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==Racing==
==Racing==
[[Image:BobSharpZ31.JPG|thumb|250px| The Bob Sharp Racing 300ZX]]
[[Image:IMSA300ZX.jpg|thumb|250px|The 1994 IMSA 300ZX that won the 24 Hours of Daytona.]]
[[Image:IMSA300ZX.jpg|thumb|250px|The 1994 IMSA 300ZX that won the 24 Hours of Daytona.]]
In 1984 to 1985 showroom stock racing, the 300ZX captured wins on numerous occasions. The car scored its only Trans Am win in 1986 at [[Lime Rock Park|Lime Rock]] by [[Paul Newman]] for Bob Sharp Racing.{{Fact|date=February 2007}}
In 1984 to 1985 showroom stock racing, the 300ZX captured wins on numerous occasions. The car scored its only Trans Am win in 1986 at [[Lime Rock Park|Lime Rock]] by [[Paul Newman]] for Bob Sharp Racing.{{Fact|date=February 2007}}

Revision as of 18:10, 5 June 2007

Nissan 300ZX
File:RedZ32.JPG
Overview
ManufacturerNissan
Production1983–2000 (Imports to North America ceased in 1996)
Body and chassis
ClassSports car/ Grand Tourer
LayoutFR layout
Powertrain
Transmission5-speed manual
4-speed automatic
Chronology
PredecessorNissan 280ZX
SuccessorNissan 350Z

The Nissan 300ZX, also known as the Nissan Fairlady Z, is a sports car produced by Nissan. It comprises the third and fourth generations of the Z-car line-up, respectively given the chassis designations Z31 and Z32.[1]

The 300ZX name followed the numerical convention put forth by Yutaka Katayama, the then President of Nissan Motors USA, which was used in the North American, European, and Australian markets. In the Japanese home market, the official name Fairlady Z is used.[2][3]

The Z31 and Z32 feature a 3.0 liter, V6, naturally-aspirated or turbocharged engine. Although both motors are from the same VG series and have the same displacement, the output of the Z32 is greater than the Z31. The naturally-aspirated Z32 has 222 hp and 198 lb-ft of torque versus the Z31 with 160-165 hp and 174 lb-ft of torque. Similarly, the twin-turbo Z32s have 300 hp and 283 lb-ft torque versus the single turbo Z31, which has 200-205 hp and 227 lb-ft of torque. The main difference in the newer motor is the addition of dual overhead camshafts, and for the turbocharged version, dual intercoolers and variable valve timing.[1]

The Z31 chassis was designed after the previous Z-car, the Nissan 280ZX, and had two special editions based on it. The 50th Anniversary Edition focused on luxury to celebrate the company's semi-centennial in 1984, while the Shiro Special, released 4 years later, boasted performance-oriented upgrades.[4][5] Styling would be completely redesigned with the release of the Z32, tending toward finer curves and more efficient aerodynamics. The newer chassis also featured four-wheel steering, called Super HICAS, in its top-of-the-line models. Although it was not a special edition, in 1996 Nissan designated the final 300 American units the Commemorative Edition. Production of the Z32 ceased outside of the home market and continued in Japan until August of 2000.[6]

True to its heritage, the race-only 300ZX cars had several notable victories, including the 1986 Trans Am series and the 1994 24 Hours of Daytona. However, auto sports politics and a controversial GTS-1 class win at the 24 Hours of LeMans that same year[7] prompted the International Motor Sports Association to declare the twin turbo engine illegal for future competition.[8] The 300ZX also holds the E/BMS land speed record of 419.84 km/h (260.87 mph) from the 1991 Bonneville Speed Trial.[9]

Throughout its life, the 300ZX has been praised by critics. Car and Driver placed the car on its Ten Best list for 6 consecutive years and Motor Trend awarded it as the 1990 Import Car of the Year.[citation needed] In 1996 Automobile Magazine reflected upon their years of experience with the Z-car with a single statement:[10]

The 300ZX Turbo is a dance; it's a song; it's rolling, roaring automotive art.
There is no color that doesn't suit it. There is no mood-lifting chemical substance it can't replace.


