The PDK dual-clutch gearbox: speed and sensations!
The 7-speed robotic automatic transmission found in today's Porsche models is the result of many years of development by Porsche Motorsport in the racing world. It made its emergence in the 80s during the 24 hours of Le Mans on the Porsche 956. This automatic double-clutch transmission called PDK (for Porsche DoppelKuplungsgetriebe) offers many advantages.
What is the main advantage of PDK transmission?
The answer is particularly simple: SPEED. Indeed, the double clutch allows almost imperceptible gear changes with very little or no loss of power. This translates into faster acceleration, more efficient pick-up and better use of engine power. In addition, this technology allows a reduction in fuel consumption of about 14% compared to a manual transmission thanks to its 7th (and now 8th) gear.
How does the PDK gearbox work?
In a traditional gearbox, the clutch is used to engage the next gear. When changing gear, there is a loss of power which can cause a jerk during re-acceleration. For the PDK box, it is quite different. The double clutch eliminates dead times because there is a disc for even gears and another for odd gears. When a gear is engaged, the 2nd disc pre-engages the next gear, which allows ultra-fast shifting. Three operating modes for more fun! The PDK automatic transmission has 3 operating modes: "Normal", "Sport" and "Sport Plus". Normal mode is recommended for city driving since the gears are shifted to lower revs to maximize fuel economy. When you go into Sport mode, the gears will shift quickly to give more revving. The much radical Sport Plus mode is suitable for circuit driving since gears change almost instantly when engine revs close to the red zone. This mode can be combined with the Launch Control function for lightning-fast starts. This transmission is now fitted as standard on the Porsches 911 Turbo, 911 GT3 RS, 918 Spyder, Panamera and Macan. It is available as an option on the Porsches Boxter and Cayman.
If you would like to know more about the models of Porsche for sale in Laval and Montreal, do not hesitate to contact our specialists at Porsche Lauzon. They will be happy to assist you with the purchase of your next vehicle or with the maintenance of your Porsche.
Originally Posted: March 24, 2015
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