{"id":506602,"date":"2023-07-30T21:05:25","date_gmt":"2023-07-31T04:05:25","guid":{"rendered":"https:\/\/sportscardigest.com\/?p=506602"},"modified":"2024-12-08T14:28:08","modified_gmt":"2024-12-08T14:28:08","slug":"car-of-the-day-1972-porsche-lm-917-10-spyder","status":"publish","type":"post","link":"https:\/\/www.supercars.net\/blog\/car-of-the-day-1972-porsche-lm-917-10-spyder\/","title":{"rendered":"Car Of The Day: 1972 Porsche L&M 917\/10 Spyder"},"content":{"rendered":"

After claiming two Le Mans victories with the iconic 917 Kurzheck, Porsche’s Weissach engineers converted it into a Group 7 contender by 1973, boasting over 1000 bhp. The result was the L&M Porsche+Audi 917\/10, driven by George Follmer and backed by Penske, which triumphed in the 1972 Can-Am Championship, outshining the usually dominant McLaren team.<\/p>\n

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The 917\/10’s primary goal was to promote Porsche+Audi dealerships in North America through race wins. Porsche’s initial attempts in 1969 with the 917PAs saw limited success, leading to the development of purpose-built versions like the 917\/10 and turbocharged 917\/30.<\/p>\n

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Directed by Hans Mezger and Helmut Flegl, the skilled Weissach team designed the 917\/10 for the 1971 Can-Am season. It had a wider body and integrated rear wing, perfect for sprint track races. Mark Donohue described the 1972 configuration as having “the meanest, wildest, ugliest race car nose in the entire world.”<\/p>\n

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To handle the power of American V8s in McLarens, Porsche introduced turbocharging for their 12-cylinder engines in 1970. Engineer Valentin Sch\u00e4ffer played a crucial role in fitting the 917\/10 with two Ebersp\u00e4cher Turbos and a simple intake-to-exhaust wastegate system.<\/p>\n

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 <\/p>\n

For 1972, Porsche teamed up with Penske and Mark Donohue, who had excelled with a Ferrari 512 in 1971. Porsche withdrew from the World Sportscar Championship to focus on Can-Am, and the collaboration with Penske was a success, leading to the 1972 championship victory.<\/p>\n

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With Mark Donohue’s guidance, the Penske Porsches underwent significant revisions, producing a reliable 800 bhp through improved intake, titanium valves, and enhanced cooling. Throttle response was also enhanced by recalibrated fuel injection and intake manifold relief valves.<\/p>\n

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

 <\/p>\n

In 1973, the 917\/10’s 5.4-liter engine reached 1100 bhp at 7800 rpm. The Penske outfit was sold to Rinzler Motorracing Royal Crown, winning the first two races. Subsequently, Mark Donohue’s new Porsche 917\/30 dominated the season, securing the overall championship.<\/p>\n

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 <\/p>\n

Photo Source: Mecum Auctions<\/a><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

After claiming two Le Mans victories with the iconic 917 Kurzheck, Porsche’s Weissach engineers converted it into a Group 7 contender by 1973, boasting over 1000 bhp. The result was the L&M Porsche+Audi 917\/10, driven by George Follmer and backed by Penske, which triumphed in the 1972 Can-Am Championship, outshining the usually dominant McLaren team.   The 917\/10’s primary goal was to promote Porsche+Audi dealerships in North America through race wins. Porsche’s initial attempts in 1969 with the 917PAs saw […]<\/p>\n","protected":false},"author":10,"featured_media":828538,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9494,16906],"tags":[9495,89,584,3799],"class_list":["post-506602","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car-of-the-day","category-porsche","tag-car-of-the-day","tag-porsche","tag-porsche-917","tag-porsche-race-cars"],"yoast_head":"\nCar Of The Day: 1972 Porsche L&M 917\/10 Spyder<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.supercars.net\/blog\/car-of-the-day-1972-porsche-lm-917-10-spyder\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Car Of The Day: 1972 Porsche L&M 917\/10 Spyder\" \/>\n<meta property=\"og:description\" content=\"After claiming two Le Mans victories with the iconic 917 Kurzheck, Porsche’s Weissach engineers converted it into a Group 7 contender by 1973, boasting over 1000 bhp. 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