1981 Kremer Porsche 935 K4 IMSA GTP Chassis: 935-K4-01 During the mid-70s the Porsche factory reigned supreme with dominate performances from their rugged turbo-powered production racecars. By 1979 the factory began to switch its efforts to the new 936, 956, and 962 prototype, non-production based racing cars. This change spelt the end for the factory Porsche 935. However, a demand still existed for the continued development of the ferocious 935. Fortunately some years earlier Porsche had given its blessing to a number of racing teams with close ties to the factory to purchase components and drivetrains, and then designed and produced their own upgraded chassis and bodywork. While these newly constructed vehicles were still generally referred to as Porsche 935s, in reality, they were entirely new designs that advanced the 935 concept to a new level of speed and sophistication. The pinnacle of these independent efforts was the overall win at the 24 Hours of Le Mans in 1979 by the Kremer 935 K3, the last production based car ever to win overall at Le Mans. The Kremer Brothers of Cologne, Germany had enjoyed a close relationship with the factory since 1970, and were allowed to proceed
1982 Porsche 935 L Chassis: 935 L1 This is Bob Akin's famous Le Mans car of 1982. It was one of the wildest Porsche 935s of the post-factory era, and also one of the fastest. From 1977 the Porsche 935 was the car to have if you wanted to win IMSA or world championship events, but by 1982 it became very clear that a standard 935 was no longer competitive. The Porsche factory built its last 935 in 1979, so it was left to private teams to develop the cars with more aggressive aerodynamics and chassis designs. Bob Akin knew if he wanted to win, he would have to come up with something totally radical for the 1982 season. Akin commissioned Chuck Gaa of Gaaco to design and build a "Super GTP 935". To improve aerodynamics and increase the straight-line speed of the new car a Lola T600 GTP nose was used. A new purpose built monocoque bonded aluminum chassis was constructed combining the best of the new GTP technology with the proven power and reliability of the Porsche 935 mechanicals. According to the rules, the windshield and roof section of a standard Porsche 930 still had to be used. To improve airflow even further the entire roof structure was tilted to put the windshield at a better a
This is the Tubeframe car built for the 1980 DRM Championship by Jan Lundgardh (S), Josef Zierkelbach (D) and Porsche Engineer Eberhard Braun (D). to run in the under 2.0 L Class using one of the only two 1.4 L Turbo engines built by the factory in 1977 (The factory built Baby car won the 1977 Season final at Hockenheim using the other 1.4 L engine). The car then raced in the 1980-1981 German DRM Championship, the World Endurance Championship as well as at the 24H of Le Mans in 1981. A 3L Turbo engine was then installed for the 1982 season and the car was entered in further 4 rounds of the World Endurance Championship until retiring from Racing in 1984. Due to the tubeframe construction the car was very light (It showed only 817 Kg on the weithing balance at the 1981 Le Mans 24H scrutineering) and therefore very competitive. In the current ownership since 2004, the car has been completely frame up restored at no expense spared, altough the car still retains the original K3 Body panels fited in 1980. Restoration files and invoices (€ 600'000) are available. This car is very well known among Porsche Enthusiasts, the History meticulously documented and the chain of ownership absolutel
This fabulous Vaillent-sponsored Porsche 935 has a factory built (Dyno sheet to prove) 962 twin turbo, twin plug, flat fan that develops 806 horsepower, with torque to match. Built upon a 1976 Porsche Carrera 2.7 liter chassis by Ekkehard Zimmerman’s Design und Plastik Company in Cologne, Germany (he designed and built the bodywork of the 935K3), probably around 1985 (perhaps earlier), this DP935 was first of all driven by Jurgen Schorn and then by Jurgen Opperman. Both men used it in German 3-hour long distance races (Langstreckenrennen), mostly around the Nordschleife (the old 14 mile circuit at the Nurburgring) but sometimes at Hockenheim, and at Zolder in Belgium. The car notched up a great record, scoring fifteen overall victories, four second and three third places. Click on the link below to see the car in action with a lap around the Nordschleife by Jurgen Opperman: http://www.youtube.com/watch?v=MBSVZ3vyvKo After this, Opperman sold the 935 to Willy Rabl, an Austrian who specialized in the long distance “Bergrennen” (Hillclimbs) in Europe. Rabl was sponsored by Vaillent, and so the car was repainted in their colors and Rabl won two European Hillclimb Championships with it.