1971 24 Hours of Le Mans

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1971 24 Hours of Le Mans
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The 1971 24 Hours of Le Mans was the 39th Grand Prix of Endurance, and took place on June 12 and 13, 1971. It was the ninth round of the World Sportscar Championship.

1 Pre-race
2 Race
3 Official Results
- 3.1 Not Classified
- 3.2 Did Not Finish
4 Statistics
5 Trophy Winners

[edit] Pre-race

At the end of the 1970 season, Ferrari had entered a new version of the 512 in some races, the 512 M (Modificata). The 512 M had a new bodywork built on the same aerodynamics doctrine than the Porsche 917K. At the end of 1970, the 512 M was faster than the 917s on some tracks.

During the 1971 season, the FIA decided to ban the "loop hole" Sport category for 1972, so the big 917s and 512s would have to retire at the end of a year which they would surely dominate again.

Ferrari decided to give up any official effort with the 512 in order to prepare the 1972 season a new prototype, the 312PB was presented and engaged by the factory in several races. But many 512s were still raced by private teams and most of them converted to M specification. Being cheaper than the 917 K, the 512 M appeared as a bargain for customers at the end of 1970.

Roger Penske bought a used 512 M chassis that was totally dismantled and rebuilt. The car was specially tuned for long races receiving many unique features, among them were a large rear wing and an aviation inspired quick refueling system. The engine was tuned by Can-Am V8 specialist Traco; this engine was probably able to deliver more than 600hp (450kW). As of today it's impossible to know to what extent Penske's initiative was backed by Ferrari works. This 512 M, painted in a blue and yellow livery, was sponsored by Sunoco and the Californian Ferrari dealer Kirk F. White. This car made the pole position for the 24 Hours of Daytona and finished second despite an accident. For the 12 Hours of Sebring the "Sunoco" won the pole, but finished the race in sixth position after making contact with Pedro Rodríguez's 917. Despite this misfortune. the car had proved to be a serious opponent for the 917. Not only this car was the fastest on track in Daytona and Sebring but it was also the car that had the shortest refueling time.

The presence of the 512 M "Sunoco" forced Porsche to pursue his effort of research and development on the 917: The 917 K tail was modified, and the 917 LH aerodynamics received further improvements. New magnesium chassis were developed. An entirely new car, the 917/20 was built as test-bed for future Can-Am parts and aerodynamic "low-drag" concepts. The chunky car was painted in pink for the race with names of pieces of meat written across it, earning it the nickname "Pink Pig".

A modified Ferrari 512 featuring a narrowed cockpit (built around a Porsche 917 windshield) was entered by Scuderia Filipinetti, for Mike Parkes and Henri Pescarolo. The car was christened 512 F.

Matra entered only one 660 for Chris Amon and Jean-Pierre Beltoise.

The Ford-Cosworth DFV made its Le Mans debut in Guy Ligier's new JS-3. The engine was limited to 8800 rpm, allowing around 400hp (300kW).

[edit] Race

The "Sunoco" Ferrari was unable to break the 200 mph (320 km/h) barrier on the straight, while the 917 LH were lightning quick at speeds of over 240 mph (380 km/h). Mark Donohue qualified fourth anyway, which was obviously the result of an aerodynamic configuration that favored downforce over drag, which helped in the twistier sections.

Pedro Rodriguez and Jackie Oliver's 917 lead the first hours. At 7:00 p.m. the Sunoco was third. At 8:16 p.m., Donohue pitted the Sunoco Ferrari early. The Traco-tuned engine died. At dawn the Matra was in an amazing second position. But at 9:40 a.m., Amon stopped in the long straight and stepped out of the Matra roadster. He had run out of fuel due tom a faulty fuel-metering, and the pits were too far away to push the car.

Despite the extremely high speeds of the long tail versions (Vic Elford's silver Martini car was clocked at 386 km/h or 239.8 mph), the 1971 Le Mans race was again won by a short tail car but with magnesium chassis, the white No. 22 Martini of Helmut Marko and Gijs van Lennep.

