1970 Porsche 917 Explained
Summary
TLDRThe Porsche 917, a German sports prototype race car, achieved Porsche's first overall wins at the 24 Hours of Le Mans in 1970 and 1971. Powered by a type 912 flat-12 engine ranging from 4.5 to 5 liters, the 917/30 variant boasted a 0-62 mph in 2.3 seconds and a top speed of 240 mph. Designed by Hans Metzger, it featured a lightweight spaceframe chassis and an air-cooled engine combining two flat-6 engines. The 917 K models were used for shorter tracks, while the long tail bodywork was developed for high-speed circuits like Le Mans. The 917 also participated in the Can-Am series and European Interseries, with a turbocharged version reaching 1100 bhp.
Takeaways
- 🏎️ The Porsche 917 is a sports prototype race car developed by the German manufacturer Porsche.
- 🏁 The 917 achieved Porsche's first overall wins at the 24 Hours of LeMans in 1970 and 1971.
- 🚀 The 917/30 variant could accelerate from 0 to 62 mph in 2.3 seconds and had a top speed of up to 240 mph.
- 🔧 It featured a lightweight spaceframe chassis, weighing only 93 pounds, and was pressurized to detect structural flaws.
- 💡 Chief engineer Hans Metzger designed the car, which was powered by a 4.5-liter air-cooled engine.
- ⚙️ The engine was an innovative combination of two 2.25-liter flat-6 engines, later enlarged to 4.9 and 5 liters for more power.
- 🌪️ The 917 K models were used for shorter road courses, while the long tail bodywork was developed for high-speed tracks like LeMans.
- 🔄 After aerodynamic issues, the 917 L was improved, resulting in a stable car capable of speeds up to 246 mph.
- 🐷 There was a unique 'Pink Pig' 917/20, an aerodynamic research version, showcasing Porsche's experimental side.
- 🌐 The 917 also participated in the European Interseries and the Can-Am series, with a turbocharged version, the 917/30, producing 1100 bhp.
Q & A
What is the Porsche 917?
-The Porsche 917 is a sports prototype race car developed by the German manufacturer Porsche.
What significant achievement did the Porsche 917 accomplish in 1970 and 1971?
-The Porsche 917 gave Porsche its first overall wins at the 24 Hours of LeMans in 1970 and 1971.
What engine type was used in the Porsche 917?
-The Porsche 917 was powered by the type 912 flat 12 engine, which came in sizes of 4.5, 4.9, or 5 liters.
What was the 0 to 62 miles per hour acceleration time of the 917/30 cannon variant?
-The 917/30 cannon variant was capable of a 0 to 62 miles per hour time of 2.3 seconds.
Who was the chief engineer responsible for the design of the Porsche 917?
-The car was designed by chief engineer Hans Metzger.
What was unique about the chassis of the Porsche 917?
-The Porsche 917 was built around a very light spaceframe chassis that weighed only 93 pounds and was permanently pressurized with gas to detect cracks in the welded structure.
What was the original engine size and power output of the Porsche 917 in 1969?
-The original 4.5-liter engine in the Porsche 917 produced around 520 bhp in 1969.
How was the engine size and power output of the Porsche 917 increased for later models?
-The engine was enlarged from 4.5 liters to 4.9 liters making 600 bhp and to 5 liters producing a maximum of 630 bhp.
Which variant of the Porsche 917 was used for shorter road courses?
-The 917 K models were generally used for shorter road courses such as Sebring, Brands Hatch, Musa, and Spa.
What special bodywork was developed for the Porsche 917 for the LeMond race?
-For the LeMond race, the factory developed special long tail bodywork designed for minimum drag and thus the highest maximum speed.
What was the top speed achieved by the definitive 917 L in 1971?
-The definitive 917 L achieved a top speed of up to 240 miles per hour in 1971.
What other aerodynamic research versions of the Porsche 917 were developed?
-Other aerodynamic research versions included the pink pig aerodynamic research version 917/20, the turbocharged 917/10, and the 917/30km spiders.
Outlines
🏎️ Porsche 917: A Racing Legend
The Porsche 917 is a sports prototype race car developed by Porsche, achieving its first overall wins at the 24 Hours of Le Mans in 1970 and 1971. Powered by a type 912 flat-12 engine ranging from 4.5 to 5 liters, the 917/30 variant boasted a 0 to 62 mph time of 2.3 seconds, 0 to 124 mph in 5.3 seconds, and a top speed of up to 240 mph. The car's design, overseen by chief engineer Hans Metzger, featured a lightweight spaceframe chassis and a 4.5-liter air-cooled engine. The engine was later enlarged to 4.9 liters, producing 600 bhp, and to 5 liters, yielding 630 bhp. The 917 K models were used for shorter road courses, while the 917 L, with its long tail bodywork, was developed for high-speed tracks like Le Mans. The 917 also participated in the European Interseries and Can-Am series, with a turbocharged version, the 917/10, producing an astounding 1100 bhp.
