A 7-speed power demonstration: PDK, trimmed for maximum performance for the new 911 GT2 RS. With purposely short ratios and short, succinct gearshifts via the shift paddles. Seventh gear is also ratioed for sport and designed for maximum speed. The manual mode on the gear selector works as it does in our race cars: backwards to shift up, forwards to shift down.
As regards the PDK technology: it consists of two half gearboxes mounted in a common housing. Two half gearboxes require two clutches. This double-clutch arrangement alternately connects these two half gearboxes to the engine via two separate drive shafts, depending on the current gear. When changing gear, one clutch engages and the other simultaneously disengages, allowing gear changes to take place in milliseconds, with no interruption in the flow of power.
Which has positive consequences – of course: for acceleration, overall performance and fuel consumption. The driving feel is more dynamic, the agility improved.
And the gear change itself? You can both hear and feel it. The electronic, GT-specific transmission control ensures faster, more spontaneous traction upshifts – and extremely dynamic downshift thrusts in combination with sporty, interim applications of the throttle. In PDK SPORT mode, downshifts are more aggressive when braking; when accelerating, the switching points relocate at higher revs. So you can really feel the upshifts – both physically and emotionally, of course.