[edit] Official Results

Pos	Class	No	Team	Drivers	Chassis	Engine	Laps
1	S 5.0	22	Martini Racing Team	Dr. Helmut Marko Gijs van Lennep	Porsche 917K	Porsche 4.9L Flat-12	397
2	S 5.0	19	John Wyer Automotive Engineering Ltd.	Richard Attwood Herbert Müller	Porsche 917K	Porsche 4.9L Flat-12	395
3	S 5.0	12	North American Racing Team (NART)	Sam Posey Tony Adamowicz	Ferrari 512M	Ferrari 5.0L V12	366
4	S 5.0	16	David Piper Autorace	Chris Craft David Weir	Ferrari 512M	Ferrari 5.0L V12	355
5	S 5.0	58	North American Racing Team (NART)	Bob Grossman Luigi Chinetti Jr.	Ferrari 365 GTB/4	Ferrari 4.4L V12	314
6	GT +2.0	63	ASA Cachia Bundi	Raymond Touroul André Anselme	Porsche 911S	Porsche 2.4L Flat-6	306
7	P 2.0	49	André Wicky Racing Team	Walter Brun Peter Mattli	Porsche 907	Porsche 2.0L Flat-6	306
8	GT +2.0	38	René Mazzia	René Mazzia Jürgen Barth	Porsche 911EC	Porsche 2.4L Flat-6	303
9	GT +2.0	42	Jean Mesange	Jean Mesange "Gedehem"	Porsche 911S	Porsche 2.2L Flat-6	298
10	GT +2.0	26	Nicolas Koob	Erwin Kremer Nicolas Koob Günther Huber	Porsche 911S	Porsche 2.4L Flat-6	292
11	GT +2.0	39	A.G.A.C.I.	Guy Verrier Gerard Foucault	Porsche 911S	Porsche 2.2L Flat-6	290
12	GT +2.0	44	The Paul Watson Race Organisation	Paul Vestey Richard Bond	Porsche 911S	Porsche 2.2L Flat-6	286
13	GT +2.0	36	Ecurie Jean Sage	Björn Waldegård Bernard Cheneviére	Porsche 911S	Porsche 2.4L Flat-6	263

[edit] Not Classified

Pos	Class	No	Team	Drivers	Chassis	Engine	Laps
14	P 3.0	24	Automobiles Ligier	Guy Ligier Patrick Depailler	Ligier JS3	Ford Cosworth DFV 3.0L V8	270