🎵 The Sound of Speed
This paragraph is a brief interlude featuring music, likely used to create a dramatic or emotional effect in the video. It does not contain any spoken content or information about the Porsche 917 or any other topic.
Mindmap
Keywords
💡Porsche 917
💡24 Hours of LeMans
💡Type 912 Flat 12 Engine
💡0 to 62 miles per hour
💡Spaceframe Chassis
💡Hans Metzger
💡Aerodynamic Lift
💡Long Tail Bodywork
💡Can-Am Series
💡Turbocharged
💡European Interseries
Highlights
The Porsche 917 is a sports prototype race car developed by Porsche.
The 917 achieved Porsche's first overall wins at the 24 Hours of LeMans in 1970 and 1971.
Powered by a type 912 flat-12 engine with displacements of 4.5, 4.9, or 5 liters.
The 917/30 cannon variant could accelerate from 0 to 62 mph in 2.3 seconds.
It could reach 0 to 124 mph in 5.3 seconds with a top speed of up to 240 mph.
Designed by chief engineer Hans Metzger, featuring a light spaceframe chassis weighing only 93 pounds.
The chassis was pressurized with gas to detect cracks in the welded structure.
The 4.5-liter air-cooled engine was a combination of two 2.25-liter flat-6 engines.
The engine was enlarged to 4.9 liters, producing 600 bhp, and to 5 liters for 630 bhp.
The 917 K models were used for shorter road courses like Sebring, Brands Hatch, and Spa.
Porsche developed special long tail bodywork for high-speed circuits like LeMond.
The 917 L was initially uncontrollable due to aerodynamic lift at high speeds.
For 1970, an improved version of the 917 L was developed for better control.
In 1971, the definitive 917 L was developed, achieving stability at speeds up to 246 mph.
Joseffer raced an open-topped 917 PA spider in the 1971 Can-Am series.
There was also a pink pig aerodynamic research version, the 917/20.
The turbocharged 917/10 and 917/30 models were part of Porsche's racing legacy.
In 1973, a turbocharged version of the Porsche 917 developed 1100 bhp.
Transcripts
[Music]
the Porsche 917 is a sports prototype
race car developed by German
manufacturer Porsche the 917 gave
Porsche its first overall wins at the 24
Hours of LeMans in 1970 in 1971 powered
by the type 912 flat 12 engine of 4.5
4.9 or 5 liters the 917 / 30 cannon
variant was capable of a 0 to 62 miles
per hour time of 2.3 seconds 0 to 124
miles per hour in 5.3 seconds and a test
track top speed of up to 240 miles per
hour the car was designed by chief
engineer Hans Metzger and was built
around a very light spaceframe chassis
weighing only 93 pounds which was
permanently pressurized with gas to
detect cracks in the welded structure
power came from a new 4.5 liter
air-cooled engine designed by Metzger
which was a combination of two of
Porsches 2.25 liter flat 6 engines used
in previous race cars the original 4.5
liter engine which had produced around
520 bhp in 1969 had been enlarged to 4.9
leaders making 600 bhp to 5 liters and
produced a maximum of 630 bhp the 917 K
models were generally used for the
shorter road courses such as Sebring
Brands Hatch Musa and Spa the big prize
for the Porsche however was LeMond for a
French circus long high-speed straights
the factory developed special long tail
bodywork that was designed for minimum
drag and thus highest maximum speed on
the cars debut in 1969 the 917 L proved
to be nearly uncontrollable as
in fact they generated aerodynamic lift
at the highest speeds for 1970 an
improved version was raised by the
factory and for 1971 after very
significant development in the wind
tunnel
the definitive 917 L was raised by both
factory and JW these cars were so stable
that drivers could take off their hand
off the steering wheel at speeds which
reached 246 miles per hour in 1971
joseffer raced an open-topped 917 PA
spider which was naturally aspirated in
the 1971 can-am series there is also the
pink pig aerodynamic research version 9
17/20 in the turbocharged 9 17/10 and
917 / 30km spiders Porsche 917 s also
raced in the European inter series in
various configurations in 1973 can-am
series a turbocharged version Porsche
917 / xxx developed 1100 bhp
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