Porsche 911 GT2
Encyclopedia
The Porsche 911
Porsche 911
The Porsche 911 is a luxury 2-door sports coupe made by Porsche AG of Stuttgart, Germany. It has a distinctive design, rear-engined and with independent rear suspension, an evolution of the swing axle on the Porsche 356. The engine was also air-cooled until the introduction of the Type 996 in 1998...

 GT2
is a sports car
Sports car
A sports car is a small, usually two seat, two door automobile designed for high speed driving and maneuverability....

 built by the German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 manufacturer Porsche
Porsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....

 since 1994. It is based on the 911 Turbo, and uses a similar twin-turbo
Twin-turbo
Twin-turbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. There are two commonly used twin turbo configurations: parallel twin-turbo and sequential twin-turbo...

charged engine, but features numerous upgrades, including engine upgrades, larger brakes, and stiffer suspension
Suspension (vehicle)
Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. Suspension systems serve a dual purpose — contributing to the car's roadholding/handling and braking for good active safety and driving pleasure, and keeping vehicle occupants...

 calibration. The GT2 is significantly lighter than the Turbo due to its use of rear-wheel drive instead of all-wheel drive, and the lightening or removal of interior components.

993 generation

The 993
Porsche 993
The Porsche 993 is the company's internal name for the version of the Porsche 911 model manufactured and sold between late 1993 and early 1998, replacing the 964...

-generation GT2 was initially built in order to meet homologation
Homologation (motorsport)
In motorsports, homologation is the approval process a vehicle, race track or standardised part must go through to race in a given league or series. The regulations and rules that must be met are generally set by the series' sanctioning body...

 requirements for motorsports. The GT2s were developed by Ethan Glassman. Because the cars were built to meet the GT2 class regulations, the road cars were named accordingly. The 993 GT2 featured widened plastic fenders and a larger rear wing with air scoops in the struts. The 993 GT2's original 3.6 liter engine developed 320.8 kW; in 1998 it was upgraded to 335.7 kW. Fifty-seven road cars were built (seven of which were right-hand drive).

Technical specification:
  • Configuration: Air-cooled
    Air-cooled engine
    Air-cooled engines rely on the circulation of air directly over hot parts of the engine to cool them.-Introduction:Most modern internal combustion engines are cooled by a closed circuit carrying liquid coolant through channels in the engine block and cylinder head, where the coolant absorbs heat,...

     twin-turbo
    Twin-turbo
    Twin-turbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. There are two commonly used twin turbo configurations: parallel twin-turbo and sequential twin-turbo...

    charged H6
  • Displacement: 3600 cc; 2 valves per cylinder
  • Bore × stroke: 99.1 mm (3.9 in) × 76.2 mm (3 in)

  • Maximum power: 335.7 kW @ 6000 rpm
  • Specific power: 93.25 kW/liter (2.05 hp/cu in)

  • Maximum torque: 585.7 newton metre @ 3500 rpm
  • Specific torque: 162.7 N·m/liter (1.96 lb·ft/cu in)

  • Transmission: 6-speed manual
    Manual transmission
    A manual transmission, also known as a manual gearbox or standard transmission is a type of transmission used in motor vehicle applications...


  • Length: 4245 mm (167.1 in)
  • Width: 1855 mm (73 in)
  • Height: 1270 mm (50 in)
  • Wheelbase: 2272 mm (89.4 in)
  • Front track: 1475 mm (58.1 in)
  • Rear track: 1550 mm (61 in)
  • Curb weight: 1295 kg (2,855 lb)

  • Power-to-weight ratio: 259.2 W/kg (6.34 lb/hp)

  • Top Speed: 301 km/h (187 mph)
  • 0-60 mph: 3.9 s
  • 0-100 mph: 8.7 s
  • 1/4 mile: 12.1 s @ 117 mph (188 km/h)


996 generation

In 1999, the 993-generation 911 was replaced with the new 996
Porsche 996
The Porsche 996 is the internal designation for the Porsche 911 model manufactured and sold between 1998 and 2005. It has since been replaced by the Type 997...

 model. It would be two years before a new GT2 model would arrive; during that time, Porsche decided to abandon the GT2 for motorsports use, instead concentrating on the new naturally aspirated 911 GT3
Porsche 911 GT3
The Porsche 911 GT3 is a higher performance version of the Porsche 911 sports car. It is the latest in a line of high performance models, beginning with the 1973 911 RS...

