Nissan GTP ZX-Turbo
Encyclopedia
The Nissan GTP ZX-Turbo (also known as the GTP ZX-T) was a series of racing cars developed for Nissan Motors
Nissan Motors
, usually shortened to Nissan , is a multinational automaker headquartered in Japan. It was a core member of the Nissan Group, but has become more independent after its restructuring under Carlos Ghosn ....

 by Electramotive Engineering to compete in the IMSA GT Championship
IMSA GT Championship
IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States and occasionally in Canada.-History:...

. Running from 1985 to 1990, they were known for being the first car to defeat the Porsche 962
Porsche 962
The Porsche 962 was a sports-prototype racing car built by Porsche as a replacement for the 956 and designed mainly to comply with IMSA's GTP regulations, although it would later compete in the European Group C formula as the 956 had...

 which had dominated IMSA's premiere GTP category. This led to Nissan winning the constructor's championship in 1989 and 1990, during which they were replaced by the newer NPT-90
Nissan NPT-90
The Nissan NPT-90 was a racing car developed in 1990 for Nissan Motors by Nissan Performance Technology Incorporated , formerly known as Electramotive Engineering. It was a replacement for the highly successful GTP ZX-Turbo that had won the IMSA GT Championship in 1989...

.

The GTP ZX-Turbo was named due to its shared engine with the production Nissan 300ZX
Nissan 300ZX
The Z31 chassis designation was first introduced in 1983 as a 1984 Nissan/Datsun 300ZX in the US only. The 300ZX, as its predecessors, was known as a Nissan in other parts of the world. This continued in the US until 1985 model year when Nissan standardized their brand name worldwide and dropped...

, the turbocharged VG30ET
Nissan VG engine
The VG engine family consists of V6 piston engines designed and produced by Nissan for several vehicles in the Nissan lineup. The VG series started in 1983 becoming Japan's first mass produced V6 engine. VG engines displace between 2.0 L and 3.3 L and feature an iron block and aluminum...

 V6
V6 engine
A V6 engine is a V engine with six cylinders mounted on the crankcase in two banks of three cylinders, usually set at either a right angle or an acute angle to each other, with all six pistons driving a common crankshaft...

. Although the engine block was similar, the GTP ZX-Turbo's engine was extensively modified to cope with the stress of racing.

Development

In 1984, Nissan Motors
Nissan Motors
, usually shortened to Nissan , is a multinational automaker headquartered in Japan. It was a core member of the Nissan Group, but has become more independent after its restructuring under Carlos Ghosn ....

 named Electramotive Engineering as their official North American racing development arm in an attempt to establish Nissan in the United States following the use of the Datsun
Datsun
Datsun was an automobile marque. The name was created in 1931 by the DAT Motorcar Co. for a new car model, spelling it as "Datson" to indicate its smaller size when compared to the existing, larger DAT car. Later, in 1933 after Nissan Motor Co., Ltd...

 name. Nissan wished to use the IMSA GT Championship
IMSA GT Championship
IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States and occasionally in Canada.-History:...

 as a way of showcasing their technology, similar to what they had done at the 24 Hours of Le Mans
24 Hours of Le Mans
The 24 Hours of Le Mans is the world's oldest sports car race in endurance racing, held annually since near the town of Le Mans, France. Commonly known as the Grand Prix of Endurance and Efficiency, race teams have to balance speed against the cars' ability to run for 24 hours without sustaining...

 beginning in 1983. Electramotive would be tasked with maintaining, modifying, and racing the cars. Nissan would provide the VG30ET
Nissan VG engine
The VG engine family consists of V6 piston engines designed and produced by Nissan for several vehicles in the Nissan lineup. The VG series started in 1983 becoming Japan's first mass produced V6 engine. VG engines displace between 2.0 L and 3.3 L and feature an iron block and aluminum...

 motors, although Electramotive would aid in developing the engine for racing. For the chassis, Nissan and Electramotive would turn to Lola Cars International to construct their new car to their specifications.

