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nopassn
04-21-2004, 06:35 PM
In 1992, Porsche produced a super-lightweight, rear-wheel-drive only version of the 964 dubbed Carrera RS for the European market. It was based on Porsche's 911 "Carrera Cup" race car and harked back to the 2.7 and 3.0 RS and RSR models. It featured a revised version of the standard engine, titled M64/03 internally, with an increased power output of 260 bhp (194 kW; 264 PS) and lightweight flywheel coupled to the G50/10 transmission with closer ratios, asymmetrical Limited Slip Differential and steel syncromesh. A track-oriented suspension system with 40 mm (1.6 in) lower ride height, stiffer springs, shocks and adjustable stabilizer bars without power steering (RHD UK cars did have power steering).

A stripped-out interior devoid of power windows or seats, rear seats, air conditioning, cruise control, sound deadening or a stereo system (optionally fitted) and new racing-bucket front seats were part of the package. The trunk hood was made of aluminum, the chassis was seam welded and sound deadening was deleted. Wheels were made of magnesium and the glass was thinner in the doors and rear window. The Carrera RS is approximately 345 pounds (155 kg) lighter than the US version Carrera 2 model. Also available were a heavier Touring variant (with sound deadening, power seats (optional), undercarriage protection and power windows) and an N/GT racing variant with a stripped, blank metal interior and a roll cage. They also came with optional lights on the visors.

A later ultra-limited production version, the Carrera 3.8 RS featuring the Turbo body and a 300 bhp (224 kW; 304 PS) 3.8 litre version of the M64 motor was sold briefly in Europe.
This engine was bored out by 2 mm for a total of 3,746 cc, and was also available in a more powerful competition version called the 3.8 RSR.

The Carrera RS was not sold in the United States because Porsche Cars North America felt the car's aggressive tuning was not suited to the American market. In 1992, 45 USA-legal cars that were very similar to the Carrera RS were imported to the USA for a proposed "Porsche Carrera Cup" racing series. This Carrera Cup series was to function as a support race for the American CART racing series just as European Carrera Cup has supported Formula One.

These 45 cars were identical to a Carrera RS other than having airbags (with required electric windows), alarm system, American lighting, American bumpers, aluminum wheels, and standard seats. The cars otherwise had the lightweight seam welded chassis, lightweight interior trim, aluminum hood, lightweight door glass, suspension, brakes, G50/10 transmission and M64/03 engine etc. of the Carrera RS. These cars were approximately 200 pounds (90 kg) lighter than a normal USA Carrera 2 model.

The plan was for Andial, the then equivalent of what is now Porsche Motorsport USA, to convert these cars to full racing specification, however, due to lack of sponsor support for the Carrera Cup series, it was cancelled before it began. The 45 cars imported to the USA for this series were then sold, quietly without any advertising so as not to compete with the new RS America, through normal dealer channels. These cars were supplied with a dash plaque which indicated that they were the "Carrera Cup USA Edition".

In order to please devoted American 911 enthusiasts who wanted an RS model, Porsche produced the RS America. The RS America was produced as a model year 1993 and 1994 car based on the USA Carrera 2. The cars were offered in standard colors red, black and white and optional colors midnight blue metallic and polar silver. Several paint to order cars were manufactured in speed yellow. The RS America featured a distinctive "whale tail" spoiler, a partially stripped interior with flat door panels (from the European RS) and carpeting along with a luggage shelf replacing the rear seats. Cloth covered sports seats, 17 inch wheels and M030 Sports Suspension were fitted as standard. The logo "RS America" was written on the deck lid along with an "RS" logo in front of the rear wheels. Deleted to save weight were power steering, cruise control, powered side mirrors, air-conditioning, sunroof and radio, although the air-conditioning, sunroof and radio as well as a limited slip differential could be ordered as options. The RS America was listed by Porsche as weighing 2,954 pounds (1,340 kg), 77 pounds (35 kg) lighter than the weight listed for a stock Carrera 2. The standard USA Carrera 2 brakes, engine and gearbox were used.

Engine
Engine Design: Air-cooled or oil-cooled, horizontally opposed (flat), dry-sump lubrication, rear-mounted engine
Displacement: 3,600 cc (220 cu in)
Cylinders: Six
Bore and Stroke: 3.94 x 3.01 in (100.0 x 76.4 mm)
Compression ratio: 11.3 : 1
Fuel/Ignition: Electronic fuel injection, DME controller, twin-spark with knock regulation
Crankshaft: Forged, 8 main bearings
Block and heads: aluminum alloy
Valve Train: Overhead cam, one per bank, double chain drive
Power: 191 kW/260 hp (SAE net) at 6,100 rpm
Torque: 312 N·m/230 lb·ft at 4,800 rpm

Source : Wikipedia.org

nopassn
04-21-2004, 06:38 PM
The RS America

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