Nissan Z32 is First Produced
In 1989 Nissan replaced the Z31 chassis with the Z32.
Production of the naturally aspirated versions began in the Spring, followed by the twin-turbo in the Fall. The new VG30DE engine code reflected the use of Dual overhead cam heads. The twin-turbo model had the VG30DETT (Twin-Turbo) engine.
The naturally aspirated 300ZX Z32 was offered initially as a 2-seater, and was followed abruptly by a 2+2 model. The 2+2 had a longer body (8.5 inches) than the 2-seater. The twin-turbo 2+2 (four seat model) was never sold in the United States. Buyers in the U.S. who desired a four seat twin-turbo either had to legally import the foreign model, or convert a domestic NA 2+2 model to use a twin-turbo engine. The conversion process can be performed by mechanics familiar with the Z32. The conversion entails switching many parts in the engine bay to the twin-turbo versions as well as making some slight engine bay alterations to fit certain parts such as the radiator.
It was the first Japanese car to be sold following the introduction of a 280-PS power ceiling imposed by JAMA.
The Z32 chassis would likewise undergo several changes throughout its production run between 1989 and 1996. Among the milestone safety additions are the inclusion of standard driver and passenger-side airbags and true pillar-mount seat belts. The Z32's extended model year sales in 1990 reached 39,290 units.
Manual climate controls discontinued.
New electronic climate controls allowing control over air flow direction, but no more ambient temp gauge.
Nissan logo put on the front fascia (nose panel).
Driver's airbag now optional.
Air conditioner evaporator valve changed from aluminum to steel for better sound insulation.
North American brake rotors changed to Turbo units. Previous NA rotors were 4 mm thinner.
CD player option added for both the TT and NA; it was previously only available in the NA.
Bose stereo head unit changed.
Brake master cylinder changed to new unit in February 1991.
Sales: 17,652 units.
Driver's airbag made standard.
Brake caliper material changed from aluminum to iron, to help warpage/shimmy problems.
Dashboard and door complimentary material changed from fabric to suede.
Separate mirror heater switch eliminated (combined with rear defroster switch).
Power adjustable driver's seat standard on TT.
Sales: 6,708 units.
Turbo oil line insulation changed for better heat dissipation.
Convertible option added.
New style fuel injectors for the non-turbo, (except convertible), that are less prone to premature failure.
Upgraded Bose stereo made standard.
AIV system completely eliminated.
Non-turbo model, (except convertible), ECUs changed from 8-bit to 16-bit by Japan Electronic Control System Co..
Sales: 11,599 units.
Rear spoiler design changed to a taller, pedestal-type.
Seat belts redesigned; they were moved from door mounts to true pillar mounts.
HICAS system changed to an electrically-actuated unit "Super HICAS" (previously oil pressure actuated).
New style fuel injectors for the convertible.
Passenger's side airbag introduced and made standard.
Keyless entry added.
Titanium keys discontinued in November 1994.
'Reset' button removed from clock.
Off-white 'Pearl' color is dropped. Future 'Pearls' are more of a semi-metallic white.
Sales: 5,320 units.
New style fuel injectors for the twin-turbo
Twin-turbo model ECUs changed from 8-bit to 16-bit (happened late in '94 model year)
Front fascia became body coloured instead of gray strip.
Sales: 3,135 units.
Variable cam timing (NVTC) dropped. Factory HP rating remains at 300 hp (220 kW) as seen on original 1996 model year window stickers.
OBD II electronics introduced.
Driver's seat back rest no longer included adjustable side bolsters.
Sales: 2929 Units total, The last 300 of which are the "Commemorative Edition."