The first three chassis, termed Lola T810, would be completed in early 1985. This initial year of competition was used for development of the new car in preparation for 1986. Electramotive would be tasked with modifying elements of the T810 to better adapt to the smaller tracks and shorter sprint races used by IMSA GT. This would lead to the cars being renamed GTP ZX-Turbos as their design was evolved beyond the initial T810.

Three more T810 chassis would be constructed by Lola and adapted by Electramotive by the end of 1987. Some of these cars actually shared their tub off of an earlier Lola design, the T710, better known as the Chevrolet Corvette GTP
Chevrolet Corvette GTP
The Chevrolet Corvette GTP was a GTP-class racing car which participated in the IMSA GT Championship from 1984 until 1989. Used for General Motors factory effort in IMSA GT, the car was developed in conjunction with Lola Cars International...

. However modifications to the cars would eventually extend to the point that Electramotive would begin to construct their own chassis to replace the older cars, no longer relying on Lola for the cockpit tubs. A total of five Electramotive-built tubs would be completed in 1988. Electramotive would later become Nissan Performance Technology Inc. (NPTI) in 1990, finally retiring the GTP ZX-Turbos once the new NPT-90s were completed halfway through the season.

1985 - 1986

The first Lola T810 would be completed soon after the 1985 season had begun, with that initial chassis making its competition debut at Laguna Seca
Mazda Raceway Laguna Seca
Mazda Raceway Laguna Seca is a paved road racing track used for both auto racing and motorcycle racing, originally constructed in 1957 near both Salinas and Monterey, California, USA....

. Electramotive founder Don Devendorf and co-driver Tony Adamowicz took the car to eleventh place, seven laps down from the race winner. Following a heavy accident in practice at Charlotte
Lowe's Motor Speedway
Charlotte Motor Speedway is a motorsports complex located in Concord, North Carolina, United States 13 miles from Charlotte, North Carolina. The complex features a quad oval track that hosts NASCAR racing including the prestigious Coca-Cola 600 on Memorial Day weekend and the Sprint All-Star Race...

, the car would not return until late in the season. The car had a ninth place finish at Sears Point
Infineon Raceway
Infineon Raceway, formerly Sears Point Raceway, is a road course and drag strip located on the landform known as Sears Point in the southern Sonoma Mountains near Sonoma, California, USA. The course is a complex series of twists and turns that go up and down the hills...

 before mechanical problems did not allow the car to finish any of the remaining races that season.

Nissan choose to skip several rounds of the 1986 season in order to concentrate on development, including the 24 Hours of Daytona
24 Hours of Daytona
The 24 Hours of Daytona, currently known as the Rolex 24 Daytona for sponsorship reasons, is a 24-hour sports car endurance race held annually at Daytona International Speedway in Daytona Beach, Florida. It is run on a combined road course, utilizing portions of the NASCAR tri-oval and an infield...

 and 12 Hours of Sebring
12 Hours of Sebring
The 12 Hours of Sebring is an annual motorsport endurance race for sports cars held at Sebring International Raceway, a former Army Air Force base in Sebring, Florida...

. The newly named GTP ZX-Turbo made its season debut in the streets of Miami, but this was followed by a string of problems in the future rounds. The car would eventually be able to finish at Mid-Ohio
Mid-Ohio Sports Car Course
Mid-Ohio Sports Car Course is a road course auto racing facility located in Troy Township, Morrow County, Ohio, United States, just outside of the village of Lexington...

 with a career best of seventh, but Electramotive would be able to improve on this with the car showing its first true potential of the season, fighting with the leaders at Portland
Portland International Raceway
Portland International Raceway is located in Portland, Oregon, USA's, Delta Park complex on the former site of Vanport, just south of the Columbia River. It is west of a light rail station and less than a mile west of Interstate 5....