.

Developed primarily as a road car in contrast to its predecessor, the new GT2 featured a twin-turbocharged version of the GT3's 3.6 liter H6
Flat-6
A flat-6 or horizontally opposed-6 is a flat engine with six cylinders arranged horizontally in two banks of three cylinders on each side of a central crankcase...

 engine. It featured an output of 344.7 kW, which was later increased to 360.3 kW. Like the 993 GT2, its body differed significantly from those of other 996 variants; major differences included wider fenders, a more aggressively shaped nose, and a large rear wing.

According to road testing performed by Car and Driver
Car and Driver
Car and Driver is an American automotive enthusiast magazine. Its total circulation is 1.31 million. It is owned by Hearst Magazines, who purchased prior owner Hachette Filipacchi Media U.S. in 2011...

 magazine, the GT2 suffers from hardly any turbo lag. Despite a 10-millimeter reduction in ride height from the 911 Turbo, the drag coefficient is slightly higher — 0.34 Cd vs. the Turbo's 0.33 — due to the fixed rear wing.

Technical specification:
  • Configuration: Water-cooled twin-turbo
    Twin-turbo
    Twin-turbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. There are two commonly used twin turbo configurations: parallel twin-turbo and sequential twin-turbo...

    charged H6
  • Displacement: 3600 cc; 4 valves per cylinder
  • Bore × stroke: 100 mm (3.9 in) × 76.4 mm (3 in)
  • Compression ratio: 9.40:1

  • Maximum power: 353.9 kW @ 5700 rpm
  • Specific power: 98.31 kW/liter (2.16 hp/cu in)

  • Maximum torque: 640 newton metre @ 3500 rpm
  • Specific torque: 177.78 N·m/liter (2.14 lb·ft/cu in)

  • Transmission: 6-speed manual
    Manual transmission
    A manual transmission, also known as a manual gearbox or standard transmission is a type of transmission used in motor vehicle applications...


  • Length: 4450 mm (175.2 in)
  • Width: 1830 mm (72 in)
  • Height: 1275 mm (50.2 in)
  • Wheelbase: 2355 mm (92.7 in)
  • Front track: 1485 mm (58.5 in)
  • Rear track: 1520 mm (59.8 in)
  • Curb weight: 1430 kg (3,153 lb)

  • Fuel capacity: 89 l (24 US gal)
  • Power-to-weight ratio: 248.3 W/kg (6.63 lb/hp)

  • Top speed: 319 kilometre per hour
  • 0-60 mph: 3.7 s
  • 0-100 mph: 8.3 s
  • 1/4 mile: 11.9s @ 193.2 km/h (120 mph)


997 generation

The Porsche 996
Porsche 996
The Porsche 996 is the internal designation for the Porsche 911 model manufactured and sold between 1998 and 2005. It has since been replaced by the Type 997...

 GT2 was superseded by the 997
Porsche 997
The Porsche Type 997 , also simply called the 997 is the current version of the 911 family sports car built by German manufacturer Porsche in Stuttgart-Zuffenhausen...

 GT2 in 2007 after a brief hiatus, with cars arriving at dealerships in November after an official launch at the 62nd Frankfurt Motor Show
Internationale Automobil-Ausstellung
The Internationale Automobil-Ausstellung , also known as the Frankfurt Motor Show or Frankfurt Auto Show, is one of the world's largest motor shows. It is held biennially in Frankfurt, Germany. The show occupies 12 buildings.The IAA is organized by the Association of the German Automotive Industry...

.

