In 1989 Nissan competed with the R89Cs, developed in conjunction with Lola, in both the World Sportscar Championship and the All Japan Sports Prototype Championships. For the 1990 season they decided to actually develop two different cars. The chassis of the R90C was still built by Lola but then the car for the WSC would have been designed by Nissan Motorsports Europe, starting from the R89C and improving it, while the JSPC's R90 would have been built by Nismo, directly in Japan. The car were named respectively R90CK and R90CP, with this second one having a low downforce design compared to the CK.
The one in this video is a R90CK, chassis R90-C-005, that I saw during the recent Mugello Classic historic weekend by @peterautoracing, driven by my friend Olivier and managed by Scott Sport. Chassis 05 didn't have a successful career, with lots of retirements mainly caused by fuel leaks, both at Le Mans in 1990 and at Daytona in 1992, with a further retirement in the same race the year before. Following the unfortunate results, it was retired to the Nissan Heritage Collection. More than thirty years later, Ascott Collection managed to get the R90CK out of the Nissan collection, had it restored and made it racing ontrack again.
The R90CK is powered by a 3.5-litre, twin-turbocharged Nissan VRH35Z V8 engine able to produce over 800 hp and 780 Nm of torque with a curb weight of just 900 kg. Chassis R90-C-005 has a pretty interesting feature: its exhaust system. Compared to the typical side exits, with the wastegate pipe separated from the actual exhaust, the VRH35Z on this car is fitted with a curved pipe (in which both the exhaust and the wastegate pipes merge) which lets all the gases escape directly 'inside' the rear diffuser. Why? I hope some of you will give me an answer hehe but I believe it might have to do with IMSA rules, as all the Nissan entries (even the FromA yellow R91), raced with this configuration in Daytona.
Enjoy it!
0:00 Walkaround & Close Ups
0:25 Warm Up
2:24 Pit Exit
2:53 In Action On Track
#NissanR90CK #R90CK #GroupCRacing
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