The 1974 version of the RSR used a 2.14-liter turbocharged engine to develop 500 horsepower. Installed in a race car weighing 1,764 pounds, performance was impressive. Porsche Archiv
Porsche was first on the track with FIA rules–compliant Group 5 cars. Derived from the production 930, this first-generation 935 weighed 2,138 pounds and its 2,856cc turbocharged engine developed 590 horsepower. Porsche Archiv
Porsche unveiled its new Group 5 contender at the 1,000-kilometer race at Nurburgring at the end of May 1976. While Rolf Stommelen and Manfred Schurti qualified on the pole, the car did not finish after a distributor rotor broke nine laps into the race. Porsche Archiv
At its Le Mans debut in June 1976, Porsche’s 935-002 #41 won Group 5 category with Manfred Schurti and Rolf Stommelen sharing driving duties. They finished fourth overall, covering 2,814 miles. Porsche Archiv
At Le Mans in June 1977, Bob Wollek and co-drivers J. P. Weilemans and Philippe Gurdjian drove the Kremer brothers 934 to seventh overall and first in Grand Touring class. Shown here during the 2011 Rennsport Reunion at Laguna Seca, Kees Nierop led Steve Lawrence’s 934.5 and Dennis Singleton’s Carrera RSR through the tight turn 2 hairpin. Randy Leffingwell
Peter Gregg ordered this RSR in 1975 and Weissach fitted it with a number of parts from the new 934 Turbo. Because Gregg was occupied racing a BMW CLS through 1976, Jim Busby drove the car for him, taking first overall in four races. Randy Leffingwell
At the 2011 Porsche Rennsport Reunion owner Jeff Lewis drove his 1977 ex–Vasek Polak Interscope 934. In March 1977, original owner and driver Ted Field and co-drivers Danny Ongais and Hurley Haywood finished fifth overall in IMSA GT category. Randy Leffingwell
W. H. MacEachern’s Deep Steam Cleaning sponsored Ludwig Heimrath in the 1977 Trans-Am in this car that started life as a 934. A season later MacEachern added the 935 rear bodywork behind the 934 front end that characterized the 934/5 designations. Randy Leffingwell
In his widest interpretation of FIA rules, Norbert Singer felt he could extend the widened rear fenders across the door openings as he created the 935/78 that, due to its size and color, resembled a great white whale. Neither Singer’s covered doors nor the low full-width rear wing passed the inspection. Porsche Archiv
Singer invented the car and Eugen Kolb designed it specifically for Le Mans. With Ickx, Barth, and Bob Wollek sharing duties it finished second overall but it went on to inspire dozens of look-alikes from Kremer and Jöst racing shops. Porsche Archiv
Throughout 1978, Peter Gregg campaigned this 935/78 through several North American events. At Talladega in early April he won with Brad Frisselle while here, during Rennsport Reunion IV, owner Rob Walton put it through its paces. Randy Leffingwell
Dick Barbour’s 1980 Sebring-winning 935 Kremer K3 led Andial Racing’s own version of a K3 through Laguna Seca’s turn 5 in early morning fog. Mazda Laguna Seca Raceway hosted Rennsport Reunion IV in October 2011. Randy Leffingwel
Reinhold Jöst fabricated his 935J cars in 1979 and 1980, evolving ideas from Porsche’s 935/78 Moby Dick, and from the Kremer brothers’ K3 models. Jöst and Momo founder Gianpiero Moretti co-drove this car to victory in the 1980 Daytona 250. Randy Leffingwell
For 1982 season, John Paul Sr. created a new 3.2-liter twin-turbo racer for his son to race in IMSA GTP. Sharing duties with Rolf Stommelen, they won Daytona in late January and father and son took first at Sebring six weeks later in the same car. Randy Leffingwell
Kremer vs. Kremer not only was the title of a film but it often was the reality of the world endurance racing in the early 1980s. When Porsche ended 935 production in 1979, it left a void that racers/inventors Erwin and Manfred Kremer filled with cars such as these twin-turbo K3s. Randy Leffingwell
René Metge and co-driver Dominique LeMoine during a training leg for the 1984 Paris-Dakar raid challenged the forward tipping point of their 953 4x4. Such techniques paid off for Metge and LeMoine, who won the automobile class. Porsche Archiv
Porsche’s three clean Typ 953s lined up for the start of the 1984 Paris-Dakar rally. When they left the Bois de Boulogne at the start of a 15-stage 6,000+ mile event, they traveled over paved roads through the city and countryside. Porsche Archiv
Jacky Ickx and co-driver Claude Brasseur finished 6th overall in the 6th running of the Paris-Dakar rally in 1984. The rally covered slightly more than 6,000 miles. Porsche Archiv