The new 997 GT2 engine is based on the existing 3.6 liter flat-6 engine, but now features twin variable geometry turbocharger
Variable geometry turbocharger
Variable-geometry turbochargers are a family of turbochargers, usually designed to allow the effective aspect ratio of the turbo to be altered as conditions change. This is done because optimum aspect ratio at low engine speeds is very different from that at high engine speeds...

s, which generate 530 PS at 6500 rpm and 680 newton metre at 2200 rpm. The GT2 accelerates from 0 to 100 km/h (0-62 mph) in 3.6 seconds and on to 200 km/h (124 mph) in 10.6 seconds, and has a maximum top speed of 331 kilometre per hour. This makes it the first Porsche 911 to exceed the 322 km/h (200 mph) barrier, with the exception of the 1998 Porsche 911 GT1
Porsche 911 GT1
The Porsche 911 GT1 was a car designed for competition in the GT1 class of sportscar racing, which also required a street legal version for homologation purposes...

, a homologated race car based largely on the 962
Porsche 962
The Porsche 962 was a sports-prototype racing car built by Porsche as a replacement for the 956 and designed mainly to comply with IMSA's GTP regulations, although it would later compete in the European Group C formula as the 956 had...

 and sharing only front chassis components and doors with the true 911.
The American auto magazine Motor Trend
Motor Trend
Motor Trend is an American automobile magazine. It first appeared in September 1949, issued by Petersen Publishing Company in Los Angeles, and bearing the tag line "The Magazine for a Motoring World". Petersen Publishing was sold to British publisher EMAP in 1998, who sold the former Petersen...

 tested a 2008 Porsche 911 GT2, achieving a 0-60 mph time of 3.3 seconds, and a quarter mile of 11.3 seconds at 129.1 mi/h. The GT2 also recorded a braking distance from 60 to 0 mph of 98 feet (29.9 m), and 1.10g of lateral grip.

The appearance of the 997 GT2 once again differs from its sister car, the 997 Turbo. It has a revised front lip, newly designed rear wing with two small air inlets on either side, and a revised rear bumper featuring titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....

 exhaust pipes and shark fin outlets.

German Porsche test driver Walter Röhrl
Walter Röhrl
Walter Röhrl is a German rally and auto racing driver, with victories for Fiat, Opel, Lancia and Audi as well as Porsche, Ford and BMW.-Career:...

 recently lapped the Nürburgring Nordschleife on a public day in 7 minutes, 32 seconds in the new 997 GT2.

GT2 RS

On May 4, 2010, an RS variant was announced to German dealers in Leipzig. The GT2 RS develops 620 PS and 700 newton metre of torque and weighs 70 kg (154.3 lb) less than the standard GT2, allowing for a top speed of 330 kilometre per hour and 0–100 km/h (0-62 mph) acceleration of 3.4 seconds. The GT2 RS clocked a record-breaking time of 7 minutes and 18 seconds around the Nürburgring-Nordschleife track (claimed by Porsche), one of the fastest times in modern production car history. However, this was performed on the shorter Nurburgring course, which is 232 meters shorter and Porsche is unwilling to show video proof. Given an average speed of 100MPH (160 km/h), this yields an addition 5.7 seconds, with a more typical allowance of 7 seconds. This would result in a range of 7:23-7:25, which is comparable to the 7:24 turned in by Horst von Saurma.

According to Porsche Motorsports manager Andreas Preuninger, the RS was conceived around 2007 as a skunk-works effort. The 727 code number selected for the project corresponds to one of the Nissan GT-R
Nissan GT-R
The Nissan GT-R is a sports car produced by Nissan released in Japan on December 6, 2007, the United States on July 4, 2008, and the rest of the world in March 2009.-History:...

's lap times around the Nurburgring's Nordschleife. When the dust settled, Porsche claimed that test driver Timo Kluck had supposedly eclipsed that target by an impressive nine seconds.

Technical specifications

Technical specifications of the standard 997 GT2:

  • Configuration: Water-cooled twin-turbo
    Twin-turbo
    Twin-turbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. There are two commonly used twin turbo configurations: parallel twin-turbo and sequential twin-turbo...

    charged H6
  • Displacement: 3600 cc; 4 valves per cylinder
  • Bore × stroke: 100 mm (3.94 in) × 76.4 mm (3.01 in)
  • Compression ratio: 9.4:1

  • Maximum power: 530 PS @ 6500 rpm
  • Specific power: 109.8 kW/liter (2.41 hp/cu in)

  • Maximum torque: 685 newton metre @ 2200 rpm (continuing to 4500 rpm due to VTG effects)
  • Specific torque: 190.3 N·m/liter (2.29 lb·ft/cu in)

  • Transmission: 6-speed manual
    Manual transmission
    A manual transmission, also known as a manual gearbox or standard transmission is a type of transmission used in motor vehicle applications...


