The variable valve timing has been reprogrammed, and there are new fuel injectors with a different spray pattern that's said to promote better low - end power. (automobilemag.com)
Under the Hood After many increases over the past few years, the output of the GT - R's twin - turbo 3.8 - liter V - 6 holds steady at 545 horsepower and 463 pounds - feet of torque for 2014, but the engine gets new fuel injectors that Nissan says enhance torque response in the engine's upper rpm range and improve throttle feel. (cars.com)
The Track Edition's performance enhancements are added to a significant number of upgrades to the GT - R for the 2014 model year, ranging from the adoption of new fuel injectors for enhanced torque response in the 4,500 — 6,000 rpm range and improved throttle and acceleration feel at mid - and high - rpm ranges, to the addition of an oil pan baffle to stabilize oil turbulence and oil pressure under high performance driving conditions. (2009gtr.com)