Ruf Rt 12

The Ruf Rt 12 is a sports car built by Ruf Automobile of Germany and based on the 997-generation Porsche 911.

Ruf Rt 12
Overview
ManufacturerRuf
Production2004–2012
Body and chassis
ClassSports car (S)
Body style2-door coupé
LayoutRear-engine, rear-wheel-drive / four wheel drive
PlatformPorsche 911 (997)
Related
Powertrain
Engine3.8 L twin-turbocharged Ruf RTurbo 590 Flat-6[1]
Transmission6-speed manual
Dimensions
Length4,495 mm (177.0 in)
Width1,882 mm (74.1 in)
Height1,270 mm (50.0 in)
Curb weight1,500 kg (3,307 lb)
Chronology
SuccessorRuf RTR

Model information
Ruf Rt 12 S (the car retains the standard cooling ducts found on the 911 Turbo)
Interior

Ruf introduced the model in Autumn 2004 at the Essen Motor Show as the first of their offerings built on Porsche's then new 997 platform. A twin-turbocharged 3.6-litre flat-six engine based on the previous 996 Turbo's engine is rated between 530 and 560 PS (523 and 552 hp; 390 and 412 kW) options while the bored-out to 102 mm (4.02 in) and destroked to 76.4 mm (3.01 in) for a total displacement of 3.7 L; 228.6 cu in (3,746 cc). The engine is rated at 685 PS (676 hp; 504 kW) at 7,000 rpm and 880 N⋅m (649 lbf⋅ft) at 4,000 rpm on "S" trim; or 730 PS (720 hp; 537 kW) at 7,000 rpm and 940 N⋅m (693 lbf⋅ft) at 3,500 rpm on "R" trim. Modifications include replacement of the VTG turbochargers in favour of KKK units a cast alloy intake manifold, gas-flowed cylinder heads, larger throttle bodies and 102 mm Mahle pistons with custom built camshafts. The turbochargers have a boost of 1.3 bar (18.9 psi).[2][3] The engine has a redline of 7,500 rpm.

The Rt 12 features specially developed Ruf bodywork, giving the vehicle a unique appearance while functioning to increase downforce, improving high speed stability. Large cross-drilled brakes are included, although some debate has arisen as to how much of an upgrade the system provides over the factory-optional ceramic brakes (PCCB) that Porsche offers on "S" model 997s. Due to doubts over the PCCB system, Ruf chose not to opt them for the Rt12.[4] In addition, Ruf replaced the factory "active" suspension system with a static system of their own design. A system with hydraulic control, developed together with Öhlins, which can raise ride-height in situations such as driveway entries is available as an option. Exteriorwise, the Rt12 can be best distinguished from the standard Porsche 997 Turbo by the air tunnels on the rear haunches supplying allegedly cooler air for the twin turbochargers than the lower tunnels in the Porsche.

In total, 13 cars were made. Rear-wheel-drive was available as an option. All but two customers have ordered their Ruf Rt 12 with AWD.

Performance
Engine

The Rt 12 has a 0-97 km/h (60 mph) time of 2.8 seconds and a top speed of 352 km/h (219 mph) with standard gearing,[5] very similar to the RUF CTR2's 217 mph record from 1996. This gave it superior straight-line performance when compared to similar sports cars such as the Ferrari Enzo, Porsche Carrera GT, and Mercedes-Benz SLR McLaren. Comparable sports cars include the McLaren MP4-12C (which is faster off the line but has a slightly lower top speed.)[6]

Although the top speed is officially reported as 352 km/h (219 mph), there is a taller gearing option which is reported to boost the car's power output figured to in 685 PS (676 hp; 504 kW) and 880 N⋅m (649 lb⋅ft) of torque form to a speed in excess of 360 km/h (224 mph).[7]

References
  1. Zuchowski, Matt (10 May 2016). "2011 Ruf Rt 12 R vs 2015 Ruf RtR - Ruf's Finest 911s". Super Street Online. Retrieved 13 July 2020.
  2. Hall, Nick (24 June 2011). "First Drive: Ruf RT12 R". Motor Trend. Retrieved 12 July 2020.
  3. "RUF RT-12 R". ultimatecarpage.com. March 7, 2011. Retrieved July 30, 2018.
  4. Hide Comments (2002-02-01). "Road Tests - Ruf RTurbo (2/2002)". ROADandTRACK.com. Archived from the original on 2009-06-09. Retrieved 2010-11-13.
  5. "Ruf AutomobileRuf Automobile GmbH - Manufaktur für Hochleistungs-Fahrzeuge - Automobile". Ruf-automobile.de. Archived from the original on 2009-12-17. Retrieved 2010-11-13.
  6. Road & Track: 2012 McLaren MP4-12C: A road and track drive of the 592-bhp twin-turbo V-8 successor to the McLaren F1 - http://www.roadandtrack.com/car-reviews/road-tests/2012-mclaren-mp4-12c-1
  7. "History". ruf-automobile.de. Retrieved June 28, 2018.
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