Nissan 300ZX

300ZX is the name given, in much of the world, to the "Z31" and "Z32" generations of Nissan's Z sports car. Like all other versions of the Z-Car, it was sold in Japan as the Fairlady Z, regardless of model year.
Sold on the Japanese market from 1983 through 2000 and in the United States from 1984 through 1996, the 300ZX name followed the numerical convention initiated with the 240Z, put forth by Yutaka Katayama, the one time president of Nissan Motors USA. The "X" designation had debuted with the previous generation Z car, the 280ZX, to signify the presence of luxury and comfort oriented features. The Z31 model of 1983 through 1989 was the more popular model, with over 100,000 more units sold than the Z32.
Both generations feature a 3.0 litre, V6 engine in either naturally aspirated or turbocharged form. Although both generations used engines from Nissan's VG family and have the same displacement, they are drastically different engines. Z31 cars are powered by the VG30E, a single overhead cam engine with a fairly simple design. Z32 generation models were powered by the VG30DE engine, an advancement on the previous design that featured double overhead camshafts, variable valve timing and individual throttle bodies for each bank of 3 cylinders. Additionally, Z31 Turbo models used a single, non-intercooled turbocharger, while Z32 generation cars featured twin, intercooled turbochargers.
in naturally aspirated form output from the Z32 was 222 hp (166 kW) and 198 lb·ft (268 N·m) of torque, compared to 160-165 hp and 174 lb·ft (236 N·m) of torque from the Z31. Twin turbocharged Z32s produce 300 hp (220 kW) and 283 lb·ft (384 N·m) torque, while the single turbo Z31 produced 200-205 hp and 227 lb·ft (308 N·m) of torque. The Z31's single overhead cam engine has 13 head bolts per head, for a total of 26, where as the Z32's dual overhead cam engine only has 8 head bolts per head, for a total of 16.