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HOME » GTRForums Features » Tech & FAQ

GTR Transmission
Author: Ali Allage
Page: 1

The Nissan GT-R uses an all-new GR6-type transmission, exclusively developed for the car. The paddle shift six-speed twin clutch gearbox is highly efficient - unlike an automatic transmission with conventional torque converter, there is minimum power loss so response and fuel economy is improved.

In M range (for manual transmission mode), the paddle shift gives exceedingly quick changes. Such quick gear changing maintains the turbo boost, so acceleration is one strong powerful seamless burst.



The twin clutches make a significant contribution to shift speed. There are separate clutches for the odd (1,3,5) and even (2,4,6) gears. When the car is running in an odd number gear, the adjacent even numbered gears are pre-selected and are ready to make the shift immediately in the sequential-shifting gearbox. When downshifting, a synchronized rev control 'blips' the throttle precisely to synchronize engine speed for extra-fast downshifts. Borg-Warner triple cone synchronizers are used.





When R range - the sportiest setting - is chosen on the set-up switch, a computerized control predicts the driver's next gear change, based on throttle opening, vehicle speed, braking and other information.

The Nissan GT-R uniquely offers exceedingly quick gear shift speeds and full automatic transmission. In A (for automatic transmission) range, the car changes gear automatically, in the most fuel efficient manner. Higher gears are used whenever possible, benefiting from the car's massive 588 Nm (60kgm) of torque, and its long and flat torque curve. The car can be driven in sixth gear for long periods at low speeds, and still offers good throttle response. Such docile behavior is at odds with most equivalently fast supercars and is one of the many unique aspects of this technology flagship.



The E-TS electronic traction control and rear final drive with limited slip differential (for better power delivery) are both integrated into the surprisingly compact and light rear transaxle. By placing the input/output shafts diagonally, the transmission is flat and the car's center of gravity can be lowered.

One highly useful and unusual feature is the Nissan GT-R's Hill Start Assist. On an uphill gradient, which the car automatically recognizes, the system maintains brake pressure for about two seconds after the release of the brake pedal, making hill starts easy.

The parts which have been processed using the latest production equipment, are looked after and assembled one by one, by the hands of one skilled mechanic. High precision and full reliability is ensured with the latest inspection machinery.

GR6 Dual Clutch Transmission production plant: Aichi Machine Industry Co.,Ltd.



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