The main thing to do on the race track: act fast. Of course, the same applies to the transmission. And that’s where Porsche Doppelkupplung (PDK) sets standards. With gear changes that take place in milliseconds and with no interruption in the flow of power – for acceleration figures that would impress any driver. And every opponent.
For the 911 GT3 RS, PDK boasts an even sportier setup. With direct gear ratios and the crisp, short movements of the gearshift paddles. With seven performance-oriented gears, where even seventh gear has a sports ratio and is engineered for maximum speed. Back to shift up, forward to shift down – manual operation of the gear selector is based on the established motorsport principle.
This is how it works. PDK is essentially two gearboxes in one and thus requires two clutches. This double-clutch arrangement provides an alternating, non-positive connection between the two half gearboxes and the engine by means of two separate input shafts. During a gear change, therefore, one clutch simply opens and the other closes at the same time, enabling gear changes to take place within milliseconds. This has consequences: positive ones, of course. Not least for acceleration, overall performance and fuel economy. Driving feels even more dynamic and agility is increased.
What about the gear changes themselves? You’ll feel them and you’ll hear them. The electronic transmission control logic of the Intelligent Shift Program (ISP) offers more immediate and faster traction-induced upshifts and downshifts on overrun. In PDK SPORT mode, downshifts under braking are more aggressive while, under acceleration, the shift points are raised to higher engine speeds. So changing up a gear becomes a physical experience – and an emotive one.