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 Porsche 935 photo

1981 Porsche 935

History

In 1976, Porsche introduced a racing version of the Porsche 930/911 Turbo which they dubbed, the 935. It was designed for FIA-Group 5 competition and was constructed in similar fashion to the Porsche 934, which was used in Group 4 competition.

The works team, with sponsorship by Martini, entered the 935 in the FIA World Championship for Makes with team drivers, Jacky Ickx and Jochen Mass in one car and Rolf Stommelen and Manfred Schurti in another car. The Porsche 935 was an evolutionary process, as its original nose was later replaced with more aerodynamic versions better suited to high speed competition. The bodywork changed and a large wing was added to the rear of the vehicle. The rear fenders were expanded and the car was given a wider axle. The Porsche 935 won all of the major endurance races that included LeMans, Nurburgring, Daytona, Sebring, and Watkins Glen.

Group 4 competition was created for production-based GT cars and the Group 5 was for race cars based on production models. For the 1976 season, the FIA declared that the World Champion of Makes would be won from the Group 5 class, which Porsche won with their 935.

For the 1977 season, the Porsche 935's were sold to privateer teams, such as Georg Loos and Kremer Racing. The single turbo was replaced by two KKK units and the body was again changed. The privateers were using the older cars while the factory raced with the newer machines. This left the privateers unhappy, but since the Porsche 935/77 machines were not as reliable, they could be beaten.

For 1978, the famous 'Moby Dick' styling of the Porsche 935 appeared. The Porsche 935/78 had a long tail, and a frontal area that had been lowered by 10cm. The car had been optimized for low drag and its appearance earned it the nickname, Moby Dick. Powering these cars were a 3.2-liter, water-cooled, four-valve cylinder head engine capable of generating 895 horsepower. The cars reached speeds of 360 km/h at LeMans and were capable of passing the prototype cars such as the Renault and their own Porsche 936.

Throughout the seasons, the FIA, SCCA, IMSA, and CSI continued to modify the rules, which had the teams struggling to maintain a compliant group of cars. The 935, over the years, came in many different configurations powered by a wide variety of engines that included a 2.0-, 2.2-, 3.0-, and 3.2-liter size.

Factory development of the 935 slowed and eventually stopped, and tuner development continued where they left off. The most famous iteration came from Kremer Racing of Cologne, Germany. They were powered by twin-turbocharged 3.2-liter six-cylinder engine capable of producing 740 horsepower.

In 1982, the FIA discontinued Group 5 competition. The 935 continued its racing career in the IMSA GTP category. They continued to race until 1986, though their racing career had ended in 1984. Privateers entered the car in 1985 and for two races in 1986.

From 1976 through 1984, the Porsche 935 won over 150 races which includes over twenty class victories. The 935 was the overall victor at the 24 Hours of LeMans, the 12 Hours of Sebring, and the 24 Hours of Daytona.


By Daniel Vaughan | Apr 2007

1981 Vehicle Profiles

1981 Porsche 935 vehicle information

Coupe

Chassis Num: 935.81.J.R.001

This 'Moby Dick' Race car was given a lightweight, but strong, aluminum tube frame and a 935 flat-six 3.0-liter engine with twin-turbochargers and intercooled to produce around 700 horsepower. The gearbox was mounted upside-down, which aided in the ....[continue reading]

1981 Porsche 935 vehicle information

Coupe

Chassis Num: JLP-3

When it was all said and done, the Porsche 935 would become one of the fastest and most successful of all the production-based circuit racers. Throughout the late 1970s and into the 1980s, the Porsche 935 came to define its class and would make for s....[continue reading]

1981 Porsche 935 vehicle information

Coupe

Chassis Num: 01

During the late 1970's, Porsche continued to develop the 935 for various racing series and specific events. However, by 1979, the factory began to switch its efforts to the 936, 956, and 962 series of racing cars. This change of focus resulted in t....[continue reading]

Coupe
Chassis #: 935.81.J.R.001 
Coupe
Chassis #: JLP-3 
Coupe
Chassis #: 01 


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