  • Front brakes: Ventilated carbon ceramic discs
    Disc brake
    The disc brake or disk brake is a device for slowing or stopping the rotation of a wheel while it is in motion.A brake disc is usually made of cast iron, but may in some cases be made of composites such as reinforced carbon–carbon or ceramic matrix composites. This is connected to the wheel and/or...

     with 6-piston monobloc aluminum fixed calipers & ABS
    Anti-lock braking system
    An anti-lock braking system is a safety system that allows the wheels on a motor vehicle to continue interacting tractively with the road surface as directed by driver steering inputs while braking, preventing the wheels from locking up and therefore avoiding skidding.An ABS generally offers...

  • Rear brakes: Ventilated carbon ceramic discs with 4-piston monobloc aluminum fixed calipers & ABS

  • Length: 4469 mm (175.9 in)
  • Width: 1852 mm (72.9 in)
  • Height: 1285 mm (50.6 in)
  • Wheelbase: 2350 mm (92.5 in)
  • Curb Weight: 1438 kg (3,170 lb)
  • Drag coefficient: 0.32

  • Fuel tank capacity: 67 l (18 US gal)
  • Luggage Area Volume: 0.1 m³ (3.5 cu ft)
  • Power-to-weight ratio: 275.0 W/kg (5.98 lb/hp)

  • Top Speed: 328 kilometre per hour
  • 0–100 km/h: 3.4 s
  • 0–200 km/h: 10.6 s
  • 0-30 mph: 1.2 s
  • 0-60 mph: 3.3 s
  • 0-100 mph: 7.4 s
  • 0-150 mph: 15.9 s
  • 0-186 mph: 34.0 s
  • 1/4 mile: 11.3 s @209.46 kilometre per hour


Motorsports

The Porsche GT2 comes from a long line of 911 Porsche Turbo racing cars in international motorsports. Starting with the 1974 911 Carrera turbo for Group5 racing, followed by the 934 (a racing version of the 930) for Group4 racing, then the famous Porsche 935 which dominated Group5 and IMSA racing through 1984. in 1986 a Porsche 961 (racing version of the 959) would be created with little racing success but a leap forward in technology and development such as AWD, 4 valves per cylinder and water-cooled heads (which first appeared in the 1978 Porsche 935 Moby-Dick, used in the Porsche 956/962 GroupC prototypes and then in the 959/961)
In 1993, Porsche had experimented with the extensively modified turbo 964
Porsche 964
The Porsche 964 is the company's internal name for the version of the Porsche 911 model manufactured and sold between 1989 and 1994. It featured significant styling revisions over previous versions of the 911, most prominently the more integrated bumpers , although it was still obviously a 911...

, named the Turbo S LM-GT. Seeing the car's potential to be fast and reliable, as well as customer demand for a car to replace the 964 Carrera RSRs, Porsche chose to develop the turbocharged 993 for customer use.

The 993 GT2 race car featured a stripped interior, integrated rollcage for safety, minor adjustments to the bodywork and wings in order to decrease weight as well as increase downforce, and wider fenders to handle racing slicks. The suspension was modified to improve racing performance, while the engine was slightly tweaked for endurance. Twin KKK turbochargers, fitted with required air restrictors, allowed for 335.7 kW.

At the same time, Porsche also developed a GT2 Evo, able to race in the GT1 category. The Evo saw an increase in power to 447.6 kW through the use of larger turbochargers. Other modifications included a new, higher-mounted rear wing, larger fenders to house the wider tires allowed in the GT1 class, and a decrease in weight to 1100 kg (2,425 lb). The GT2 Evo was short-lived, however, as Porsche decided to replace it with the purpose-built 911 GT1
Porsche 911 GT1
The Porsche 911 GT1 was a car designed for competition in the GT1 class of sportscar racing, which also required a street legal version for homologation purposes...

 in 1996.

