Porsche revealed that starting 2017, it will offer the 911 (991) GT3 Cup with an improved drive. Already considered as the most produced GT racing vehicle in the world, this model made use of a purebred motorsport technology that allowed it to be fitted with a compact engine that comes with direct fuel injection allowing for an output of 485 hp (357 kW). In addition, this 6-cylinder 4-liter flat engine has been placed on the rear.
In terms of design, both the apron in the front and the rear section have been redesigned in order to enhance downforce. As a result, this allowed the 911 GT3 Cup to offer better performance and traction. Some features seen in the previous model however have been retained in this version like the wide wing in the rear that measures 184 centimeters. It has the same wheels in terms of dimensions. It remains equipped with the 18-inch one-piece racing wheels that have a central locking mechanism. The 270 mm. Michelin racing tires are fitted on the front axle while the 310 mm. tires are on the rear axle.
What is new is that the 911 GT3 Cup weighs 1,200 kilograms. This is all due to the use of an aluminum and steel composite which gave it a body that is both lightweight and rigid. Porsche also disclosed that a number of innovative features have been put in to ensure that engine performance and efficiency are enhanced.
This in turn improves the naturally aspirated engine’s durability under racing mode and even lowers the cost of maintenance. For the first time in Porsche’s history, this new version will have a central oil feed and even a valve drive that has been rigidly mounted on the rocker arms. Additionally, by having the oil centrifuge integrated, the oil defoaming in the engine is optimized. Meanwhile to help ensure that the rigidity is increased, a crankshaft has been fitted in.
As expected from Porsche, the engineering team also made sure to put attention during development driver safety. On the inside, one can see the racing seat comes in a bucket-style and clearly has heavy moulding on the shoulder region and head area. In terms of driver protection, there is a sold safety cage that makes sure of this. In order to comply with the most current FIA standards, the engineers made sure to make the rescue hatch located in the roof larger. Doing this meant that it would be easier to deliver the initial treatment and manage its recovery should an accident occur.
The 911 GT3 Cup is manufactured at the brand’s main facility located in Stuttgart-Zuffenhausen, the same production line where the 911 road car is also made. However the standard race tuning is done at the Weissach motorsport center. This is where the models are tested comprehensively through a professional race driver and if it meets the requirements, they’re later delivered to the customers. Since 1998, a total of 3,031 units have been made under the 996, 997, and the 991 range. Porsche said that the 911 GT3 Cup will be participating in the 2017 race season first under the Porsche Mobil 1 Supercup, typically conducted together with the Formula 1 races. It will then race in the Porsche Carrera Cup Deutschland and will even make an appearance in the North American circuits. By 2018, Porsche projects that the 911 GT3 Cup will participate in other brand cups. Overall, a total of 20 race series is being organized by Porsche for its worldwide customer teams.