Porsche 911 991 GT2 RS (2017-2018)Actual premiere: 2017 June 11, Los Angeles, Xbox/Forza 7 press event at the E3 Electronic Entertainment Expo
Official premiere: 2017 June 30, Goodwood Festival of Speed
Technical specification and comparison
|Modification||Engine||kW||lb-ft||Nm||Gearbox||60 mph||100 km/h||160 km/h||200 km/h||300 km/h||mph||km/h||kg||lb||W/lb||W/kg||Nordschleife|
|2017 911 991 GT2 RS without roll cage||3.8T||515||551||750||PDK 7-speed||2.7 sec.||2.8 sec.||5.8 sec.||8.3 sec .||22.1 sec.||211||340||1470||3241||159||350|
|2017 911 991 GT2 RS Weissach||3.8T||515||551||750||PDK 7-speed||2.7 sec.||2.8 sec.||5.8 sec.||8.3 sec .||22.1 sec.||211||340||1470||3241||159||350||6:47.3|
|2017 911 991 GT2 RS Clubsport||3.8T||515||551||750||PDK 7-speed||2.7 sec.||2.8 sec.||5.8 sec.||8.3 sec .||22.1 sec.||211||340||1500||3307||156||343|
|2010 911 997 GT2 RS Clubsport||3.6T||456||515||700||manual 6-speed||3.4 sec.||3.5 sec.||9.8 sec.||28.9 sec.||205||330||1370||3020||151||333||7:18|
|2017 911 991 GT3||4.0||368||338||460||PDK 7-speed||3.2 sec.||3.4 sec.||7.3 sec.||11.0 sec.||198||318||1430||3153||117||257||7:12.7 (not stock car)|
How a rear-wheel drive GT2 RS achieves the promised acceleration figures is unbelievable. The engine came from the Turbo S and was further tuned. The car has an intercooler water spray system. The exhaust system was made of titanium and weighs ~7 kg/15 lb less than the steel system in the Turbo. Like the 991 Turbo and the GT3, the GT2 RS has the weight-increasing, but hopefully time-winning, rear-axle steering system. The wheels and tyres measure exactly the same as on the 918 Spyder or the 991 GT3 RS: fronts are 9.5x20" with 265/35 tyres and rears 12.5x21" with 325/30 tyres. For the first time in a street legal Porsche, ball-joints were used in all chassis bearings. Carbon fibre reinforced plastic (CFRP) was used for the front lid, front wings, wheel housing vents, outer shells of the mirrors, roof panel, side air intakes, rear lid, rear ram-air intakes and rear spoiler. Typical to the RS Porsche, it was possible to order the 991 GT2 RS without audio system, navigation screen and air conditioning. In reality, cool head makes better lap times than would help you the few extra horses or marginally lower weight.
RS without roll cage and bucket seats
Although in USA we have agreed to a law that bans roll cages and no real-RS (RennSport, German word for racing) Porsches have been sold in the USA, it was the first time that RS Porsche didn't come with the roll-cage as standard in Europe. And that the RS could be ordered without the bucket seats. A racing car without bucket seats and a roll cage is not a racing car. When specified without the RS components, the car should be called just 911 GT2 instead of 911 GT2 RS.
The weight of the 991 GT cars was up compared to the 997 GT cars, so, the standard specification of the GT2 RS did not contain the Clubsport package in order to have lower weight on the spec sheet. The rather heavy Clubsport safety package includes the steel bolt-in roll cage including reinforcements with connection to bodyshell, 6-point racing harness for the driver, fire extinguisher and preparation for battery disconnect switch. The 991 GT2 RS is 100 kg/220 lb heavier without the Clubsport package than the 997 GT2 RS was with the Clubsport package. Considering the Clubsport package is around ~30 kg/66 lb, then the 991 GT2 RS is ~130 kg/290 lb heavier than the 997 GT2 RS was. Similarly equipped, the heavier 991 GT2 RS still has a 3% better power-to-weight ratio compared to the 997 GT2 RS.
To get the roll cage that was needed for 6-point harness and for added safety without adding weight to the car, the solution was the Weissach package. It uses titanium for the safety cage and magnesium for the wheels saving ~30 kg/66 lb compared to the Clubsport package cars. So, the Weissach version more or less retained the weight of the standard car, but had the needed safety equipment and unsprung masses reduced. The titanium safety cage designed for track day use saved 12 kg/26 lb compared to the steel cage, but was without motorsport approval. The lightweight wheels came straight from the 918 Spyder Weissach version saving 11.5 kg/25 lb compared to the forged aluminium wheels. Anti-roll bars and coupling rods used CFRP. There was a plaque with Weissach package logo on the dashboard and headrests were embroidered with Weissach package logo. The front lid and the carbon-weave finish roof were emblazoned with a central strip in the car color. Rear wing came with the large ‘PORSCHE’ logo. It was possible to order the Weissach package without the roll cage.
In high-speed acceleration the weight doesn't make much difference, but power does, and the 991 GT2 RS is clearly beating the already insane 997 GT2 RS there. The 991 GT2 RS has similar acceleration to 200 mph/320 km/h as the 918 Spyder supercar!
Because of the many unpainted carbon fibre parts, the car looks most serious in black. Of course, a GT2 RS is über-cool in every color, even if it looks childish.
Mark Webber said at the 2017 Goodwood Festival of Speed that the 991 GT2 RS is a "King Kong" and that he did 336 km/h (209 mph) on the Nürburgring.
2017 Nürburgring Nordschleife record 6:47.3
On September 20, 2017, the record time of 6:47.3 was achieved in the presence of a notary. It surpassed Porsche’s own expectations as at the start of the development process the target was set under 7:05. The new 911 record even beat Frank-Steffen Walliser's (Vice President Motorsport and GT Cars) previous baby, the 918 Spyder supercar, which had lapped the Nordschleife in 6:57. Do you even remember that the Carrera GT supercar could lap it in 7:28? OK, it wasn't the best-handling Porsche, but the difference between the supercar's 7:28 and the nine-eleven's 6:47 could be measured with a calendar as the racing drivers say. The already insane 997 GT2 RS could lap the Nordschleife in 7:18. The 991 GT2 RS is almost half a minute quicker than its predecessor. This is incomprehensible.
During the record attempts two cars were used by Lars Kern and Nick Tandy. They managed to do five laps under 6:50 and the record was done by Lars Kern, who has delivered Porsche Nordschleife records before. The new 911 GT2 RS Weissach lap record translates to a average speed of 184 km/h (114 mph).
Press launch event in Algarve, Portugal
In total 60 journalists from 19 countries had the chance to see, breathe, drive and praise the 991 GT2 RS at the Algarve race track in November 2017. How can a sportscar become crazier or more refined than this?
2018 Nürburgring Nordschleife record 6:40.3
13 months after the 991 GT2 RS Weissach version set a new lap record for street legal cars at the Nürburgring Nordschleife, Manthey Racing (MR) improved the record by 7 seconds on October 25, 2018. Minimal modifications were made: front spoiler side flics, rear spoiler, suspension, brake pads, brake lines, water tank, and for some reason factory magnesium wheels were replaced with MR magnesium wheels. Manthey Racing is a Porsche AG's subsidiary with 51% of the shares.
2019 Road Atlanta production car lap record 1:24,88
Article © James Herne / Stuttcars.com
911 991 GT2 RS - Machtwort
6/2017 · German
911 (991) GT2 RS
- Vector drawing 594 mm x 420 mm (A2), B/W
- Format: PDF
- Author: Margus Holland