package street-legal spec), Front 29.5 PSI, Rear 27.5 PSI
• No tyre blankets in AC Evo. Optimal tyre operating temp: 85–95°C for peak grip on this semi-slick compound.
• Camber: Front -3.5°, Rear -2.3°
• Toe: Front -0.05° (toe-out), Rear +0.15° (toe-in)

ELECTRONICS

• TC: OFF (0) — aggressive hot lap, rear-engine traction allows driver-modulated throttle
• ABS: 2 (minimal intervention, period-correct 964 feel, late braking requires some backup)
• Engine Braking: Medium (stock ECU map, no adjustable engine braking on 964)
• Brake Bias: 58% front (manual adjuster)

SUSPENSION

• // FRONT
• Ride Height: 95 mm
• Wheel Rate FL / FR: 26000 N/m / 26000 N/m
• ARB: 14 N/mm
• Brake Torque Multiplier: 100%
• Brake Bias: 58%
• // REAR
• Ride Height: 105 mm
• Wheel Rate RL / RR: 32000 N/m / 32000 N/m
• ARB: 14 N/mm
• Diff Preload: 60 Nm
• Diff Coast: 0.6
• Diff Power: 0.4

DAMPERS

AERO

• Front: Stock 964 Turbo splitter, no adjustable front wing (fixed, sealed to minimize lift)
• Rear: "Whale tail" fixed rear wing — high downforce position (fixed angle, no clicks — factory Turbo wing geometry)
• Downforce level: Low-moderate by modern standards, biased toward rear for high-speed stability at Nordschleife speeds
• Brake ducts: Fully open (max cooling, position 1/1 — long lap, big braking zones, air-cooled turbo motor needs airflow too)

KEY SETUP NOTE

• The 964 Turbo's rear-engine weight bias (nearly 60% rear) combined with turbo lag means you must be fully committed to throttle before the boost spikes — get the car rotated and pointed early, especially in the Veedol chicane and Bit-Kurve, because once boost hits mid-corner on a 964 Turbo it will try to swap ends; stabilize with rear ride height and coast-side diff rather than lifting.

TRACK GUIDE

• Respect turbo lag: get on throttle 0.2-0.3s earlier than you think through Hocheichen, Flugplatz, and Schwedenkreuz exits to have boost ready for the following straight — this car rewards anticipation over reaction.
• Brake in a straight line before Adenauer Forst and Bergwerk — the 964's swing-axle-influenced rear geometry snaps quickly if trail-braked aggressively into these tighter corners.
• Through Fuchsröhre and Flugplatz, the car will go light — don't lift, trust the rear wing, but be ready to catch a slide with early, smooth opposite lock rather than aggressive correction.
• Pflanzgarten and Stefan-Bellof-S are where fearless commitment over the crests pays off — the 964's short wheelbase makes it very rotatable, use that for a tighter line than modern GT3 cars.
• Karussell: use the banking, keep it loaded, and get back to power progressively — turbo lag punishes an early stab of throttle with a bog, then a late surge that unsettles the rear.