2015 Porsche 911 (991.1) GT3 Cup Car

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Year:
Make:
Model:
Vin:
Engine Hours:
Transmission Hours:
Car Arrives With:
3 sets of wheels

Engine layout Aluminum six-cylinder rear-mounted Boxer engine
Power 338 kW (460 hp)
Power transmission Porsche six-speed sequential dog-type gearbox
Brake system Aluminum six-piston racing calipers in mono-bloc design at front, Aluminum four-piston racing calipers in mono-bloc design at rear
Steering McPherson strut at front, Multilink suspension at rear, non-adjustable Racing shock absorbers, anti-roll bar
Safety Welded-in roll cage, FT3 safety fuel tank, fire extinguishing system

Engine:

  • aluminium six-cylinder rear-mounted boxer engine; bore: 102.7 mm
  • stroke: 76.4 mm
  • capacity: 3,800 cm³
  • max. power: 338 kW (460 hp) at 7,500/min
  • power output per litre 88.9 kW/l (121.1 hp/l)
  • max. rpm: 8,500/min
  • single-mass flywheel
  • water cooling with heat management for engine and gearbox
  • four valves per cylinder
  • sequential multi-point fuel injection
  • fuel: Superplus, unleaded
  • dry-sump lubrication
  • electronic engine management Bosch MS4.6
  • race exhaust system with regulated race catalytic converter
  • twin-branched muffler with centred exhaust pipes
  • electronic acceleration pedal

The newly-developed racing brake system improves the endurance qualities of the 911 GT3 Cup 991. The internally vented and slotted steel brake discs with a 38-centimetre diameter are operated by aluminium six-piston monobloc racing callipers in the front, and four-piston units at the rear.

Brake system:

Two independent brake circuits for front and rear axle; adjustable via brake balance system.

Front axle:

Aluminium six-piston racing callipers in monobloc design; multi-piece steel brake discs, inner-vented and slotted, 380 mm diameter; racing brake pads, optimised ventilation ducting.

Rear axle:

Aluminium four-piston racing callipers in monobloc design; multi-piece steel brake discs, inner-vented and slotted, 380 mm diameter; racing brake pads, optimised ventilation ducting.

In the race department at Weissach, the suspension underwent modifications to ensure higher precision and more stability at high speeds. Compared to its predecessor, the wheelbase grew by 100 millimetres, improving handling at the limit. PorscheMotorsport redesigned the single-piece 18 inch race rims with central locking. The width of the Michelin racing slicks at the front axle grew by two centimetres to now measure 27 cm, and at the rear axle by one cm to 31 cm.

Suspension:

Front axle:

McPherson suspension strut, adjustable in height, camber and track; forged strut with optimised stiffness, two-shear connection, heavy duty spherical bearings; wheel hub with centre lock; racing shock absorbers; forged supporting mounts; adjustable double-blade type anti-roll bar; power steering with electro-hydraulic pressure feed.

Rear axle:

Multilink suspension, adjustable in height, camber and track; forged strut with optimised stiffness, two-shear connection, heavy duty spherical bearings; wheel hub with centre lock; non-adjustable racing shock absorbers; forged supporting mounts; adjustable double-blade type anti-roll bar.

SAFETY

Engineers gave the further improvement of driver safety high priority again in the development of the new Cup vehicle. Drivers are protected by a redesigned safety cage and race seat, specially moulded around the head and shoulders and individually adjustable with the help of a padding system. A rescue hatch in the roof provides easy access for primary medical attention and for the extrication of the driver. As with the road-legal car, the body of the new 911 GT3 Cup combines highest rigidity with low weight thanks to its smart aluminium-steel composite construction. The latest 911 GT3 Cup weighs in at just 1,175 kilograms.

General:

Porsche builds the new 911 GT3 Cup on the same production line at the Porsche factory in Stuttgart-Zuffenhausen as the road-going 911. At the Motorsport Centre in Weissach, the race car gets a basic set-up for the circuits and is taken through its paces by a professional race driver. The Porsche 911 GT3 Cup is the world’s most-produced and best-selling race car, with well over 2,600 units manufactured since 1998.