Mazda 757
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Mazda 757
The Mazda 757 is a prototype racing car built by Mazdaspeed for the 24 Hours of Le Mans running under the IMSA-spec GTP class. It replaced the previous lineage of Group C2 class cars which ended with the 737C and was the first chassis built entirely by Mazdaspeed and designed by Nigel Stroud. The 747 designation was skipped to avoid confusion with the second generation Mazda RX-7, which was developed under the codename P747. The 757 used a new 3-rotor '' 13G'' Wankel engine. Two 757s entered the 1986 24 Hours of Le Mans, but both failed to finish the race due to gearbox problems, marking the first time Mazdaspeed had failed to finish at Le Mans. In the All Japan Sports Prototype Championship season, Mazda was able to come home 3rd in the manufacturer's championship. For 1987, two 757s were again entered, with one finishing 7th overall while the other suffered engine failure. Along with a good result at the joint World Sportscar Championship and All Japan Sports Protot ...
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Mazda 757, LM Story, Le Mans
, commonly referred to as simply Mazda, is a Japanese multinational automotive manufacturer headquartered in Fuchū, Hiroshima, Japan. In 2015, Mazda produced 1.5 million vehicles for global sales, the majority of which (nearly one million) were produced in the company's Japanese plants, with the remainder coming from a variety of other plants worldwide. During this time, Mazda was the 15th-largest automaker in terms of production globally. History Creation Mazda began as the Toyo Cork Kogyo Co., Ltd, as a cork-making factory founded in Hiroshima, Japan, 30 January 1920. Toyo Cork Kogyo renamed itself to Toyo Kogyo Co., Ltd. in 1927. In the late 1920s the company had to be saved from bankruptcy by Hiroshima Saving Bank and other business leaders in Hiroshima. In 1931, Toyo Kogyo moved from manufacturing machine tools to vehicles with the introduction of the Mazda-Go auto rickshaw. The name ''Mazda'' came into existence with the production of the company's f ...
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Wankel Engine
The Wankel engine (, ) is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. It was invented by German engineer Felix Wankel, and designed by German engineer Hanns-Dieter Paschke. The Wankel engine's rotor, which creates the turning motion, is similar in shape to a Reuleaux triangle, with the sides having less curvature. The rotor rotates inside an oval-like epitrochoidal housing, around a central output shaft. The rotor spins in a hula-hoop fashion around the central output shaft, spinning the shaft via toothed gearing. Due to its inherent poor thermodynamics, the Wankel engine has a significantly worse thermal efficiency and worse exhaust gas behaviour when compared against the Otto engine or the Diesel engine, which is why the Wankel engine has seen limited use since its introduction in the 1960s. However, its advantages of compact design, smoothness, lower weight and less parts over the aforementioned reciproca ...
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Cars Powered By Wankel Engines
A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as the birth year of the car, when German inventor Carl Benz patented his Benz Patent-Motorwagen. Cars became widely available during the 20th century. One of the first cars affordable by the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the US, where they replaced animal-drawn carriages and carts. In Europe and other parts of the world, demand for automobiles did not increase until after World War II. The car is considered an essential part of the developed economy. Cars have controls for driving, parking, passenger comfort, and a variety of lights. Over the decades, additional features and controls have been added to vehicles, making them progressively more complex. These i ...
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IMSA GTP Cars
The International Motor Sports Association (IMSA) is a North American sports car racing sanctioning body based in Daytona Beach, Florida under the jurisdiction of the ACCUS arm of the FIA. It was started by John Bishop, a former executive director of SCCA (Sports Car Club of America), and his wife Peggy in 1969 with help from Bill France Sr. of NASCAR. Beginning in 2014, IMSA is the sanctioning body of the WeatherTech SportsCar Championship, the premier series resulting from the merger of Grand-Am Road Racing and the American Le Mans Series. IMSA is owned by NASCAR, as a division of the company. History John Bishop and SCCA John Bishop, a Sikorsky employee, first became involved in motorsport in the 1950s when he met Dave Allen, a Sports Car Club of America (SCCA) staff member. Allen offered Bishop a management position on the SCCA Contest Board, which Bishop quickly accepted. Bishop moved to Westport, Connecticut shortly thereafter. Bishop's duties consisted of defi ...
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Mazda Racing Cars
, commonly referred to as simply Mazda, is a Japanese Multinational corporation, multinational Automotive industry, automotive manufacturer headquartered in Fuchū, Hiroshima (town), Fuchū, Hiroshima Prefecture, Hiroshima, Japan. In 2015, Mazda produced 1.5 million vehicles for global sales, the majority of which (nearly one million) were produced in the company's Japanese plants, with the remainder coming from a variety of other plants worldwide. During this time, Mazda was the 15th-largest automaker in terms of production globally. History Creation Mazda began as the Toyo Cork Kogyo Co., Ltd, as a cork (plug), cork-making factory founded in Hiroshima, Japan, 30 January 1920. Toyo Cork Kogyo renamed itself to Toyo Kogyo Co., Ltd. in 1927. In the late 1920s the company had to be saved from bankruptcy by Hiroshima Saving Bank and other business leaders in Hiroshima. In 1931, Toyo Kogyo moved from manufacturing machine tools to vehicles with the introduction of t ...
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Mazda 767
300px, Mazda 767B Central Circuit, Hyōgo Prefecture The Mazda 767/767B are prototype racing cars that were built by Mazdaspeed for the 24 Hours of Le Mans running under the IMSA-spec GTP class. The 767 replaced the 757 in 1988, upgrading to a newer and larger 4-rotor '' 13J'' Wankel engine which produced nearly . Two 767s were entered at 1988 24 Hours of Le Mans, finishing 17th and 19th overall, however they finished behind a sole 757 which was able to finish 15th. In the All Japan Sports Prototype Championship, Mazda managed 4th in the constructors' championship. For 1989, Mazda upgraded the 767 into the 767B, and initially tested it in the IMSA 24 Hours of Daytona, where it was successful in finishing 5th overall. Later in the year, Mazda returned to Le Mans with two 767Bs as well as an older 767. The 767Bs were able to finish 7th and 9th overall, while the lone 767 was able to finish 12th. However, in JSPC, the results were not as promising, as Mazda finished a mere 5th ...
