Porsche Carrera Cup – 991.2 GT3 Cup Car
Specifications:
Concept
Single-seater production-based race car
Base model 911 GT3
Engine:
Aluminium six-cylinder horizontally opposed engine, rear-mounted
Sealed
3,996 cm3; stroke 81.5 mm; bore 102 mm
Max. power 357 kW (485 hp) at 7,500 rpm
Max. torque 480 Nm at 6,250 rpm
Single-mass flywheel
Coolant circuit with thermostat
Four valves per cylinder
Variable cam phasing (intake and exhaust)
Direct fuel injection
Fuel grade Super unleaded, minimum 98 RON
Dry-sump lubrication
Electronic engine management (Bosch MS 4.6 NG)
Race exhaust system with regulated race catalytic converter
Rear silencer with central twin tailpipe
Electronic throttle
Transmission:
Porsche six-speed sequential dog-type transmission
Sealed
Gear ratios Ring & pinion gear 14/22 i = 1.571; Final drive 17/41 i = 2.412; 1st gear 13/41 i = 3.154; 2nd gear 17/40 i = 2.353; 3rd gear 19/36 i = 1.895; 4th gear 19/29 i = 1.526; 5th gear 24/30 i = 1.250; 6th gear 34/35 i = 1.029
Internal pressure-oil lubrication with active oil cooling by oil-water heat exchanger
Mechanical differential lock
Triple-disc sintered metal racing clutch
Pneumatic gearshift activation (paddle shift)
Bodyshell:
Intelligent lightweight construction in aluminium and steel composite
Weld-in roll cage, certified compliance with FIA homologation regulations for safety cages
Front lid with two air intakes for cockpit ventilation, quick-release catches
Removable roof section in compliance with the latest FIA safety regulations
Fastening point preparation for central safety net attachment
Pickup point for lifting device
Modified and widened 911 GT3 wings
Enlarged rear wheel arches
Modified and widened 911 GT3 front apron with spoiler lip
Modified 911 GT3 rear apron with integral rain light in compliance with FIA homologation regulations
Lightweight exterior: Carbon-fibre reinforced plastic doors with SportDesign mirrors; Carbon-fibre reinforced plastic rear lid with quick-release catches; Carbon-fibre reinforced plastic adjustable rear wing (nine positions); Polycarbonate rear side windows with air outlets; Polycarbonate rear screen
Rear underbody panelling with NACA air ducts for brake and driveshaft cooling
Modified 911 cockpit Weight-optimised magnesium subframe; Ergonomic driver-oriented centre console; Control switch trim with fluorescent lettering; Steering wheel with quick-release coupling, control panel and shift paddles; Adjustable steering column with steering angle sensor
Racing bucket seat with fore/aft adjustment Homologated to latest FIA requirements; Padding system for adapting to individual driver (delivered with size M)
Shock-absorbing roll cage safety cover for leg protection in drivers footwell
Six-point racing safety harness
100-litre fuel cell (FT3 safety fuel cell) and fuel cut-off safety valve in accordance with FIA regulations
Built-in air jack system (three jacks) with valve mountable on either side of the car
Chassis:
Forged control arms Optimised stiffness; Double-shear track rod connection; Heavy-duty spherical bearings
Wheel hubs with central locking device
Racing shock absorbers, non-adjustable
Double-blade-type adjustable anti-roll bars
Tyre pressure monitoring system
Front axle: McPherson suspension strut, adjustable for height, camber and toe; Forged and adjustable top mounts; Electrohydraulic power steering with external control function for easy car manoeuvring
Rear axle: Multi-link rear suspension, adjustable for height, camber and toe; Forged top mounts
Brake system:
Two independent brake circuits with brake pressure sensors for front and rear axle, adjustable by the driver via brake balance system
Derivative sensors & harness for retrofitting an ABS system
Multi-piece steel brake discs, internally vented and slotted, diameter = 380 mm
Racing brake pads
Optimised ventilation routing
Front axle Six-piston aluminium monobloc racing brake calipers with ‘anti-knock back’ piston springs
Rear axle Four-piston aluminium monobloc racing brake calipers with ‘anti-knock back’ piston springs
Wheels/tyres:
Front axle Single-piece centre-lock alloy wheels conforming to Porsche specification and design, 10.5 J x 18 ET 28; Treaded Michelin transportation tyres; tyre size: 27/65-18
Rear axle Single-piece centre-lock alloy wheels conforming to Porsche specification and design, 12 J x 18 ET 53; Treaded Michelin transportation tyres; tyre size: 31/71-18
Electrical system:
COSWORTH colour display ICD with integrated fault diagnostics
COSWORTH electrical system control unit IPS32
Electronic throttle
Fire extinguishing system (extinguishing agent: gas)
Battery 12 V, 70 Ah (AGM), leakproof, in co-drivers footwell
175 A alternator
Weight-optimised fan
Windscreen wiper with direct drive (intermittent and continuous operation)
Lighting system Bi-Xenon main headlights; LED daytime running lights; LED taillights and rain lights in compliance with FIA homologation regulations
Two additional switches in the centre console for additional power consumers
CAN connection (data logger, video system)
Weight/dimensions:
Total weight approximately 1,200 kg (2,645,55 lbs)
Total length 4,564 mm (179,01 inch)
Total width 1,980 mm (77,95 inch)
Total height 1,246 mm (49,06 inch)
Wheelbase 2,456 mm (96,69 inch)
History:
2SK has a couple of these awesome cars available. The Porsche Carrera Cup car is one of the longest standing and quickest one make race series which races around the world from the Formula 1 Supercup to various domestic and national championships.
A 2SK supplied car propelled its driver, Lee Frost, to 2nd in the 2020 Porsche Carrera Cup GB AM class in only his first season in the championship.
The car is available for a wide range events from corporate days and track days to full race events.