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  Porsche 911 Carrera RSR
 

  Article Image gallery (62) Chassis (3) Specifications  
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Country of origin:Germany
Produced in:1973
Numbers built:8
Successor:Porsche 911 Carrera RSR Turbo 2.1
Author:Wouter Melissen
Last updated:May 02, 2014
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Click here to download printer friendly versionBrumos and Penske were entrusted with one of the development cars each for the 1973 season opening Daytona 24 Hours. Whereas the Penske entry suffered from an engine failure, the Peter Gregg and Hurley Haywood piloted Brumos car held on to score an impressive victory at the Carrera RSR's debut. One month later, one of the first production cars, again driven by Gregg and Haywood joined by owner Dave Helmick, also won the Sebring 12 Hours.

Meanwhile back in Weissach, the Porsche Motorsport engineers continued to develop the car. Among the changes was a wider rear wing, which looked like a ruff and accordingly was nicknamed the 'Mary Stuart'. The engine was also further enlarged, now displacing just under three litres. Boasting a reinforced aluminium crankcase, it was slightly heavier than the 2.8-litre engine but the increased power made up for it. This engine would be available to customers from 1974 onwards.

To prevent any homologation arguments, Porsche opted to run the Martini-liveried works cars in the the Group 5 sports car class for most of their outings. Among them was the Targa Florio where Herbert Mueller and Gijs van Lennep scored an outright victory. At Le Mans one of the works cars placed fourth overall. One was even raced by Brumos at the Watkins Glen Can-Am round where it qualified ahead of some of the true prototypes and eventually finished ninth.

At the end of the year, some of the works cars were sold while others were fitted with turbo engines for the next phase of the development, which would ultimately lead to the 934 and 935. With the 911 Carrera RSR, Porsche moved into a new direction, which helped to make the 911 the legendary road and racing car it is today and also eventually allowed Porsche to become the largest competition car manufacturer in the world.

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  Article Image gallery (62) Chassis (3) Specifications