2011 Porsche 911 GT3 R Hybrid Version 2.0: photos, details and specs

Article by Christian Andrei, on March 18, 2011

A further developed version of the Porsche 911 GT3 R Hybrid will take on the Nürburgring 24 hour race on June 25. During development, Porsche prioritized efficiency via the targeted optimization of hybrid components, which also led to a 20% weight reduction. It’s expected that version 2.0 of the 911 GT3 R Hybrid will be able to achieve the same lap times as its predecessor but with less fuel consumption.

The hybrid’s general layout was taken from the 2010 model. The front wheels are driven by a portal axle with two electric motors and supplements the four-liter. Its six-cylinder boxer engine at the rear delivers around 470hp, depending on the performance details. Both electric motors can now deliver 75 kilowatts each, from 60 kilowatts previously.

With the 911 GT3 R Hybrid 2.0, pilots can have additional power of nearly 200hp that they can use for seconds at a time. Depending on the programming, this power can be automatically activated with the use of the throttle pedal. In addition, pilots can manually engage this extra power, when overtaking for example.

At a carbon fiber safety cell on the passenger's side is where the electric flywheel accumulator, with its rotor spinning up to 40,000 rpm and storing energy mechanically as rotational energy, is located.

The accumulator is place there along with the other hybrid components. At a glance, the new GT3 R Hybrid can be clearly differentiated from the 2010 model. The large louvres in front of the rear fenders were no longer needed due to the optimization of the hybrid system's high voltage components. This lessens the drag and fuel consumption. The vehicle also weighs less, from 1,350 to 1,300 kilograms.

Press Release

Porsche 911 GT3 R Hybrid 2.0

Porsche AG will enter the Nürburgring 24 hour race on June 25, 2011, with a more advanced version of the Porsche 911 GT3 R Hybrid. The priority for this latest edition was improvement of efficiency through the targeted optimization of hybrid components, which also resulted in a 20 percent weight reduction. Version 2.0 of the 911 GT3 R Hybrid is intended to achieve the same lap times as its predecessor but with less fuel consumption.

The general layout of the hybrid was adopted from the previous model. A portal axle with two electric motors drives the front wheels and supplements the four-liter - depending on the balance of performance classification - approximately 470 hp, six-cylinder boxer engine at the rear. The output of both electric motors has increased from 60 to 75 kilowatts each. For bursts of multiple seconds at a time, drivers now have almost an additional 200 hp at their disposal with the Porsche 911 GT3 R Hybrid 2.0. Depending on the programming, this power is automatically activated through use of the throttle pedal. Moreover, pilots can manually call up this extra power, for instance when overtaking.

The electric flywheel accumulator, with its rotor spinning up to 40,000 rpm and storing energy mechanically as rotational energy, is now housed with the other hybrid components in a carbon fiber safety cell on the passenger's side.

At first glance, the new GT3 R Hybrid is clearly distinguishable from the previous model. Thanks to the optimization of the hybrid system's high voltage components, the large louvers in front of the rear fenders were no longer necessary. This reduces drag and also lowers fuel consumption. All in all, the weight of the vehicle decreased from 1,350 to 1,300 kilograms.

"We've collected a great deal of information from our races on the Nürburgring, at the ALMS race at Road Atlanta, as well as from the ILMC race on China's Zhuhai circuit. The data was invaluable for the further development of our racing laboratory," says Hartmut Kristen, head of Porsche motorsport. "The emphasis of our work was on improving efficiency. That means we want to keep the lap times consistent with 2010 but use less energy, hence less fuel. In this way, we support future developments of road-going, sporting hybrid vehicles."

The cockpit of the Porsche 911 GT3 R Hybrid has also been completely revised. Most of the displays and controls have moved to the steering wheel. Drivers can operate the rest of the functions via backlit buttons now situated on the centre console. Priority was placed on the ergonomics and the clear layout for pilots - particularly in darkness.

The new Porsche 911 GT3 R Hybrid is a perfect example of the 'Porsche Intelligent Performance' philosophy, a principle found in every Porsche - more power on less fuel, more efficiency and lower CO2 emissions - on the race track and on the road.

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