Porsche offered Kremer Racing a choice of two versions of the Type 912 engine. The first was the 4.5-litre unit of the flat-12 that had powered the 917 early in its career and the second was the larger, 5-litre engine fitted to the later developments.

Dubbed the 917-K81, the new car featured a Kremer-built aluminium spaceframe chassis similar to that of the original, albeit with additional triangulation and thicker gauge tubing to improve torsional stiffness. In addition, it featured brakes, suspension components and other items of running gear developed on the all-conquering Can-Am programme.

Dubbed the 917-K81, the new car featured a Kremer-built aluminium spaceframe chassis similar to that of the original, albeit with additional triangulation and thicker gauge tubing to improve torsional stiffness. In addition, it featured brakes, suspension components and other items of running gear developed on the all-conquering Can-Am programme.

Last 917 built

Dubbed the 917-K81, the new car featured a Kremer-built aluminium spaceframe chassis similar to that of the original, albeit with additional triangulation and thicker gauge tubing to improve torsional stiffness.

The car, dubbed the Porsche 917 K81, was heralded as one of the favorites along with the works Porsche 936s and the Rondeau M379s. With its “K” this time referring to Kremer and not to Kurzheck (short tail), the 917 was as much an attraction for racing enthusiasts when it arrived at Le Mans as it was a curiosity for the press of the time.

The 917 pictured here is the last Porsche-sanctioned 917 built, constructed by the Kremer team that won Le Mans in 1979. A rule change for the 1981 season led to Kremer building a custom aluminum frame for the 917, with Porsche providing two Type 912 engines, a Type 920 gearbox, and technical support.

Following the two 1981 outings at Le Mans and Brands Hatch, the unique Porsche 917 K/81 was retired to the Kremer Racing showroom. It was retained by the Kremer Brothers through to 1986 when it was tested by a German magazine and compared to a brand new 962C.

2024年4月9日 · Porsche supplied the rear mid-mounted, fuel-injected 5.0-liter flat-twelve engine; as tuned by Kremer, the motor was originally capable of 570 hp, but a rebuild in 2019 tested out at something north of that. This monster of an engine is mated to a five-speed Type 920 transaxle.

2024年3月25日 · Cologne-based Kremer Racing built the car with Porsche’s full sanctioning and factory support. That support included chassis schematics and a pair of Type 912 flat-12 engines developed for the...