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Chevron B26
The Chevron B26 is a 2-liter Group 6 sports prototype race car, designed, developed and built by British manufacturer Chevron, in 1973. Over its racing career, spanning 14 years, it won a total of 17 race wins (including 17 additional class wins), achieved 43 podium finishes, and clinched 9 pole positions. It was powered by a naturally-aspirated Hart 420R four-cylinder engine The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorize ..., developing . References {{reflist Chevron racing cars Sports prototypes 24 Hours of Le Mans race cars Sports racing cars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group 6 (racing)
Group 6 was the official designation applied by the FIA to two motor racing classifications, the Prototype-Sports Car category from 1966 to 1971 and the Two-Seater Racing Cars class from 1976 to 1982. Group 6 Prototype-Sports Cars (1966 to 1971) The original Group 6 was introduced for the 1966 racing season, at the same time as a new Group 4 Sports Car category. Whilst Group 4 specified that competing cars must be one of at least fifty examples built, Group 6 had no minimum production requirement. Nor did it have a maximum engine capacity limit although there were weight, dimensional and other restrictions placed on the Group 6 cars.M.L Twite, The World’s Racing Cars, 4th Edition, 1970, Page 136 The Prototypes and Sports Cars categories each had their own international championships to fight for but many of the major international endurance races such as the 24 Hours of Le Mans would count as qualifying rounds for both championships. 1968 saw a three-litre engine capacity lim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hart 420 Engine
The Hart 420R and the Hart 420S are four-stroke, naturally aspirated, , four-cylinder engine, designed, developed and made by Hart Racing Engines, and tuned by Brian Hart, for Formula 2 and sports prototype racing applications, between 1975 and 1980. The 420R is based on the Cosworth FVA, while the 420S is based on the Cosworth BDG, with the design knowledge being taken and used on both. The Hart 420R F2 engine owes much to the Cosworth BDA series, being essentially an aluminium-block derivative using similar heads. Both the 420R and 420S were naturally-aspirated, 2-litre, 16-valve DOHC, fuel-injected, straight-four engines. Displacement is , and maximum power output is between at 9,500 rpm Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is a unit of rotational speed or rotational frequency for rotating machines. Standards ISO 80000-3:2019 defines a unit of rotation as the dimensionl ..., with the motor being failsafe to just ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sports Prototypes
A sports prototype, sometimes referred to as simply a prototype, is a type of race car that is used in the highest-level categories of sports car racing. These purpose-built racing cars, unlike street-legal and production-based racing cars, are not intended for consumer purchase or production beyond that required to compete and win races. Prototype racing cars have competed in sports car racing since before World War II, but became the top echelon of sports cars in the 1960s as they began to replace homologated sports cars. Current ACO regulations allow most sports car series to use two forms of cars: grand tourers (GT), based on street cars, and prototypes, which are allowed a great amount of flexibility within set rule parameters. In historic racing, they are often called "sports racing cars". Sometimes, they are incorrectly referred to as "Le Mans cars", whether they are competing in the Le Mans race or not. Types of sports prototypes Since the 1960s, various championships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevron Racing Cars
Chevron Cars Ltd. is an English manufacturer of racing cars, founded by Derek Bennett in 1965. Following Bennett's death in 1978, the firm has remained active in various guises. The original company's designs and name continue to be used to build replacement parts and continuation models of earlier Chevrons. In 2000, Chevron Racing Cars Ltd., founded by Vin Malkie acquired the trade mark Chevron Racing Cars Ltd and in addition to the company's other activities has designed and built new grand tourer racing cars under the Chevron name, as well as other continuation models of earlier Chevrons. History Derek Bennett Derek Bennett was born in 1933 in Manchester; he was brought up in Prestwich. He was a largely self-taught, intuitive engineer and a talented amateur racing driver. In his early years Bennett took a keen interest in model aircraft. He took an apprenticeship in mechanical and electrical engineering before becoming a mechanic, but he soon fell in with motor racing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sports Prototype
