Hear it on the road.
Nissan Sukairain GT-R
After discontinuing the Skyline GT-R in 1973, Nissan revived the GT-R nameplate again in 1989. At the time Nissan was competing in Group A Racing with the Skyline GTS-R. Nissan wanted to retire the GTS-R in favor of a more competitive vehicle. The new generation of the GT-R, E-BNR32 chassis (commonly shortened to R32), was designed to dominate Group A class racing.
Nissan Kohki (Nissan’s power train engineering and manufacturing facility) originally tested a twin turbocharged 2.4 L (2,350 cc) bored and stroked version of the RB20 engine. This set up resulted in a power output of 233 kW (317 PS; 312 hp) and used a rear wheel drive drivetrain.
Under Group A regulations, a turbocharged engine must multiply its engine displacement by 1.7, putting the new Skyline in the 4,000 cc class, and requiring the use of 10-inch-wide tyres. Knowing that they would be required to use 10-inch-wide tyres, Nissan decided to make the car all wheel drive. Nissan developed a special motorsport-oriented AWD system for this purpose called the ATTESA E-TS.
Although this assisted with traction, it made the car 100 kg (220 lb) heavier; the added weight put the GT-R at a disadvantage to other cars in the 4,000 cc class. Nissan then made the decision to increase the displacement to 2,600 cc, and put the car in the 4,500 cc class, with the car’s weight near-equal to competing cars. The 4,500 cc class also allowed for 11-inch-wide tyres. New engine block and heads were then developed to better match the increased displacement. The result was a car that had a power output of 447 kW (608 PS; 599 hp).
Later REINIK (Racing & Rally Engineering Division Incorporated Nissan Kohi) produced Group A racing engines rated between 373–485 kW (507–659 PS; 500–650 hp) depending on track conditions.