Aftermarket Tuning
Despite early concerns about the difficulty of modifying the Nissan GT-R, many aftermarket tuning parts are now available. The previously reported "untuneable" ECU has since been hacked by several tuning houses.
COBB Tuning was the first company to access the GT-R's encrypted ECU. With their AccessPORT anyone can reprogram both the engine and transmission control units with off the shelf or custom maps. Mine's also has limited control of the ECU, and others (MCR, HKS, and Top Secret) have bypassed the unit. They have been seen testing modified GT-Rs with the former two having conducted tests at the Tsukuba Circuit.
Ecutek tuning on the other hand was the first company to manipulate and change shift points on the GTR in the TCM (Transmission Control Module) on automatic mode. This can be done at will by the driver. Ecutek also allows the driver to adjust launch control on the fly available with a wrap around boost gauge that can read over 20 PSI. Like COBB Tuning, Ecutek currently offers engine tuning on the ECU and TCM with different launch control software from LC1 up to LC5. Ecutek's RACEROM offers in addition Valet Mode, Per-Cylinder Fueling, RaceRom Launch Control, Speed Density, Map Switching, Enhanced Targeted Boost Control, Upshift boostspike prevention, Per-gear boost control limit, per-gear rev limits, RACEROM Boost control, MAF Left-Right Swap for Custom Intercoolers, Large Fuel Injector Support and Visual Knock Warning. On January 16th, 2013, Ecutek also became the first company to construct and offer Flex Fuel hardware and software capability for all Nissan GTRs. This fuel kit requires the Ecutek specific TCM. The kit provides changes in the cold start cranking compensation, changes to the maximum target boost, changes in the ignition timing, changes to target airflow, changes in cam timing, and changes in the fuel economy gauge reading all based solely on ethanol content in the gas tank. Currently, Ecutek offers more overall tuning options and features for facelifted Generation 2 DBA Nissan R35 GTRs (2011+ MY JDM and European and 2012+ MY NA) than Cobb Tuning.
Japan based tuner Mine's has created the VR38DETT super response engine which uses lightened engine internals like titanium rods, lightened pistons and many other components that allows the engine to rev-up fast. The Mine's R35 GT-R has always been one of the most sought after GT-Rs in the world for its highly responsive driving feel with the right amount of power at 800 PS (588 kW; 789 hp).
In a review by Motor Trend editor Scott Kanemura, it was revealed that the GPS system fitted to the GT-R would remove the 180-kilometer per hour (112 mph) speed limiter when the car arrives at a race track, but only on tracks approved by Nissan. Aftermarket ECUs have been developed to bypass the speed limiter, in addition to stand-alone speed-limiter defeaters. The GPS check will not be implemented in American models.
In August 2008, Nissan's official motorsport and tuning arm Nismo announced the "Club Sport" tuning package for the GT-R . The package, which is also fitted to the SpecV, includes Bilstein Damptronic compatible dampers, 20" forged aluminum wheels from Rays Engineering, Bridgestone run-flat tires, Recaro carbon fiber-shelled bucket seats, a titanium exhaust, and a revised rear diffuser with an added cooling duct. The package is supported by a warranty and saves over 20 kg (44 lb).
United States based tuner AMS Performance has set record power levels and performance numbers for the R35 GT-R. Their Alpha OMEGA performance package for the R35 boosts output to 1,884 brake horsepower and 1,562 N·m (1,152 lb·ft) of torque and boasts 60–130 mph times of just 3.1 seconds. After adjusting the boost to 29.5 psi, the AMS Performance GT-R reaches a top speed of 233.1 mph. An AMS tuned R35 GT-R was the first in the world to post an 8 second quarter-mile time at 169 mph (272 km/h). Their OMEGA package has of recent gone 8.62 at 173.8 mph (279.7 km/h) on a lower HP test pass. The AMS Performance Alpha OMEGA system is still in R&D stages and represents the top-of-the-line GT-R performance package from AMS Performance, ahead of Alpha 6, Alpha 9, Alpha 10, and Alpha 12 packages; each respectively with approximately 600, 900, 1000, and 1200 wheel horsepower when installed and tuned.
R’s Tuning and SP Engineering recently revealed Nissan GT-R which is going to be playing a main role in Fast and Furious 6. The car in the upcoming movie has modified bumpers, new vented hood, crazy fenders, side sills, carbon doors, carbon roof, and carbon spoilers.
Read more about this topic: Nissan GT-R