The updated Porsche range will receive the latest transmission - the 7-band dual clutch PDK robotised gearbox.
The PDK is a dual clutch transmission similar to gearboxes used by other manufacturers. Besides being able to shift faster than any human with rev-matching to boot, the PDK offers improved efficiency exceeding that of a manual transmission.
The German company Porsche will offer the long-awaited PDK gearbox for its 718 vehicles of the next model year. As an option, it will be available for the Cayman GT4, 718 Spyder and GTS4.0. The new transmission will be able to shift gears faster than the manual gearbox, regardless of driver skill.
The PDK is a marvel of engineering and is basically two manual gearboxes in one automatically shifting package. The PDK is able to deliver quicker shifts through the gears while simultaneously reducing fuel consumption versus the outgoing model. 0 comments Starting at the bellhousing end (far left), the PDK gearbox uses two concentrically mounted wet clutches connected to two separate input shafts. The 202mm outer clutch is attached to the solid inner shaft, with the 153mm inner clutch. 7DT – longitudinal 2009–??? (two variants of the Porsche PDK dual clutch transmission): The first variant, the 7DT-45 – used in the 911 Carrera, the 2009 997 Carrera and Carrera S models; the 2009 Cayman and Boxster, along with a higher torque version, the 7DT-70 in the 2010 911 Turbo. Take a closer look at the advantages of both the PDK dual-clutch transmission and the manual transmission options in the Porsche 911. My videos are for enter.
Pdk Dual Clutch
Audio hijack pro free license key. Porsche has also revealed the prices of future models. 718 Cayman and 718 Boxster, equipped with a basic configuration of a 6-speed manual gearbox, are already available at a price of $ 86,800 and $ 88,900 respectively. With the new PDK gearbox, cars will cost $ 90,530 and $ 92,630 respectively.
Porsche faces 2021 with innovations in the range of sports access models, the 718 , which come with new standard equipment for both four-cylinder and six-cylinder versions. Some improvements that will reach the units destined for Europe, from September .
The standard equipment of the models for the United States improves with the dual-zone automatic climate control, heated seats, photochromic mirrors, rain sensor, Apple CarPlay connectivity and adaptive xenon headlights for crossing and road, with the peculiarity of the finish Dark interior and dynamic light function for the 718 GTS 4.0.
But the most interesting thing lies in the six-cylinder versions , those of the 718 Spyder, 718 GTS 4.0 and 718 Cayman GT4. Until now only available with a six-speed manual gearbox, the German sports brand expands configuration possibilities with the PDK seven-speed automatic dual-clutch transmission.
(Also read: Light, fast, and powerful, the Porsche 718 also runs under $100,000)
A transmission, for the first time used in these versions of the 718 Boxster and 718 Cayman , that will improve performance with much faster shifting, which can lower acceleration from zero to 100 kmph in up to half a second, stopping the clock at the 3.8 seconds compared to the 4.3 seconds that are homologated with the six-speed manual gearbox on the 4.0-litre boxer six-cylinder engine.
Three more than exclusive variants that, in addition to having 400 HP of power, also have standard equipment that reinforces sportiness, with the Sport Chrono package , the sports exhaust system, the PASM sports suspension or the sports front seats Sport Plus.
Technology explained: PDK gearbox
Starting at the bellhousing end (far left), the PDK gearbox uses two concentrically mounted wet clutches connected to two separate input shafts. The 202mm outer clutch is attached to the solid inner shaft, with the 153mm inner clutch connected to the hollow outer shaft.
This effectively splits the gearbox in two, with the solid inner input shaft used to drive the odd-numbered ratios (centre) and the even-numbered gears connected to the outer shaft (far right).
When accelerating in first gear, the outer clutch is fully engaged, while the electro-hydraulically actuated selector forks preselect second gear in the other half of the gearbox.
When the ECU determines that it is time to shift, an electronic signal is sent to the clutch actuators, disengaging the outer clutch and engaging the inner unit. The same process happens under braking (for example, from fourth gear, where the gearbox would preselect third in readiness for the engagement of the outer clutch).
The ECU measures all of the car’s vital dynamics (including throttle and brake travel, acceleration and deceleration) in order to determine the next suitable gear to select.
In automatic mode, the mode selected (Normal, Sport, Sport Plus) determines how long the PDK gearbox holds onto each gear. A manual override allows the drivers to take control (via buttons or paddles) and determine the gear shifting.
Pdk Gearbox Reliability
Pdk Gearbox Porsche
PDK’s ability to shift in less than 100 milliseconds, coupled with the wet clutch system’s small degree of slip, means that normal driving changes are smooth and efficient, reducing CO2 emissions and improving fuel efficiency as well as performance.
Porsche 7 Speed Pdk Transmission
To read how the PDK gearbox fared against the Porsche 991’s traditional manual transmission, check out Total 911’s comprehensive road-and-track test from issue 113.