Z31

Z31
File:White300ZX.jpg
Overview
Production1983–1989
DesignerKazumasu Takagi[6]
Body and chassis
Body style3-door hatchback
Powertrain
Engine2.0 L VG20ET V6
2.0 L RB20DET I6
3.0 L VG30E V6
3.0 L VG30ET V6
3.0 L VG30DE V6
Dimensions
Wheelbase2320 mm (91.3 in) (SWB)
2520 mm (99.2 in) (LWB)
Length4410 mm (173.7 in) (SWB)
4605 (181.3 in) (LWB)
Width1725 mm (67.9 in)
Height1260 mm (49.7 in)
Curb weight1435 kg (3163 lb)

The Z31 chassis designation was first introduced in 1983 as a 1984 Datsun/Nissan 300ZX. This continued until 1985 when Nissan standardized their brand name worldwide and dropped the Datsun badge. Designed by Kazumasu Takagi and his team of developers, the 300ZX improved aerodynamics and increased power when compared to its predecessor, the 280ZX. The newer Z-car had a drag coefficient of 0.30 and used a V6 engine instead of an I6. According to Nissan, "the V6 engine was supposed to re-create the spirit of the original Fairlady Z."[6]

This new V6 (2960 cc) single overhead cam engine was available as a naturally-aspirated VG30E or a turbocharged VG30ET producing 160 hp and 200 hp respectively. The engine was either a type A or type B sub-designation from 1984 to April 1987, while models from May 1987 to 1989 had a W sub-designation. The W-series engines featured redesigned water jackets for additional cooling, fully floating piston wrist pins, and more power--165 hp naturally-aspirated and 205 hp turbocharged. The 1984 to 1987 turbo models featured a Garrett T3 turbocharger with a 7.8:1 compression ratio, whereas 1988 to 1989 models featured a low inertia T25 turbocharger with an increased 8.3:1 compression ratio to produce the 5 extra horsepower. Finally, these engines were equipped with self-adjusting hydraulic valve lifters.[citation needed]

Japanese market

On the home market, the Z31 also came with a 2.0 liter motor. The 200Z, 200ZG, and 200ZS used the VG20ET motor while the 200ZR had the RB20DET. Other than the 300ZX, the only other factory Z31 variant to use the VG30DE engine is the 300ZR.[11] The Japanese 300ZX Turbo was not subject to the tough emissions regulations found in the US, allowing it to produce 230 hp, outperforming not only its North American counterpart, but the 2.0 liter Z31s as well--their engines only made 170-180 hp. This was to, "make the most of the local taxation laws."[6]

Chassis

The Z31 chassis was based on the 280ZX, but improved upon it. Although the newer chassis had the same wheelbase and MacPherson strut/semi-trailing arm independent suspension, it handled and accelerated better than the 280ZX it replaced. Turbocharged models, except for the Shiro Special edition, had an additional innovation: 3-way electronically adjustable shock absorbers.[citation needed]

Special edition Z31 releases

Nissan manufactured two special edition Z31s. In 1984, the 300ZX 50th Anniversary Edition was released to celebrate Nissan's 50th anniversary. In 1988, the turbocharged Shiro Special debuted with pearl white paint, stiffer springs and matched shocks, a unique front air dam, paint matched wheels, Recaro seats, and a viscous, limited-slip differential. No other options were available for the Shiro, meaning all Shiros were identical. It was the fastest car out of Japan, capable of 153 mph speeds, as tested by Motor Trend with the electronic speed limiter disabled.[4] A total of 1002 Shiro Special Z31s were produced between January and March of 1988.[5]

Style and evolution

Due to its aging design, the Z31 body was slightly restyled in 1986 with the addition of side skirts and the removal of the hood scoop for a much smoother look. The old rubber spoiler was replaced with a more durable fiberglass one, and a third brake light was incorporated within the unit to comply with US safety regulations. The car was given a final makeover in 1987 that included more aerodynamic bumpers, fog lamps within the front air dam, and 9004 bulb-based headlamps that replaced the outdated sealed beam headlights. The 300ZX-titled reflector in the rear was updated to a narrow set of tail lights running the entire width of the car and an LED third brake light on top of the rear hatch. The Z31 continued selling until 1989, more than any other Z-car at the time. Over 70,000 units were sold in 1985 alone.[citation needed]

Z32

Z32
Nissan 300ZX
Overview
Production1989–2000
Body and chassis
Body style2-door convertible
3-door hatchback
Powertrain
Engine3.0 L VG30DE V6
3.0 L VG30DETT V6
Dimensions
Wheelbase2450 mm (96.5 in) 2 seater[1]
2570 mm (101.2 in) 2+2[1]
Length4305 mm (169.5 in) 2 seater[1]
4520 mm (178 in) 2+2[1]
Width1790 mm (70.5 in) 2 seater[1]
1800 mm (70.9 in) 2+2[1]
Height1245 mm (49.0 in) 2 seater, standard)[1]
1250 mm (49.2 in) 2 seater, T-bar roof[1]
1255 mm (49.4 in) 2+2[1]
Curb weight1610 kg (3550 lb) 2+2
1496 kg (3300 lb) 2 seater

weight varies with performance package

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 Z32 was also titled 300ZX because it had a the same displacement engine. However, since the engine had dual overhead cams, the engine name was revised to VG30DE. The twin-turbo model had the VG30DETT engine.

