{"id":243585,"date":"2016-04-25T14:19:28","date_gmt":"2016-04-25T14:19:28","guid":{"rendered":"http:\/\/blog.supercars.net\/blog\/?p=243585"},"modified":"2024-12-27T12:58:11","modified_gmt":"2024-12-27T12:58:11","slug":"1973-porsche-91730-spyder","status":"publish","type":"post","link":"https:\/\/www.supercars.net\/blog\/1973-porsche-91730-spyder\/","title":{"rendered":"1973 Porsche 917\/30 Spyder"},"content":{"rendered":"

1973 Porsche 917\/30 Spyder<\/h1>\n
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Rule changes for the World Championship of Makes eliminated the stunning Porsche 917 during the early 1970s allowing the factory to develop the car for the open-top Canadian-American (CanAm) Championship in North America. Teams from McLaren, Lola and Chaparral were attracted to the 200 mile Sprint races of the formula and the rule book permitted almost anything, including free engine displacement and the use of turbochargers. Porsche used its new-found skills with forced induction to attach two exhaust-driven turbochargers to the flat-twelve engine of the 917. The result had a displacement of 5.4 litres and produced at least 1,100 bhp, making it one of the most powerful racing cars ever built. <\/span><\/p>\n

The 917\/30 went on to dominate in the 1973 CanAm with the top four places in the final points being taken back to Stuttgart and Porsche factory driver, Mark Donohue, setting a closed circuit record of 222 mph (355.85km\/h) around the Talladega Oval, Alabama. A time that still ranks as one of the fastest race laps ever.<\/p>\n

\"1973_Porsche_91730Spyder1\"<\/a><\/p>\n

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In Detail<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/tr>\n
type<\/td>\nRacing Car<\/td>\n<\/tr>\n
built at<\/td>\nGermany<\/td>\n<\/tr>\n
production<\/td>\n6<\/td>\n<\/tr>\n
engine<\/td>\nAir Cooled, Magnesium\/Aluminum Alloy Flat-12<\/td>\n<\/tr>\n
position<\/td>\nMid Longitudinal<\/td>\n<\/tr>\n
aspiration<\/td>\nTwin Eberspacher Turbos<\/td>\n<\/tr>\n
ignition<\/td>\nTwin Spark, Dual 12V Distributors<\/td>\n<\/tr>\n
block material<\/td>\nRZ5 Magnesium Alloy w\/Chromal Cylinders<\/td>\n<\/tr>\n
valvetrain<\/td>\nGear Driven DOHC, 2 Valves per Cyl<\/td>\n<\/tr>\n
fuel feed<\/td>\nIndirect, Mechanical Bosch Fuel Injection<\/td>\n<\/tr>\n
displacement<\/td>\n5374 cc \/ 327.9 in\u00b3<\/td>\n<\/tr>\n
bore<\/td>\n90 mm \/ 3.54 in<\/td>\n<\/tr>\n
stroke<\/td>\n70.4 mm \/ 2.77 in<\/td>\n<\/tr>\n
compression<\/td>\n6.5:1<\/td>\n<\/tr>\n
power<\/td>\n809.1 kw \/ 1085 bhp @ 7800 rpm<\/td>\n<\/tr>\n
specific output<\/td>\n201.9 bhp per litre<\/td>\n<\/tr>\n
bhp\/weight<\/td>\n1356.25 bhp per tonne<\/td>\n<\/tr>\n
torque<\/td>\n1098.2 nm \/ 810 ft lbs @ 6400 rpm<\/td>\n<\/tr>\n
body \/ frame<\/td>\nBody over Tubular Frame<\/td>\n<\/tr>\n
driven wheels<\/td>\nRWD w\/LSD<\/td>\n<\/tr>\n
front brakes<\/td>\nVented Discs<\/td>\n<\/tr>\n
rear brakes<\/td>\nVented Discs<\/td>\n<\/tr>\n
steering<\/td>\nRack & Pinion<\/td>\n<\/tr>\n
f suspension<\/td>\nDouble Wishbones<\/td>\n<\/tr>\n
r suspension<\/td>\nDouble Wishbones<\/td>\n<\/tr>\n
curb weight<\/td>\n800 kg \/ 1764 lbs<\/td>\n<\/tr>\n
wheelbase<\/td>\n2500 mm \/ 98.4 in<\/td>\n<\/tr>\n
front track<\/td>\n1670 mm \/ 65.7 in<\/td>\n<\/tr>\n
rear track<\/td>\n1654 mm \/ 65.1 in<\/td>\n<\/tr>\n
length<\/td>\n4562 mm \/ 179.6 in<\/td>\n<\/tr>\n
width<\/td>\n2085 mm \/ 82.1 in<\/td>\n<\/tr>\n
height<\/td>\n1080 mm \/ 42.5 in<\/td>\n<\/tr>\n
transmission<\/td>\nType 920 Four-Speed Manual<\/td>\n<\/tr>\n
top speed<\/td>\n~386.2 kph \/ 240 mph<\/td>\n<\/tr>\n
0 – 60 mph<\/td>\n~2.1 seconds<\/td>\n<\/tr>\n
fuel capacity<\/td>\n400 litres or 105.60 gal.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Auction Sales History<\/h4>\n

\"1973<\/a><\/p>\n

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1973 Porsche 917\/30 Can-Am Spyder 917\/30-005<\/a> – did not sell for \u20ac2,000,000<\/b> One of the most dominant Porsche racing cars of all time. Outrageously powerful turbocharged flat-12 engine. The last of four 917\/30 chassis completed by the factory. Built at Weissach; a genuine factory-built 917\/30. Featured in Motor Trend magazine and Automobile Quarterly. Documented by J\u00fcrgen Barth.\u00a0Auction Source: <\/b>2014 Paris by RM Auctions<\/a><\/p>\n

\"1973<\/a><\/p>\n<\/div>\n<\/div>\n

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1973 Porsche 917\/30 Can-Am Spyder 917\/30-004<\/a>. <\/b>The Most Powerful Road-Racing Car Ever Built.A n Undisputed Masterpiece of Automotive Engineering. One of Only Six Examples Built. Sold New to Australian Porsche Importer Alan Hamilton. Meticulously Restored in Penske Racing\u2019s 1973 Sunoco Livery. Rennsport Reunion, AvD Oldtimer Grand Prix and Monterey Historics Participant. Featured Prominently in Pete Lyons\u2019 Can-Am Cars in Detail. Eligible for Leading Historic Races and Porsche Gatherings. The Ultimate Evolution of the Porsche 917.\u00a0Auction Source: <\/b>The Amelia Island Auction 2012 by Gooding & Company<\/p>\n<\/div>\n

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1973 Porsche 917\/30 Spyder Video<\/h3>\n