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Concept
Single-seater production-based race car
Base model: 911 GT3
Engine
Aluminium six-cylinder horizontally opposed engine, rear-mounted
Sealed
3,996 cm
3; stroke 81.5 mm; bore 102 mm
Max. power: 357 kW (485 hp) at 7,500 rpm
Max. rpm: 8,500
Maximum torque: 480 Nm at 6,250 rpm
Single-mass flywheel
Water-cooled with thermal management for engine and transmission
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
The data.
Transmission
Porsche six-speed sequential dog-type transmission
Sealed
Gear ratios:
– Ring and 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 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 safet y cover for leg protection in driver’s foot well
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
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Aftersales packages from Porsche Motorsport
Exhaust system:
– pre-silencer
– open tailpipes
Endurance fuel tank upgrade
Fuel tank top plate with adapters for closed circuit fuel handling
External digital engine oil level display
Engine oil quick refill
Passenger seat for taxi rides
Auxiliary weight plates for car weight balancing
Window safety net in compliance with the latest FIA safety regulations
Centre safety net in compliance with the latest FIA safety regulations
Cockpit illumination
Start number illumination
Heated windscreen
Suspension travel sensor package
External charging cable
Power supply extension (connecting additional consumers)
Available at COSWORTH Electronics:
COSWORTH ICD display upgrade for endurance races