Style and evolution

The Z32 chassis would likewise undergo several changes throughout its production run between 1989 and 2000. 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.[12]

1991

  • Manual climate controls discontinued (except in convertible).
  • 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 NA 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.
  • Logo on floor mats changed from "300ZX" to "Z".
  • Hardtop coupe available at mid-year (NA only).
  • Brake master cylinder changed to new unit in February 1991.
  • Keyhole on driver's door and interior light illuminated when driver's door handle was pulled.
  • Sales: 17,652 units.[12]

1992

  • 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)
  • Mirror heaters made standard.
  • Power adjustable driver's seat standard on TT.
  • Sales: 6,708 units.[12]

1993

  • Turbo oil line insulation changed for better heat dissipation.
  • Convertible option added.
  • Upgraded Bose stereo made standard.
  • AIV/reed valves removed.
  • Sales: 11,599 units.[12]

1994

  • Front fascia became body colored instead of gray strip.
  • Rear spoiler design changed to a taller, pedestal-type.
  • Seat belts redesigned; they were moved from door mounts to true pillar mounts.
  • Super HICAS system changed to an electrically-actuated unit (previously oil pressure actuated).
  • 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.[12]

1995

  • Sales: 3,135 units.[12]

1996

  • Variable cam timing (NVTC) dropped. Factory HP rating remains at 300hp as seen on original 1996 model year window stickers and third-party dyno testing shows 300 hp.
  • OBD II electronics introduced.
  • Driver's seat back rest no longer included adjustable side bolsters.[12]
  • Sales: 400 Units. 300 limited edition. "plaque embedded on center dash with number".[13]

Racing

The Bob Sharp Racing 300ZX
The 1994 IMSA 300ZX that won the 24 Hours of Daytona.

In 1984 to 1985 showroom stock racing, the 300ZX captured wins on numerous occasions. The car scored its only Trans Am win in 1986 at Lime Rock by Paul Newman for Bob Sharp Racing.[citation needed]

From 1985 to 1987, the Electramotive-developed GTP ZX-Turbo was raced in the International Motor Sports Association's (IMSA) GTP class and also the All Japan Sports Prototype Championship, badged as a Fairlady Z, using a Lola T810 chassis and a VG30ET engine. A series of crashes attributed to tire blowouts combined with difficulty of working on the T810 chassis caused less than stellar performance for both seasons.[citation needed]

Later on between 1988 and 1989, the Nissan GTP ZX-Turbo dominated in IMSA GTP racing. Additional factory endorsement, combined with a new chassis, transmission and more reliable Goodyear tires contributed to the team's success. The SOHC VG30ET was making upwards of 1000 hp, with a power band that extended from 4000 to 9000 rpm on a single turbo.[citation needed]

From 1990 to 1995, Steve Millen drove the twin turbo 300ZX for Clayton Cunningham Racing. The car dominated the IMSA in its GTO, then later GTS categories due to its newly-designed chassis and engine. Millen would rank as the #1 Factory Driver for Nissan for 7 years and earn two IMSA GTS Driving Championships and two IMSA GTS Manufacturer's Championships. Among enthusiasts and the team themselves, the biggest triumph for the race Z32, was the victory in the 24 Hours of Daytona. In the same year at the 24 Hours of Le Mans, the 300ZX ranked first in the GTS-1 class and 5th overall, beat by two Dauer 962 Le Mans Porsches and two Toyota 94C-V LMs.[7] In an attempt to level the playing field in the GTS-1 class by reducing the allowable horsepower, the IMSA declared the twin turbo VG engine ineligible.[8] The 1995 GTS 300ZX car would debut with the V8 Nissan VH engine at Daytona[14] and would place first in the GTS-1 class at the 24 Hours of Sebring and Mosehead Grand Prix in Halifax.[15]

The JUN-BLITZ Bonneville Z32 holds the E/BMS class land speed record of 419.84 km/h (260.87 mph) set at the 1991 Bonneville Speed Trial. The vehicle was built as a partnership between JUN Auto and BLITZ. This record remains unbroken. In 1990 JUN's first Z32 went 339.2 km/h at their Yatabe test course and hit 373 km/h after some tuning at Bonneville.[9]