The GT2 and GT2 Evos were initially campaigned in the BPR Global GT Series
BPR Global GT Series
The BPR Global GT Series was a grand tourer-based sports car racing series which ran from 1994 to 1996 before becoming the FIA GT Championship in 1997...

 as well as several other smaller national series, and earned seven wins in their class out of eleven rounds during their first full BPR season in 1996
1996 BPR Global GT Series season
The 1996 BPR Global GT Series season was the third season of BPR Global GT Series. It is a series for Grand Touring style cars broken into two classes based on power and manufacturer involvement, called GT1 and GT2. It began on March 3, 1996 and ended November 3, 1996 after 11 races...

, as well as a class victory in the 1996
1996 24 Hours of Le Mans
The 1996 24 Hours of Le Mans was the 64th Grand Prix of Endurance, and took place on June 15 and 16 1996.-Race:The 1996 race was won by a car that was considered by Porsche to not be a factory-backed entry, instead run by Joest Racing...

 and 1997 24 Hours of Le Mans
1997 24 Hours of Le Mans
The 1997 24 Hours of Le Mans was the 65th Grand Prix of Endurance, and took place on June 14 and 15 1997.-Pre-race:The Dunlop chicane was modified slightly in order to slow speeds again but also accommodate larger gravel traps as runoff area for the protection of motorcycle riders using the Bugatti...

. In the new FIA GT Championship
FIA GT Championship
The FIA GT Championship was a sports car racing series organized by the Stéphane Ratel Organisation at the behest of the Fédération Internationale de l'Automobile . The championship was mostly concentrated in Europe, but throughout the years has visited other continents including Asia and South...

 that year, although Porsche faced factory-backed competition from Chrysler
Chrysler
Chrysler Group LLC is a multinational automaker headquartered in Auburn Hills, Michigan, USA. Chrysler was first organized as the Chrysler Corporation in 1925....

, the 911 GT2s managed to win three races. By 1998, however, the capabilities of the GT2 were unable to combat the increased number of Chrysler Viper GTS-R
Chrysler Viper GTS-R
The Chrysler Viper GTS-R was a successful racing variant of the Dodge Viper developed in conjunction with Chrysler of North America, Oreca of France, and Reynard Motorsport of the United Kingdom. Officially unveiled at the 1995 Pebble Beach Concours, it has won numerous championships and famous...

s in the series, earning only a single victory.

By 1999, the GT2s had been largely overpowered by the Vipers, as well as newcomers Lister. Despite this, a GT2 prepared by Roock Racing managed to win the GT2 class at the 24 Hours of Daytona
24 Hours of Daytona
The 24 Hours of Daytona, currently known as the Rolex 24 Daytona for sponsorship reasons, is a 24-hour sports car endurance race held annually at Daytona International Speedway in Daytona Beach, Florida. It is run on a combined road course, utilizing portions of the NASCAR tri-oval and an infield...

. An increase in engine displacement to 3.8 liters in 2000 was unable to help Porsche, and support for the project ended. Porsche chose instead to concentrate on the new N-GT category with the GT3-R
Porsche 911 GT3
The Porsche 911 GT3 is a higher performance version of the Porsche 911 sports car. It is the latest in a line of high performance models, beginning with the 1973 911 RS...

 that same year. GT2s continued to be used by private teams until 2004.

With the launch of the 996 generation GT2, several privateers attempted to continue on the motorsports history by building their own racing versions. Belgian PSI Motorsports' 911 Bi-Turbo and German A-Level Engineering's 911 GT2-R were used with mixed success in national series such as Belcar
Belcar
The Belcar Endurance Championship is the national sports car racing championship of Belgium. The series is sanctioned by the Royal Automobile Club of Belgium and run by the Stéphane Ratel Organisation . The series' title sponsor is Mediagroep Van Dyck.Since the 2007 season, the series has run...

, but were not competitive in international series.

External links

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