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1988 24 Hours Of Le Mans
The 1988 24 Hours of Le Mans was the 56th Grand Prix of Endurance, and took place on 11 and 12 June 1988. It was also the fifth round of the World Sports-Prototype Championship season. Race The Porsches were able to turn up the turbo boost in qualifying, thus were able to qualify in the top spots. Early in the race Jaguar proved to be faster and overtook all the Porsches (In the normal race configuration turbo boost) by the 2nd lap. After four years of trying with previous evolutions, Jaguar took the XJR-9 to victory against Porsche's works 962C in 1988. Apart from a lone Jaguar in fourth, Porsches filled the rest of the top ten. The Sauber-Mercedes team withdrew prior to the event following concerns over blowouts from their Michelin tyres. The race covered a distance of 5,332.97 km, the most distance covered in any of the Le Mans 24 hours races, except 1971 when the Martini Racing Team Porsche 917K covered 5,335.313 km in 397 laps. Those records would however be brok ...
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Fuji Speedway
is a motorsport race track standing in the foothills of Mount Fuji, in Oyama, Suntō District, Shizuoka Prefecture, Japan. It was built in the early 1960s. In the 1980s, Fuji Speedway was used for the FIA World Sportscar Championship and national racing. Originally managed by Mitsubishi Estate Co., Fuji Speedway was acquired by Toyota Motor Corporation in 2000. The circuit hosted the Formula One Japanese Grand Prix in 2007 after an absence of nearly 30 years, replacing the Suzuka Circuit owned by Honda. After Fuji Speedway hosted the 2008 race, the Japanese Grand Prix returned to Suzuka for races from 2009 onward. The Super GT Fuji 500 km race is held at the racetrack on Golden Week. Fuji Speedway has one of the longest straights in motorsport tracks, at in length. The circuit has an FIA Grade 1 license. History 1963–79: F1 launches in Japan Fuji Speedway Corporation was established in 1963 as Japan NASCAR Corporation. At first, the circuit was planned to ...
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World Sportscar Championship
The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992. The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and North America with dozens of gentleman drivers at the grid, to a professional racing series where the world's largest automakers spent millions of dollars per year. The official name of the series changed throughout the years, however it has generally been known as the World Sportscar Championship from its inception in 1953. The World Sportscar Championship was, with the Formula One World Championship, one of the two major world championships in circuit motor racing. In 2012 the World Sportscar Championship was revived and renamed as the World Endurance Championship. Races The most famous event was the 24 Hours of Le Mans which was the part of the championship in every season except of the 1956, 1975– 79 and 1989– 90 seasons. The ...
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1987 24 Hours Of Le Mans
The 1987 24 Hours of Le Mans was the 55th Grand Prix of Endurance, and took place on 13 and 14 June 1987. It was also the fifth round of the 1987 World Sports-Prototype Championship. Track alterations A chicane was installed in the middle of the Dunlop Curve, just prior to the Dunlop Bridge, in an attempt to slow speeds for sportscars as they went from the main straight to the Esses. The new chicane was also intended to slow motorcycles for races on the Bugatti Circuit. Pre race With the cancellation of the B Class, the race was the first in the history of Le Mans to lack any homologated class entries. The hiatus would last until 1993. Race Porsche 962C cars suffered from piston failure due to the wrong microchip fitted for fuel management, causing a lean mixture and burned pistons. The #17 car of Bell, Stuck, and Holbert escaped this fate with a new chip fitted, running largely uncontested to the finish. Official results Class winners in bold. Cars failing to complete 70 ...
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All Japan Sports Prototype Championship
The , abbreviated as JSPC, formed by the Japan Automobile Federation, was a domestic championship which took place in Japan for Group C and IMSA GTP prototype cars and also featured cars that were eligible for touring car racing in its earlier years. Class A and Class B for production cars which were defined by the FIA (Group A and Group B) and the lead category, Class C would be for cars that are similar to IMSA's Camel Lights and the WEC's C2, whereas Class D was for C1/GTP cars. The series began in 1983 as All Japan Endurance Championship, an endurance championship with an intention to replace its domestic touring car championship and started out as a three-round event, including one which as it was part of the WEC round which meant drivers competing in the national series was counted into the world championship. In 1987, the championship would be broken up into two as production cars from the lower categories would be moved into the All Japan Touring Car Championship (no ...
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1986 24 Hours Of Le Mans
The 1986 24 Hours of Le Mans was the 54th Grand Prix of Endurance as well as the third round of the 1986 World Sports-Prototype Championship. It took place on 31 May and 1 June 1986. Pre-race Due to construction of a new roundabout at the Mulsanne corner, a new portion of track had to be built in order to avoid the roundabout. This created a right hand kink prior to the new Mulsanne turn. Race For 1986, the new works 962C of Hans-Joachim Stuck, Derek Bell and Al Holbert was able to overcome the two-time defending winners at Joest Racing. The race itself was marred by the death of Jo Gartner in a crash on the Mulsanne Straight early on Sunday morning while running in 8th place. The sole remaining Kremer Racing Porsche retired soon after the accident. The Joest/Ludwig car suffered from engine bearing failure following the extended pace car laps. Official results Class winners in bold. Cars failing to complete 70% of the winner's distance marked as Not Classified (NC). † ...
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