A sports prototype, sometimes referred to as simply a prototype, is a type of race car that is used in the highest-level categories of sports car racing. These purpose-built racing cars, unlike street-legal and production-based racing cars, are not intended for consumer purchase or production beyond that required to compete and win races. Prototype racing cars have competed in sports car racing since before World War II, but became the top echelon of sports cars in the 1960s as they began to replace homologated sports cars. Current ACO regulations allow most sports car series to use two forms of cars: grand tourers (GT), based on street cars, and prototypes, which are allowed a great amount of flexibility within set rule parameters. In historic racing, they are often called "sports racing cars". Sometimes, they are incorrectly referred to as "Le Mans cars", whether they are competing in the Le Mans race or not. Types of sports prototypes Since the 1960s, various championships ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevron B31
The Chevron B31 was a sports prototype racing car built by Chevron Cars Ltd in 1975, and initially used in the European 2-Litre Championship. The car was an evolution of the Chevron B26, and was initially fitted with a 2-litre Hart 420R straight-four engine producing . However, various other engines were used; the car also ran with engines such as the 3-litre Cosworth DFV V8, the 2-litre Cosworth FVD/Cosworth BDG straight-four engines, and the 2-litre BMW M12 straight-four, amongst others. Design The Chevron B31 was an evolution of the B26, and was designed for the European 2-Litre Championship by Chevron Cars Ltd's founder Derek Bennett in 1975; six cars were built. The B31 featured subtle changes, such as a slightly redesigned bodywork, but it featured the same basic aluminium monocoque chassis as its predecessor. The bodywork was made from fiberglass, and the B31 was designed to use the same Hart 420R engine as its predecessor had. The 420R was a naturally-aspirated 2-li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevron B23
The Chevron B23 is a Group 6 sports prototype race car, designed, developed and built by British manufacturer Chevron, in 1973. Over its racing career, spanning 12 years, it won a total of 12 races (plus 15 additional class wins), scored 41 podium finishes, and clinched 2 pole positions.https://www.racingsportscars.com/type/Chevron/B23.html It was powered by a naturally-aspirated Ford-Cosworth DFV The DFV is an internal combustion engine that was originally produced by Cosworth for Formula One motor racing. The name is an abbreviation of ''Double Four Valve'', the engine being a V8 development of the earlier four-cylinder FVA, which had fo ... Formula One engine, producing . References {{reflist Chevron racing cars Sports prototypes 24 Hours of Le Mans race cars Sports racing cars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manual Transmission
A manual transmission (MT), also known as manual gearbox, standard transmission (in Canada, the United Kingdom, and the United States), or stick shift (in the United States), is a multi-speed motor vehicle transmission (mechanics), transmission system, where gear changes require the driver to manually select the gears by operating a gear stick and clutch (which is usually a foot pedal for cars or a hand lever for motorcycles). Early automobiles used ''sliding-mesh'' manual transmissions with up to three forward gear ratios. Since the 1950s, ''constant-mesh'' manual transmissions have become increasingly commonplace and the number of forward ratios has increased to 5-speed and 6-speed manual transmissions for current vehicles. The alternative to a manual transmission is an automatic transmission; common types of automatic transmissions are the Automatic transmission#Hydraulic automatic transmissions, hydraulic automatic transmission (AT), and the continuously variable transmissio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hewland
Hewland is a British engineering company, founded in 1957 by Mike Hewland, which specialises in racing-car gearboxes. Hewland currently employ 130 people at their Maidenhead facility and have diversified into a variety of markets being particularly successful in electric vehicle transmission supply. Hewland are currently supplying into Formula 1, Formula E, DTM, LMP, RallyCross, Prototype and GT Sportscar. History Mike Hewland ran a small engineering business at Maidenhead in the UK with the speciality in gear cutting. In 1959, Bob Gibson-Jarvie, the Chief Mechanic of UDT Laystall racing team running Cooper F2 cars, sought help from Hewland as gearbox troubles were experienced. The result of this request came out as six successful gearboxes being designed and built in 1959, and Hewland was in the gearbox business. The first transaxle product, the Hewland Mk.I of 1960, was a minor modification of the Volkswagen Beetle 4 speed transaxle used upside-down with custom made differ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inline-four Engine
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the exceptions of the flat-four engines produced by Subaru and Porsche) and the layout is also very common in motorcycles and other machinery. Therefore the term "four-cylinder engine" is usually synonymous with straight-four engines. When a straight-four engine is installed at an inclined angle (instead of with the cylinders oriented vertically), it is sometimes called a slant-four. Between 2005 and 2008, the proportion of new vehicles sold in the United States with four-cylinder engines rose from 30% to 47%. By the 2020 model year, the share for light-duty vehicles had risen to 59%. Design A four-stroke straight-four engine always has a cylinder on its power stroke, unlike engines with fewer cylinders where there is no power stroke occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