[edit] Did Not Finish

Pos	Class	No	Team	Drivers	Chassis	Engine
15	GT +2.0	35	Pierre Greub	Sylvain Garant Pierre Greub	Porsche 911S	Porsche 2.4L Flat-6
16	S 5.0	57	Zitro Racing Team / Dominique Martin	Dominique Martin Gérard Pillon	Porsche 917K	Porsche 4.5L Flat-12
17	P 3.0	29	André Wicky Racing Team	André Wicky Max Cohen-Olivar	Porsche 908/2	Porsche 3.0L Flat-8
18	S 5.0	17	John Wyer Automotive Engineering Ltd.	Jo Siffert Derek Bell	Porsche 917K	Porsche 4.9L Flat-12
19	P 3.0	32	Equipe Matra-Simca	Chris Amon Jean-Pierre Beltoise	Matra-Simca MS660	Matra 3.0L V12
20	S 5.0	9	Ecurie Francorchamps	Hughes de Fierlandt Alain de Cadenet	Ferrari 512M	Ferrari 5.0L V12
21	S 5.0	6	Scuderia Filipinetti Scuderia Piccho Rosso	Corrado Manfredini Giancarlo Gagliardi	Ferrari 512M	Ferrari 5.0L V12
22	GT 2.0	47	André Wicky Racing Team	Jean-Jacques Cochet Jean Selz	Porsche 911S	Porsche 2.0L Flat-6
23	GT +2.0	1	Ecurie Léopard	Jean-Claude Aubriet Jean-Pierre Rouget	Chevrolet Corvette Stingray	Chevrolet 7.0L V8
24	P 3.0	30	Louis Cosson	Louis Cosson Helmut Leuze	Porsche 908/2	Porsche 3.0L Flat-8
25	GT 2.0	69	Autohaus Max Moritz GmbH	Gerd F. Quist Dietrich Krum	Porsche 914/6 GT	Porsche 2.0L Flat-6
26	GT +2.0	2	Greder Racing	Marie-Claude Charmasson Henri Greder	Chevrolet Corvette Stingray	Chevrolet 7.0L V8
27	S 5.0	18	John Wyer Automotive Engineering Ltd.	Pedro Rodriguez Jackie Oliver	Porsche 917L	Porsche 4.9L Flat-12
28	S 5.0	15	Escuderia Montjuich	José Juncadella Nino Vaccarella	Ferrari 512M	Ferrari 5.0L V12
29	P 3.0	28	Auguste Veuillet / Etablissement Sonauto	Claude Ballot-Léna Guy Chasseuil	Porsche 908/2	Porsche 3.0L Flat-8
30	S 5.0	7	Scuderia Filipinetti	Mike Parkes Henri Pescarolo	Ferrari 512F	Ferrari 5.0L V12
31	GT +2.0	65	Jacques Dechaumel	Jacques Dechaumel Jean-Claude Parot	Porsche 911S	Porsche 2.3L Flat-6
32	S 5.0	23	Martini Racing Team	Reinhold Joest Willi Kauhsen	Porsche 917/20 "Pink Pig"	Porsche 4.9L Flat-12
33	S 5.0	21	Martini Racing Team	Vic Elford Gerard Larrousse	Porsche 917L	Porsche 4.9L Flat-12
34	GT +2.0	33	Rey Racing	Jean-Pierre Cassegrain Jacques Rey	Porsche 911S	Porsche 2.4L Flat-6
35	GT 2.0	46	Ecurie Porsche Club Romand	Paul Keller Jean Sage	Porsche 914/6 GT	Porsche 2.0L Flat-6
36	GT +2.0	34	Richie Ginther Racing Inc.	Alain Johnson Elliot Forbes-Robinson	Porsche 911S	Porsche 2.4L Flat-6
37	GT +2.0	37	Pierre Mauroy	Pierre Mauroy Jean-Claude Lagniez	Porsche 911S	Porsche 2.4L Flat-6
38	GT +2.0	40	Jean Egreteaud	Jean Egreteaud Jean-Marie Jacquemin	Porsche 911S	Porsche 2.2L Flat-6
39	GT +2.0	41	Jean-Pierre Gaban	Jean-Pierre Gaban Willy Braillard	Porsche 911S	Porsche 2.2L Flat-6
40	P 2.0	50	Camel Filters Team Huron	Guy Edwards Roger Enever	Lola T212	Ford Cosworth FVC 1.8L I4
41	S 5.0	11	Roger Penske / Kirk F. White	Mark Donohue David Hobbs	Ferrari 512M/P	Ferrari 5.0L V12
42	S 5.0	10	Gelo Racing Team	Georg Loos Franz Pesch	Ferrari 512M	Ferrari 5.0L V12
43	P 3.0	60	Claude Haldi	Claude Haldi Hans-Dieter Weigel	Porsche 908/2	Porsche 3.0L Flat-8
44	S 5.0	14	North American Racing Team (NART)	Masten Gregory George Eaton	Ferrari 512S Spyder	Ferrari 5.0L V12
45	GT +2.0	66	Rey Racing	Jean-Claude Guérie Claude Mathurin	Porsche 911S	Porsche 2.4L Flat-6
46	GT +2.0	48	Jean-Pierre Hanrioud	Jean-Pierre Hanrioud Mario Ilotte	Porsche 911S	Porsche 2.2L Flat-6
47	GT +2.0	43	Francois Migault	Jean-Pierre Bodin Gilbert Courthiade	Porsche 911S	Porsche 2.2L Flat-6
48	P 3.0	27	Christian Poirot	Christian Poirot Jean-Claude Andruet	Porsche 910	Porsche 3.0L Flat-8
49	S 5.0	5	Racing Team VDS	Teddy Pilette Gustave Gosselin	Lola T70 Mk.IIIB	Chevrolet 5.0L V8