1970 Porsche 917K

0
1

The Porsche 917 is a racecar that gave Porsche its first overall wins at the 24 Hours of Le Mans in 1970 and 1971. Powered by the Type 912 flat-12 engine of 4.5, 4.9, or 5 litres, the 917/30 variant was capable of a 0-62 mph (100 km/h) time of 2.3 seconds, 0–124 mph (200 km/h) in 5.3 seconds, and a top speed of over 240 mph (390 km/h).

There are at least nine variants of the 917. The original version had a medium-long tail with flippers, but had considerable handling problems at high speed because of poor bodywork aerodynamics. The Weyer-Gulf team then experimented with a shorter tail, and solved the aerodynamic and handling problems at testing sessions at the Österreichring, at the expense of some top speed. Porsche adopted these changes into the 917K, which dominated in the 1970 and 1971 World Sportscar Championships.

In 1971, a variant of the 917K appeared with an altered tail and shark fins, which together reduced drag and maintained down force. These versions produced around 620 bhp. There were also streamlined versions for Le Mans (1970 917L and 1971 917LH) that were 20 mph faster in a straight line. In 1971 Jo Siffert raced an open-top 917PA Spyder (normally aspirated) in the 1971 CanAm series. There is also the "Pink Pig" aerodynamic research version (917/20), and the turbocharged 917/10 and 917/30 CanAm Spyders. Porsche 917s also raced in the European Interseries in various configurations. In the 1973 Can-Am series, the turbocharged version Porsche 917/30 developed 1,100 bhp (820 kW).

Source: Wikipedia (original)

TECHNICAL SPECIFICATIONS
Engine: 4.5L V12
Weight: 800 kg / 1,763 lbs
Power: 432 kW / 580 hp / 587 PS
0-100 kph: 2.3 seconds
Torque: 562 Nm / 414 lb-ft
Top Speed: 340 kph / 211 mph

VIDEO

1973 Porsche 917/30

The 917/30 was the most powerful sports car racer ever built and raced. The 5.374-litre 12 cylinder (90.0 x...

1976 Porsche 935

The Porsche 935 was a racing car made by German carmaker Porsche, introduced in 1976. As the factory racing...

1977 Porsche 934 Turbo RSR

The Porsche 934 was a racing version of the Porsche 911 Turbo, prepared to FIA Group 4 rules, similar to th...

1977 Porsche 936/77 Spyder

The Porsche 936 was a racing car introduced in 1976 by Porsche as a delayed successor to the 917, a five li...

1978 Porsche 935/78 Moby Dick

For 1978, a third and final version of the 935 was developed, the 935/78, intended only for Le Mans. At thi...

1979 Porsche 935 K3

As Porsche hesitated to sell their Evolution models, some teams developed their own ideas, especially Kreme...

1981 Porsche 917 K-81

In 1981, it appeared that new Le Mans regulations would allow a 917 to race again. The Kremer Racing team e...

2006 Porsche LMP2 RS Spyder

The RS Spyder (Type 9R6) is a racing car designed by Porsche to compete in Le Mans Prototype Class 2 (LMP2)...

2008 Porsche RS Spyder

Rule changes increased the RS Spyder's weight to 825 kg and Porsche introduce a new direct injection engine...

2014 Porsche 919 Hybrid

Porsche is returning to the top category of the famous endurance race classic at Le Mans and the World Endu...

2016 Porsche 919 Hybrid

World debut of the new 919 Hybrid: Two days before the official Prologue for the FIA World Endurance Champi...

2017 Porsche 919 Hybrid

Porsche have unveiled their 2017 challenger for the World Endurance Championship, in the effort to win thei...

2018 Porsche 919 Hybrid Evo

Following Porsche's exit from the WEC at the end of 2017, the company has shown-off what their 919 Hybrid r...