page_title: Porsche 911
section_title: 997 Turbo
hierarchical_section_title: Porsche 911 / Water-cooled engines (1998–present) / 997 (2005–2012) / 997 Turbo
context_page_description: The Porsche 911 is a two-door, 2+2 high performance rear-engined sports car. Introduced in September 1964 by Porsche AG of Stuttgart, Germany. It has a rear-mounted flat-six engine and all round independent suspension. It has undergone continuous development, though the basic concept has remained unchanged. The engines were air-cooled until the introduction of the Type 996 in 1998, with the 993, produced from 1994–1998 model years, being the last of the air-cooled Porsche sports cars.
  The 911 has been modified by private teams and by the factory itself for racing, rallying, and other forms of automotive competition. It is among the most successful competition cars. In the mid-1970s, the naturally aspirated 911 Carrera RSR won major world championship sports car races, such as Targa Florio and 24 Hours of Daytona, even against prototypes. The 911-derived 935 turbo also won the 24 Hours of Le Mans in 1979 and Porsche won World Championship for Makes titles in 1976, 1977, 1978 and 1979 with 911-derived models.
  In the 1999 international poll to determine the Car of the Century, the 911 came fifth.
context_section_description: The Turbocharged version of the 997 series featured the same 3.6 L twin-turbocharged engine as the 996 Turbo, with modifications to have a power output of 480 PS (353 kW; 473 hp) and 620 N⋅m (457 lb⋅ft) of torque. It has VTG (variable turbine geometry), that combines the low-rev boost and quick responses of a small turbocharger with the high-rev power of a larger turbocharger. It also offers higher fuel efficiency compared to the 996 Turbo.
  The 997 Turbo features a new all-wheel-drive system, similar to the one found on the Cayenne. The new PTM (Porsche Traction Management) system incorporates a clutch-based system which varies the amount of torque to the wheels to avoid tire slippage. According to Porsche, redirecting torque to control oversteer or understeer results in neutral handling as well as greatly improved performance in all weather conditions.
  For the face lifted 2010 model year 911 Turbo, known internally as the 997.2 (as opposed to the 997.1 2007-2009 model years), launched in August 2009, the PTM system was tweaked to give a more rearward power bias. The paddle shifters for the PDK double-clutch gearbox debuted on the Turbo. The turbo uses a different engine. The previous water-cooled turbo models (996 and 997) measured 3,600cc. This new engine measures 3,800cc (3.8 litres) and was first developed for the Carrera that was launched in 2008. The variable-vane twin turbochargers have also been reworked to increase responsiveness, and the intercooler and fuel system were uprated. The engine has a power output of  493 PS (363 kW; 486 hp) which is 20 hp more than the outgoing model. The steering wheel also houses a display showing when Sport, Sport Plus and launch control have been selected through the optional Sport Chrono package. Porsche claimed that the new 911 turbo will accelerate from 0 to 100 km/h (0 to 62 mph) in 3.4 seconds, or 0–60 mph in 3.2 seconds and could attain a top-speed of 312 km/h (194 mph).
  As with the 996 Turbo, the car featured distinctive styling cues over the Carrera models including front LED driving/parking/indicator lights mounted on a horizontal bar across the air intakes. The traditional rear wing is a variation of the 996 bi-plane unit.
  A new 911 Turbo S was set for production in 2010. It is a fully optioned Porsche 911 Turbo with a PDK gearbox and sports exhaust as standard. It also comes with re engineered turbo chargers to give an extra 30 horsepower increase to a total of 523 PS (385 kW; 516 hp).
caption: 997 Turbo
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