THE RACE CAR

 

#962 Porsche Cayman GT4 (981)

 

Technical description Porsche Cayman GT4 (981)

ENGINE
• Aluminum six-cylinder rear-mounted boxer engine, rigid mounting
• 3,800 cm³; stroke 76.4 mm; bore 102.7 mm
• max. power: 283 kW (385 hp) at 7,400 rpm
• max. rpm: 7,800 rpm
• max. torque: 420 nm at 4,750 – 6,000 rpm
• compression ratio: 12.5 : 1
• Water cooling with thermal management for engine and gearbox
• Four valves per cylinder, adjustable camshaft phasing and variable valve timing variocam plus
• sequential multi-point fuel injection
• Fuel quality: minimum 98 octane, unleaded
• Dry-sump lubricatio
• rear silencer with central tailpipes
• variable intake system with adjustable resonance butterflies
• Twin pipe sport exhaust system featuring two central tailpipes

TRANSMISSION
• rear wheel drive
• igidly mounted six-speed pDK-gearbox (DcT, dual clutch transmission)
• limited slip differential optimized for racing

BODY SHELL
• Lightweight body featuring intelligent aluminium-steel composite design
• Fully integrated roll-cage complying with Fia homologation regulations for safety cages
• rear deck with quick release fasteners
• 100 liter fuel cell (FT3 safety fuel cell) and „Fuel-cut-off“ safety valve in accordance with Fia regulations

SUSPENSION
• mcpherson suspension strut
• 5 bolt wheel hubs
• reinforced track rods (front)
• electrohydraulic power steering with variable steering ratio and steering impulse (front)

BRAKE SYSTEM (PFC)
• aluminum, mono-bloc six-piston racing calipers with ‘anti knock off’ piston springs
• ventilated and grooved 380 mm brake discs mounted on aluminum disc bells
• motorsport brake pads

WHEELS/TIRES
• one piece forged alloy rims
• Michelin tires

ELECTRICS
• Porsche GT4 instrument cluster including typical motorsport display elements
• Race ABS
• Traction control

WEIGHT/DIMENSIONS
• Total weight: 1.290 kg (minimum weight)
• Total length: 4.438 mm
• Total width: 1.810 mm
• Total height: 1.256 mm
• Wheelbase: 2.476 mm