 and eventually coming home in third with Geoff Brabham
Geoff Brabham
Geoff Brabham is an Australian racing driver. He is the son of three-time Formula One World Champion Jack Brabham. Brabham spent the majority of his racing career in the United States. He raced successfully in CART early in his career. In ten appearances in the Indianapolis 500, with a best result...

 at the helm. This would be immediately followed at the next round with a fourth place finish. The success would not last though, as mechanical problems would render the car unable to finish for several rounds. The final race of the season in the streets of Columbus
Columbus, Ohio
Columbus is the capital of and the largest city in the U.S. state of Ohio. The broader metropolitan area encompasses several counties and is the third largest in Ohio behind those of Cleveland and Cincinnati. Columbus is the third largest city in the American Midwest, and the fifteenth largest city...

 would see a distant fifth place, earning Nissan seventh in the constructor's championship with their points total.

1987

Once again deciding to skip the longer rounds of the IMSA season, the GTP ZX-Turbo debuted at Miami once again. However lessons learned from the previous season as well as testing during the winter had allowed Electramotive to greatly improve the car. This earned the GTP ZX-Turbo its maiden win at Miami, defeating a Porsche 962
Porsche 962
The Porsche 962 was a sports-prototype racing car built by Porsche as a replacement for the 956 and designed mainly to comply with IMSA's GTP regulations, although it would later compete in the European Group C formula as the 956 had...

 by eleven seconds after three hours of racing. Nissan's success would be short lived though as the next rounds at Road Atlanta
Road Atlanta
Road Atlanta is a 2.54-mile road course located just north of Braselton, Georgia, USA. The facility is utilized for a wide variety of events, including professional and amateur sports car and motorcycle races, racing and driving schools, corporate programs and testing for motorsports teams...

 and Riverside would see the car failing to finish due to clutch failure and an accident respectively. Electramotive would be able to overcome these problems at Laguna Seca with a fifth, before problems returned at Mid-Ohio.

Electramotive would be unable to find much success until the final round of the season at Del Mar
Del Mar, California
Del Mar is an upscale beach town in San Diego County, California. The population was 4,161 at the 2010 census, down from 4,389 at the 2000 census. The San Diego County Fair is hosted on the Del Mar Fairgrounds every summer. Del Mar is Spanish for "of the sea" or "by the sea", because it is located...

, with the GTP ZX-Turbo closing the season with a sixth place finish. Although Nissan managed to take an improved fifth in the constructor's championship, they still earned only a sixth of the total points that champion Porsche
Porsche
Porsche Automobil Holding SE, usually shortened to Porsche SE a Societas Europaea or European Public Company, is a German based holding company with investments in the automotive industry....

 had.

1988

Following their first ever victory, the Nissan program was expanded greatly in 1988 with plans for a two car team, although this would be delayed due to accidents in practice with the second car. Starting with a disappointing eighth at Miami, the GTP ZX-Turbo would begin its streak of successes that would help the car become a threat to the top teams. Beginning at their next race at Roat Atlanta, the car defeated the factory Jaguar
Jaguar (car)
Jaguar Cars Ltd, known simply as Jaguar , is a British luxury car manufacturer, headquartered in Whitley, Coventry, England. It is part of the Jaguar Land Rover business, a subsidiary of the Indian company Tata Motors....

 team by a mere four seconds. Unlike previous years, this success would continue as another victory was taken at the next round at the streets of Palm Beach
Palm Beach, Florida
The Town of Palm Beach is an incorporated town in Palm Beach County, Florida, United States. The Intracoastal Waterway separates it from the neighboring cities of West Palm Beach and Lake Worth...

, then Lime Rock Park
Lime Rock Park
Lime Rock Park is a natural-terrain motorsport road racing venue located in Lime Rock, Connecticut, United States, a hamlet in the village of Lakeville, Connecticut, in the state’s northwest corner...

, Mid-Ohio, Watkins Glen, and Road America. This success was mostly due to a technology developed in the turbocharger which allowed it an advantage over the naturally aspirated engines used in other prototypes.

