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2014 Nissan GT-R reflects dedication to development of legendary 545-hp supercar
Considered by many to be the perfect “street-able” supercar at its launch, the team behind the creation of the Nissan GT-R has never slowed down. The relentless ongoing development of the GT-R has been driven by the fact that the GT-R competes in a rarified supercar segment against vehicles costing more than twice as much - and where bragging rights can be won or lost by mere fractions of a second. The new 2014 Nissan GT-R continues the tradition. Set to go on sale at select certified dealerships in the United States in January 2013, the latest iteration of the GT-R is another step forward in the effort to deliver passion and emotion to customers through “extreme development.”
Much of that development has taken place on the world’s most challenging racing circuits, including the famed Nurburgring where the GT-R set production car lap records in both 2008 and 2009. The most grueling of these ongoing track tests was staged in May 2012 with the entry of an essentially stock Nissan GT-R in the Nurburgring 24 Hour sports car endurance race, where it finished 1st in class and 30th overall. More than just a test of the GT-R’s durability and reliability under the most extreme conditions, the around-the-clock race was also a development trial for key GT-R senior engineering staff members that were involved in every stage of the project from vehicle prep to pit stops to post-race teardown and analysis. The experience is expected to have a long-ranging impact on the growth of the GT-R and the core development team.
“With the entry into an actual 24-hour racing competition, GT-R’s unique development process not only took an incredible step into a new dimension, it did so under the eyes of 100,000-plus spectators,” said Al Castignetti, vice president and general manager, Nissan Division, Nissan North America, Inc. “The development of a super high performance vehicle demands testing your own limits as well as the vehicle’s, which was the case at Nurburgring and will certainly pay off in our GT-R customers’ enhanced driving enjoyment.”
2014 Nissan GT-R: The Development Continues
Following a major change to GT-R’s renowned engine for the 2013 model year - including improved intake efficiency, reduced airflow resistance, improved exhaust emissions efficiency and a 15-horsepower increase to 545 hp (along with a 15 lb-ft increase in torque to 463 lb-ft) - the development of the engine continues for the 2014 model year.
New fuel injectors are adopted for enhanced torque response in the 4,500 - 6,000 rpm range, improving throttle and acceleration feel at mid- and high-rpm ranges. Also, an oil pan baffle has been added to stabilize oil behavior and oil pressure under high performance driving conditions. The baffle reduces rotational friction, which contributes to the increased responsiveness. As in previous years, each engine is hand-assembled from beginning to end in a special clean room by a single specially trained technician, a process similar to racing powerplant construction. For 2014, an aluminum nameplate is added to each engine showing the name of the engine constructor.
The GT-R’s advanced VR38DETT 3.8-liter twin turbo V6 engine again features innovative plasma-sprayed bores (versus cast iron liners) for reduced friction, lighter weight, enhanced cooling, power output and fuel efficiency; a symmetrical independent intake and exhaust manifold system featuring twin high-performance IHI turbochargers; a secondary air management system for improved cold-start emissions performance; a thermostatically controlled oil-cooling system; an oil scavenger pump to maintain oil flowing to the turbochargers; and a lateral wet and dry sump oiling system. Fuel economy is again rated at 16 mpg City and 23 mpg Highway.
The Nissan GT-R’s unique Premium Midship platform, created expressly for use with the GT-R, enables the use of a world’s first independent rear transaxle ATTESA E-TS all-wheel drive system, which optimizes weight distribution and handling capability. The rear drive-biased system can vary torque split from 0:100 to 50:50 depending on speed, lateral acceleration, steering angles, tire slip, road surface and yaw rate. Of note is a special GT-R-specific yaw-rate feedback control, which measures the differences between the target yaw rate calculated from steering angle and actual yaw rate detected by the yaw-rate sensor and G sensor to adjust torque bias.
The DampTronic system features three driver selectable settings - Normal; Comfort, for maximum suspension compliance; or R. The same three-stage adjustability is also available for the VDC system and transmission shift operation.
Again in 2014, the GT-R runs on Dunlop SP Sport Maxx GT 600 DSST CTT ultra high performance run-flat nitrogen-filled tires designed to match the suspension characteristics. Standard tire sizes are 255/40ZRF20 front and 285/35ZRF20 rear. Optional Dunlop SP 7010 all-season run-flat tires are again offered as part of the Cold Weather Package.
Functional, High Performance Aerodynamics and Style
The Nissan GT-R’s dramatic styling is unchanged for 2014. Every aspect, from the overall design to the smallest details, is created to maximize the vehicle’s driving experience - as well as to suggest GT-R’s supercar level of performance.
The GT-R’s hybrid body construction is again a combination of steel, carbon fiber and die-cast aluminum, providing a unique combination of stiffness, precision and lightness.
The body features a low coefficient of drag of 0.26, achieving high front and rear downforce. GT-R’s front fenders express power and stability, while the “aero-blades” on the fenders’ edges provide optimum airflow around the tires and along the body. The vents in the fenders’ trailing edges assist in providing front downforce and optimizing side airflow. The aggressive front end, with a large hood bulge and enlarged central air intake, provide a sophisticated style as well as undisturbed airflow for power and cooling. The “super wide beam” headlights feature three additional sub-reflectors (compared to conventional lights) to give a wide illumination spread.
The Nissan GT-R’s four-passenger cabin features a sloping “aero blade canopy” roofline and a curved C-pillar “sword edge,” which expresses the distinctive GT-R identity, as well as facilitating air flow around the rear of the vehicle. The signature rear view of the GT-R is provided by its hallmark four-ring taillights, while air flow above and below the vehicle is managed by the functional rear carbon fiber underbody diffuser, rear venting, rear spoiler and large, integrated quad exhaust tips.
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