Awards

Motor Trend Car of the Year in 1990. Its first year on the market, also its best selling year. The Z32 300ZX Turbo was on Car and Driver magazine's annual Ten Best list every year it was available in North America, from 1990 through 1996. It was also Motor Trend magazine's Import Car of the Year for 1990. Critics said the Z32 was a complete turnaround from the Z31, which they felt was a sloppy-handling GT, far from the agile, sporty 240Z of years past. In Automobile Magazine's list of The 20 Greatest Cars of the Past Twenty Years in April and The 25 Most Beautiful Cars Ever in August of 2006, the 300ZX is praised as being, "once again beautiful, so sleek and tight and shimmering that it still looks great ten years after it went away."[10][16]

From the year it was introduced, the Z32 has also won many comparison tests against similar sports cars such as the Mitsubishi 3000GT/Dodge Stealth, Mazda RX-7, Chevrolet Corvette, Toyota Supra, Dodge Viper, and the Porsche 968.[17]

Safety

In Australia, the 1990 to 1995 Nissan 300ZX was assessed in the Used Car Safety Ratings brochure as providing "average" protection for its occupants in the event of a crash.[18]

References

  1. ^ a b c d e f g h i j k Nissan Motor Co., Ltd. (December 1990 (05)). Nissan 300ZX 1991 Service Manual. Tokyo, Japan: Nissan Overseas Service Department. Publication No.: SM1E-0Z32U0. {{cite book}}: Check date values in: |date= (help)
  2. ^ Millspaugh, Ben P. (1991). Z car: a legend in its own time. Blue Ridge Summit, PA: TAB Books. pp. 4–194. ISBN 0-8306-3536-X. ISBN-13: 978-0-830635-36-8.
  3. ^ Beck, Carl. "Fairlady Z - about that name". Retrieved 2007-02-27.
  4. ^ a b Z-Club Hungary. "Nissan 300 ZX - Z31". Retrieved 2007-02-20.
  5. ^ a b ZBUM. "US 1988 300ZX SS Registry and Information". Retrieved 2007-02-20.
  6. ^ a b c d Long, Brian (October 1999). Datsun/Nissan 280/300 ZX. Dorchester: Veloce Publishing. pp. 66–69. ISBN 1-901295-06-0. ISBN-13: 978-1-901295-06-1.
  7. ^ a b WSPR Racing. "24 h Le Mans". Retrieved 2007-03-05.
  8. ^ a b Konik, Michael (1995). "On the Edge". Cigar Aficionado Online. Retrieved 2007-03-05.
  9. ^ a b Tanaka Industrial Co., Ltd. (1997–2005). "JUN Demonstration Cars". Retrieved 2007-02-08.{{cite web}}: CS1 maint: date format (link)
  10. ^ a b Automobile Magazine (1996–2006). "The 20 Greatest Cars of the Past Twenty Years". PRIMEDIA Magazines, Inc. Retrieved 2007-03-05.{{cite web}}: CS1 maint: date format (link)
  11. ^ ZBUM. "ZBUM's Z31 FAQs". Retrieved 2007-03-13.
  12. ^ a b c d e f g TwinTurbo.NET (1998–2007). "FAQ: What are the differences between model years?". Retrieved 2007-02-08.{{cite web}}: CS1 maint: date format (link)
  13. ^ Cite error: The named reference 300zx.cl-years was invoked but never defined (see the help page).
  14. ^ STILLEN. "Racing Heritage 2". Retrieved 2007-03-05.
  15. ^ WSPR Racing. "IMSA 1995". Retrieved 2007-03-05.
  16. ^ Automobile Magazine (1996–2006). "The 25 Most Beautiful Cars Ever". PRIMEDIA Magazines, Inc. Retrieved 2007-03-05.{{cite web}}: CS1 maint: date format (link)
  17. ^ Motor Trend (April 1992). "RX-7 vs. 3000GT vs. Corvette vs. 300ZX". PRIMEDIA Magazines, Inc. pp. pp. 46-52. {{cite magazine}}: |access-date= requires |url= (help); |pages= has extra text (help); Cite magazine requires |magazine= (help)
  18. ^ Australian Transport Safety Bureau (2006-06). "Passenger vehicles built 1982-2004, 2006 update" (PDF). Used Car Safety Ratings. Land Transport NZ: 17. ISSN: 1176-9890. Retrieved 2007-02-21. {{cite journal}}: Check date values in: |date= (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
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