Porsche 911 GT3 Cup (Type 991)
The Porsche 911 GT3 Cup is the motorsport version of the new 911 GT3 (Type 991).
The near-standard race car is based on the seventh generation of the 911. The Porsche 911 GT3 Cup is powered by a 3.8-litre, six cylinder boxer engine which, due to the weight optimized modular race exhaust system, generates 460hp (338 KW) at 7,500 revs per minute, ten horsepower more than its predecessor. Power is delivered to the rear axle via a race clutch and a Porsche Motorsport designed six-speed dog-type gearbox with a mechanical limited slip differential. For the first time in a Porsche makes cup race car, gear shifting is activated with paddle shifts on the steering wheel. The single piece race wheels with centre mount were also newly designed by Porsche Motorsport. The width of the Michelin race slicks was increased by two centimetres to 27 centimetres at the front and by ten millimetres at the rear axle to now measure 31 centimetres.
Compared to its predecessor, the wheelbase has grown by 100 millimetres, improving handling at the limit, while Porsche Motorsport newly designed the forged single-piece 18 inch race rims with central locking. The new racing brake system improves the endurance qualities of the 911 GT3 Cup, and the internally vented and slotted steel brake discs are operated by aluminium six-piston racing calipers in the front, and four-piston units at the rear.
Safety features have also been further enhanced, and drivers are protected by a newly calculated safety cage and newly designed race seat, while a rescue hatch in the roof enables easy access and extrication.
Like the road going version, the body of the new 911 GT3 Cup combines maximum rigidity with low weight thanks to its aluminium-steel construction, and weighs in at just 1,175 kilograms.