The R90CK/R90CP is a standard developed by Nissan sports car prototype, which was used in the years 1990 to 1993.
A total of six cars were built, five of which were of the type R90CK, another, built for the Japanese version R90CP championship was called. The cars were used in the factory during the 1990 season, before Nissan 1991 one of the vehicles at Nova Engineering relayed that the truck revised and renamed in R91CK.
- 2.1 Le Mans
- 2.2 JSPC
- 2.3 WSPC
- 2.4 Daytona
- 3.1 JSPC
- 3.2 Daytona
The R90CK is an evolution of the Nissan R89C. This is also indicated the "K" in the model number down, it stands for the Japanese " kai " what "improved" means in German. Like its predecessor the R90CK Nissan Motorsports Europe ( NME ) was designed and built in collaboration with the sports car maker Lola.
The new car had improved aerodynamics and longer suspension stroke, as well as the consumption of the engine was reduced. In the further the better accessibility for the main aggregates was a key point.
Is powered R90CK, which is equipped with a 5 -speed transmission, by an 8 -cylinder twin-turbo with 3,496 cc displacement, which carries the name " VRH35Z ". In qualifying tune the engine achieves an output of up to 1200 hp, while he makes about 800 hp at 7600 revolutions per minute for long distance trim. Transferred to the road is the power of 18 -inch and 28.5 -inch ( 72 cm) wide rear tires while the front 17 inch and 25.5 inch ( 65 cm) wide tires are mounted.
The Nissan R90CP is also an improved version of R89CK. The "P " in the model designation stands for Oppama, where the development center of Nismo ( Nissan Motorsports International) is located. There was revised completely led by Yoshi Suzuka the aerodynamics of the vehicle.
During tests on the track of the Nissan Test Center in Arizona the R90CP reached a top speed of 396 km / h With 366 km / h R90CP was in 1990 in Le Mans the fastest car, but this time in race trim, ie with more downforce and therefore higher air resistance.
In the JSPC Nissan began two R90CP. One of the chassis has been completely rebuilt, the other was a for R90CP modified R89C ( chassis 2 ).
The Nissan R91CK is one of Nova Engineering modified Nissan R90CK ( chassis 7 ). For the 1992 season, the aerodynamics of the car with the help of NISMO was revised again. In addition to the modified bodywork, the car stands out in particular through the yellow livery with "From A" sponsorship of the factory Nissan.
Racing applications - Factory
At the 24 Hours of Le Mans 1990, a total of seven Nissan vehicles were at the start. In addition to the five current works cars also competed two year-old car privately employed. The works cars were used by three different charge at Nissan Motor sports departments. Two vehicles were from the American Nissan Performance Technology Inc. ( NPTI ), two from Europe and one from the NME native to Japan Team Nismo. The cars of the Nissan racing team differed despite the same base between them because they used parts and aerodynamic packages from different suppliers. Overall, for Nissan thus 21 riders at the start.
In the qualification Mark Blundell was able to win the pole position with the R90CK. With maximum charging and special qualifying slicks he scored a time of 3:27,020 minutes, with whom he was six seconds faster than second-placed Porsche. The R90CP used by the Japanese team qualified in third position, followed by two more R90CK in fourth ( NPTI ) and five ( NME ).
The checkered flag saw only three of the seven launched Nissan. The highest-ranked vehicle was the R90CP in fifth place ( Hasemi / Hoshino / Suzuki), the number 84 prepared by the U.S. NPTI team ( Earl / Roe / Millen ), ranked 17th place and the R89C used by the private team Courage Compétition was as 22 counted.
With the Nissan R90CP Nissan Motorsports International began in 1990 very successfully in the Japanese Sports Car Championship All Japan Sports Prototype Championship ( JSPC ) part. All six races, the team finished in the points, where it won three wins and three additional podium finishes. Thus, Nissan won the manufacturers' championship well before Porsche and Toyota. In the drivers' championship, the duo Hasemi / Olofsson finished level on points with their teammates Hoshino / Suzuki the first place.
The inserts in the World Sportscar Championship ( WSPC ) were carried out by NME. From the second race of the season in 1990 the team went with two Nissan R90CK at the start, after it had started the season opener at Suzuka next to the modified R89C, now called R90CP, two year - R89C. In nine races, among others, Mark Blundell and Julian Bailey drove out two second and three third-place finishes and eight other point arrivals. This Nissan finished second in the team standings behind the dominant team Sauber Mercedes and Silk Cut Jaguar in third place.
At the 24 Hours of Daytona in 1991, the U.S. NPTI team sat down again a three proven Nissan R90CK. While two of the vehicles were eliminated, Geoff Brabham occupied, Chip Robinson, Derek Daly and Bob Earl in second place.
Racing applications - private
In the season 1991 Nova Engineering began a to R91CK R90CK modified chassis with the drivers Akihiko Nakaya and Volker Weidler in Japanese Endurance Championship. Three second places and a sixth and tenth place secured the duo in sixth place in the drivers' championship.
Also in 1992, the team went back to the JSPC while Weidler remained on the team, Nakaya was replaced by Mauro Martini. In the course of the season ill Weidler from tinnitus, which he suffered from balance problems among others. He decided, therefore, to end his career and was replaced by Katsutomo Kaneishi. This later had soft Heinz -Harald Frentzen. A second, four third and a sixth place finish could Mauro Martini the season sixth in the drivers' championship.
In the 1000 km of Suzuka the R91CK 1993 played his last race in the commercial motor sport. The drivers were Mauro Martini and Heinz -Harald Frentzen.
In 1992, the R91CK addition to JSPC also participate in the 24 Hours of Daytona. In addition to Martini and Jeff Frentzen Krosnoff acted as third driver. The team finished in eighth place.