Before there was Group C, there was still sports car racing thunder. In the 1970s, between 1976 and 1982, there was Group 5, for production based sports cars on steroids. The most widely known, is the legendary Porsche 935, especially the K3 model. Here is one, in action, from Belgian-Motorsport on YouTube.
Engine: Boxer-6 / 2x KKK Turbo’s / 3163 cc / 193.02 cu-in
Power: 800 hp / 596 kw @ 8000 rpm
Gearbox: 4-speed manual
Weight: 980 kg / 2160 lbs
Top Speed: 350 km/h / 217 mph
Built from 1979-1981
Events: Spa Classic, Oldtimer GP, Monza Historic
Race series: CER 2, DRM revival
Tracks: Spa-Francorchamps, Nürburgring, Monza
Dates: 2019 may, august, september
car nr. 5: Henrik LINDBERG (DNK)
car nr. 58: Urs BECK (CHE)
In 1979 a 935 K3 was the overall winner of the 24h of Le Mans. A “normal” 935 came second and a 935 K2 came third overall. So it was an impressive car even back then.
[quote= Petrolicious]What are the differences between a K3 and a regular 935?
They’re much different: the engine has two turbos, the suspension is modified, it has bigger brakes and a reversed “upside-down” type gearbox in order to let the titanium axles work straight and lower the CG, and different bodywork and aerodynamics. In the end, the 935 K3s were basically a new 935 model made by Kremer to keep these cars up to date as Porsche stopped making them because they had so much power they bent the chassis! Oddly, Porsche featured K3s that were not factory-built for their official posters and press releases![/quote]
Filmed with Canon Legria HF G40 + DM-100 microphone