The second car for the team was finally able to compete at Portland, and in a dominant performance the two cars swept the top spots. Although the next round would see one car finish in eighth, the other team car would manage to yet again take the race win. Only at the street race in San Antonio would the GTP ZX-Turbo's eight race win streak come to an end, with the lone entered car suffering electrical problems. The cars would return to winning form at Columbus, before the final round saw Nissan being defeated once again, with Derek Daly
Derek Daly
Derek Daly is a former racing driver from the Republic of Ireland. He won the 1977 British Formula Three Championship, and competed as a professional racing driver for 17 years participating in 64 World Championship Formula One Grands Prix, debuting on April 2, 1978. He scored a total of 15...

 managing to bring one of the team cars home with a beast of only fourth.

Although Nissan managed to win nine of the fourteen rounds that the GTP class competed in that season, the decision by Electramotive to skip the 24 Hours of Daytona and 12 Hours of Sebring hurt Nissan's ability to win the constructor's championship. With only three wins, Porsche's points earned at the races Nissan missed allowed them to win the championship by a mere point. However, as consolation, Nissan's Geoff Brabham
Geoff Brabham
Geoff Brabham is an Australian racing driver. He is the son of three-time Formula One World Champion Jack Brabham. Brabham spent the majority of his racing career in the United States. He raced successfully in CART early in his career. In ten appearances in the Indianapolis 500, with a best result...

 would win the drivers championship by a large margin.

1989

Wishing to overcome their narrow defeat in 1988, Electramotive and Nissan would fight hard to win the elusive championship in 1989. Nissan wisely chose to participate in the 24 Hours of Daytona and 12 Hours of Sebring, even though the reliability of the cars was in question. Indeed, Nissan's fears were realized when neither car managed to finish at Daytona, although one did last the bulk of the race. At the shorter Miami round, the GTP ZX-Turbo would return to its winning form from the previous season, once again defeating Jaguar. However at the 12 Hours of Sebring the GTP ZX-Turbo would score a surprise result, with Chip Robinson
Chip Robinson
Chip Robinson is a retired race car driver. He drove in the IMSA Camel GT series and won the 1987 24 Hours of Daytona Chip Robinson (born March 29, 1954 in Philadelphia, PA) is a retired race car driver. He drove in the IMSA Camel GT series and won the 1987 24 Hours of Daytona Chip Robinson (born...

, Geoff Brabham, and Arie Luyendyk
Arie Luyendyk
Arie Luyendyk, originally Arie Luijendijk is a Dutch auto racing driver, twice winner of the Indianapolis 500....

 taking the race victory by two laps.

With the car's endurance proven, the car took victory at Road Atlanta. Although problems took away victory on the streets of Palm Beach, the cars began a winning streak once again, taking victories at Lime Rock, Mid-Ohio, Mosport
Mosport
Mosport International Raceway is a multi-track facility located north of Bowmanville, Ontario, Canada. The facility features a , 10-turn road course; a half-mile paved oval; a 2.4 km advance driver and race driver training facility with a quarter-mile skid pad Mosport International Raceway...

, and Road America. The team had to settle for second and third at Portland as Jaguar's new car began to show its pace. However the GTP ZX-Turbos were back at Topeka with the top two positions, beginning another short streak through San Antonio and Sears Point. Defeat came once again at Tampa, while the cars would also not be able to win the season finale at Del Mar.

With ten victories in comparison to Jaguar's three, Nissan was able to easily win the constructor's championship, the first time anyone besides Porsche had won it since the GTP class had been created in 1983. Geoff Brabham edged out Chip Robinson for his second drivers championship.

1990

As the defending champions, Nissan realized that the aged GTP ZX-Turbo was now the prime target of all other competitors, leading them to begin development on the car's replacement. While this car was being built, Nissan would have to continue to use the older GTP ZX-Turbos into the 1990 season. The newly renamed NPTI team would be aided by privateer Busby Racing who ran a third car that season.

