2013 Porsche 911 (991) RSR is ready for the Le Mans 24 Hours

Article by Christian Andrei, on April 3, 2013

Porsche presented in full livery its new GT race car that will participate at the World Endurance Championship (WEC) and the Le Mans 24 Hours. The company also gave us a peek of its Le Mans Prototype entry in 2014 with the introduction of its "Mission 2014" web site. The new 911 RSR race car, which will come out in 2013, will be entered in the WEC LM-GTE class.

It features remarkable lightweight design and advanced aerodynamics. The outstanding vehicle styling pays homage to the 50 years of existence of the Porsche 911. The numbers 50 and 911 can be seen from a bird’s eye view.

Two Porsche 911 RSR race cars will be entered by the Porsche AG Team Manthey works team in the World Endurance Championship's 2013 season such as the 24 Hours of Le Mans. This car is not expected to join a North America series this year. The new 911 RSR is actually based on the seventh generation of the legendary 911 sports car.

It comes after the 911 GT3 RSR (type 997), its highly popular predecessor. Just like its production vehicle, the wheelbase has increased by around 10 cms. or four inches. Instead of McPherson struts, the vehicle has a new wishbone front suspension. Porsche Motorsport will also feature the incredibly lightweight racing gearbox.

The six gears are chosen with the use of paddles on the steering wheel. It is equipped with the 460 hp, 4.0-litre six-cylinder boxer engine, which is carried over from the predecessor but has been optimized. Porsche has designed the new 911 RSR to be more evenly balanced in terms of weight.

Its center of gravity is also much lower than its predecessor. Its new design uses carbon fiber in a vital way. Its front and rear mudguards, front and rear lids, doors, underbody, wheel arches, rear wing, dashboard and center console are built using very light and sturdy material. In addition, all of its windows are made from very thin and light polycarbonate.

Making it even lighter is the use of the lithium-ion battery that’s used by the 911 GT3 road going models. The new 911 RSR’s look is focused on the flared mudguards and the deep cooling air intakes at the front. The radiator has new air ducting and is now positioned in the center and in the front and has become even more effective than in the former model.

The cockpit air conditioning has also become more efficient. The automaker has adjusted the quick-change concept of the body parts for endurance racing, leading to easier maintenance and faster repair times. There are quick release systems on the front end, front lid and rear panel so it only takes seconds to replace.

Press Release

Porsche 911 RSR

In its first appearance in the 24 Hours of Le Mans, the Porsche 911 RSR shone 2013 with magnificent first and second place finishes (GT-Class). The GT racer from Weissach, which is distinguished by its systematic lightweight design and refined aerodynamics, has been further improved in many aspects for 2014. And with success: it started the 2014 season impressively as class victor at the 24-hour race at Daytona.

The 911 RSR, which is used in the 24 Hours of Le Mans and the new United Sports Car Championship in the USA and Canada as part of the WEC World Sportscar Championship series, made its appearance in 2013 as a successor to the successful 911 GT3 RSR. It is based on the seventh generation of the 911 sports car icon. As in its production car counterpart, its wheelbase was lengthened by a full ten centimetres. A new wishbone front suspension replaces the previously used MacPherson sprint strut suspension. The lightweight racing gearbox is also a special new development by Porsche Motorsport. Its six gears are shifted by shift paddles on the steering wheel. The 470 hp four-litre flat six engine was taken from the previous model and optimised in its details.

One of the central focuses in developing the 911 RSR was to attain a balanced weight distribution. The vehicle's centre of gravity is also significantly lower than in the previous model. Carbon fibre material assumes a special significance here. The front and rear wings, front and rear lids, the doors, underbody, wheel arch panels, rear wing, dashboard and centre console are made of this exceptionally lightweight and strong material. In addition, all windows are made of very thin and lightweight polycarbonate. The familiar lightweight lithium-ion battery of the GT street models also makes a contribution towards weight savings.

More service-friendly for shorter pit stops

The look of the new 911 RSR is marked by broad flared wings and a deep cooling air channel at the front end. The new air flow system enables a centrally located radiator at the front end, which operates even more efficiently than in the previous model. Climate control of the interior was also made more efficient. For enhanced service friendliness and shorter repair times, a quick-change concept for body parts was tuned for long-distance racing. The nose, front lid and rear apron are attached with quick-action clamps and can be replaced within just a few seconds.

The static cornering lights that are positioned very low in the front end improve the driver's view in bends. This improves night-time driving safety. The reflective labels on cockpit controls, combined with anti-glare interior lighting, provide for optimal legibility in darkness. The layout of switches on the new steering wheel was developed together with the Porsche factory drivers. From the outset, they contributed their wealth of experience in GT motorsport to the design of the 911 RSR.

Numerous improvements

The 911 RSR was systematically further improved for the 2014 season. The redesigned front end, for example, and the new rear wing provide for optimal aerodynamic balance and therefore for greater stability in fast driving through bends. Even more precise steering response, which leads to better vehicle handling in bends at slow and moderate speeds, was attained by optimising front suspension kinematics. Further improvements to the car's structural rigidity result in more precise steering response. Also new is the engine air induction system, which was optimised in its details, such as in its air filter geometry, which contributes towards reducing the effects of contamination on power output. The new FT3 safety fuel tank with a lowered centre of gravity enables improved filling under race conditions.

Live telemetry that is permanently transmitted to the command station via the car's roof antenna ensures that engineers are always well informed of all relevant vehicle data with over 200 measurement values. In addition, all data is stored on a memory card in the vehicle.

"The most spectacular 911 ever"

"The 911 RSR was further optimised in many aspects. The wide rear wheel rims and refined aerodynamics have improved consistency over a sprint," says Porsche factory driver Jörg Bergmeister. "This is undoubtedly the best 911 that I have ever driven. It still always feels like a 911, but it can do practically everything better than the previous model. And on top of that, it is also in my eyes the most beautiful and most spectacular 911 ever." His team-mate Patrick Pilet adds this: "Last season, we strove constantly to develop the car further. The better weight distribution, in particular, has had a positive effect on performance. The 911 RSR is now more stable over the rear axle and gives the driver a greater sense of trust. This allows the driver to probe performance limits faster."

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