In today's post dedicated to the Nissan GT-R we will present the Transmission, Suspension and Brake systems of the new Japanese sports car. The Nissan GT-R is equipped with a GR6-type transmission, exclusively developed for it. The paddle shift six-speed twin clutch gearbox has a minimum power loss.
Nissan GT-R's suspension lets you choose between three settings: R (high performance), Sports (the normal setting) and Comfort (for city driving to absorb road bumps).
The Nissan GT-T uses front and rear Brembo fully ventilated drilled steel disc brakes.
From Nissan's Press Release:
Transmission
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.
Suspension
The Nissan GT-R has a new type of suspension offering excellent straight-line stability, even over 300 km/h (1886.4 mph), plus top-class handling and braking in all situations - from urban commutes, to snowy and slushy roads, to the racetrack. The suspension is designed around the new 'Premium Mid-ship' platformpackage, and takes advantage of the perfect load balance of all four wheels.
A set-up switch allows the driver to access three different suspension modes: R (high performance), Sports (the normal setting) and Comfort (for city driving to absorb road bumps). The set-up switch electronically changes the settings on the Bilstein DampTronic dampers, specially developed for the Nissan GT-R.
In R mode, the Bilsteins ensure flat, hard cornering for high-speed and maximum feedback. In the other two modes - Sport and Comfort - the dampers are electronically controlled to produce the best possible handling/ride balance (depending on which setting is chosen). Special sensors measure eleven vehicle elements including vehicle speed, Lateral acceleration speed, steering angle speed, demand torque, estimate torque, engine rpm, brake oil pressure, normal acceleration (front axle and rear axle), ABS anti-lock braking behavior and vehicle stop information.
Bilstein DampTronic F
Mode selectable electrical controlled shock absorber can be provide the most appropriate damping force using vehicle information for any driving road and scene for customer own driving.
Select mode of set-up switch
Selective drive mode - Indication - target mode - electronic control
R mode - R - hard sporty driving - Max damping force
Normal mode - No indication - normal driving (default) - automatic control of eleven elements
Comfort mode - COMF - city driving with priority on comfort - automatic control of eleven elements
Brakes
The Nissan GT-R has huge front and rear Brembo fully ventilated drilled steel disc brakes (ƒÓ380). They give superb pedal feel as well as immense stopping power.
The full floating rotors stabilize braking while also preventing heat distortion. The inner parts of the rotors have diamond-shaped ventilated ribs, to ease cooling, while the rotors are also cross drilled to run as cool as possible.
Brembo monoblock six-piston calipers are used in front and rear for four piston type. To generate strong braking force and prevent caliper distortion, racing-style three bolt structures are used.