Following problems once again at Daytona, the GTP ZX-Turbos would take a victory in Miami for the third time, while Busby's new car would take second. The team would also improve on their performance at Sebring by not only taking the race win, but also second for the other team car. The streak would continue through Road Atlanta and Palm Beach before the newcomer Eagle-Toyota would overcome Nissan at Topeka.
The Topeka race would also see the debut of the GTP ZX-Turbo's replacement, the NPT-90
Nissan NPT-90
The Nissan NPT-90 was a racing car developed in 1990 for Nissan Motors by Nissan Performance Technology Incorporated , formerly known as Electramotive Engineering. It was a replacement for the highly successful GTP ZX-Turbo that had won the IMSA GT Championship in 1989...

, with the team running one car of each. Lime Rock would also see Nissan defeated, yet Mid-Ohio would have the company back on top. This time though it would be the NPT-90 defeating the GTP ZX-Turbo as the two took the top spots. Following a result of fifth behind the NPT-90's first, the GTP ZX-Turbo would be retired completely. By the next round, the second NPT-90 would be completed and replace the sole remaining GTP ZX-Turbo used by the team.

With the combined running of the GTP ZX-Turbos and NPT-90s, as well as the performance of privateers Jim Busby and later David Seabroke, Nissan would once again easily take the GTP constructors championship. Geoff Brabham would take his third drivers championship as well. One GTP ZX-Turbo would be entered by John Shapiro at the Miami round in 1991, finishing 13th before the team would fold. This would be the final race by a GTP ZX-Turbo car, although the NPT-90s would continue to carry the GTP ZX-Turbo name on them.

Other series

One of the first three Lola T810s built would be sold to the Le Mans Company in Japan for use in the All Japan Sports Prototype Championship
All Japan Sports Prototype Championship
The , abbreviated as JSPC, formed by the Japanese Automobile Federation, was a domestic championship which took place in Japan for Group C and IMSA GTP prototype cars and also featured cars that were eligible for touring car racing in its earlier years...

. Debuting late in the 1985 season, the car would suffer mechanical failures before finishing eighth at the 1000 km of Fuji
Fuji Speedway
is a race track standing in the foothills of Mount Fuji, in Oyama, Suntō District, Shizuoka Prefecture, Japan. It was built in the early 1960s and hosted the first Formula One race in Japan in 1976. In the 1980s, Fuji Speedway was used for the FIA World Sportscar Championship and national racing...

 to close out the season. The following season, the car would continue to have problems, again only finishing at the 1000 km of Fuji. This time however the car managed sixth place, 13 laps behind the winning Porsche 962. The car would be retired as the team moved on to a Porsche.

Following the retirement of the GTP ZX-Turbo in 1990, one of the former works chassis would be taken to Europe to participate in the Interserie
Interserie
Interserie is the name of a European-based motorsport series started in 1970 that allows for a wide variety of racing cars from various eras and series to compete with less limited rules than in other series....

 championship in 1991. Although quick, the car would struggle to complete races. This would lead to it being quickly abandoned.

Marketing

Debuting at a time when Nissan was phasing out the Datsun
Datsun
Datsun was an automobile marque. The name was created in 1931 by the DAT Motorcar Co. for a new car model, spelling it as "Datson" to indicate its smaller size when compared to the existing, larger DAT car. Later, in 1933 after Nissan Motor Co., Ltd...

 brand in the United States, the GTP ZX-Turbo was used by the company to promote their ability to produce sporty, advanced cars. This led to the GTP ZX-Turbos being used in television and print advertisements for the whole Nissan brand, but also specifically the 300ZX with which it shared its engine.

The GTP ZX-Turbos were also featured as part of a Miami Vice
Miami Vice
Miami Vice is an American television series produced by Michael Mann for NBC. The series starred Don Johnson and Philip Michael Thomas as two Metro-Dade Police Department detectives working undercover in Miami. It ran for five seasons on NBC from 1984–1989...

episode revolving around the IMSA GT Miami Grand Prix, although this was primarily using footage of the race itself.

External links

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