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Honda RA300E Honda RA302E | |
---|---|
Overview | |
Manufacturer | Honda |
Production | 1965-1966 |
Layout | |
Configuration | Inline-4 |
Displacement | 993–996 cc (60.6–60.8 cu in) |
Cylinder bore | 72–78 mm (2.8–3.1 in) |
Piston stroke | 52–61.2 mm (2.0–2.4 in) |
Valvetrain | 4-valve valves per cylinder, hydraulic valve lifters, chain-driven double overhead camshaft (DOHC) [1] |
Combustion | |
Fuel system | Fuel injection |
Fuel type | Gasoline |
Cooling system | Water-cooled |
Output | |
Power output | 135–150 hp (101–112 kW) |
Dimensions | |
Dry weight | 145 kg (320 lb) |
The Honda RA300E and Honda RA302E are 1 litre (61 cu in) four-stroke, four-cylinder, naturally-aspirated, racing engines, designed, developed and built by Honda, for Formula Two racing, in 1965. [2]
In 1963 Honda were seeking to build on their success in motorcycle racing by entering four-wheeled motorsport. Representatives of the company contacted journalist Jabby Crombac, who later mentioned it to Jack Brabham. Brabham met with Honda's Yoshio Nakamura and agreed a deal to run Honda engines in Formula Two. [3]
The first engines were delivered for the start of the 1965 Formula Two season. In this original form they produced 135 bhp at 10,000 rpm. One of the works' Brabham BT16 chassis was fitted to take the engine and would be driven by Brabham himself. The engine was not a success. Brabham regularly qualified near the back of the grid and retired three times out of four races. The engines went back to Honda for revision and Brabham continued with a Cosworth SCA in the interim. New engines were supplied for the last two races of the season. At the Oulton Park International Gold Cup, Brabham qualified eighth, but retired on the first lap with a broken clutch. However, at the Albi Grand Prix he qualified on pole, set fastest lap and finished just 0.6 seconds behind Jim Clark's dominant Lotus 35-Cosworth. [4]
In 1966, in a new Brabham BT18 chassis, Brabham and team mate Denny Hulme were practically unbeatable with the revised engines, now producing 150 bhp at 11,000 rpm. Out of thirteen events, Brabham won ten and Hulme two, with eleven poles and twelve fastest laps between them, and seven 1-2 finishes. Brabham subsequently won the 1966 Trophées de France championship. [5]
For 1967 the Formula Two rules were changed and the engine limit increased to 1600cc. Honda's Formula Two involvement came to an end and the engines were returned to the company.
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 four valves per cylinder.
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The 1968 Formula One season was the 22nd season of the FIA's Formula One motor racing. It featured the 19th FIA World Championship, which commenced on 1 January, and ended on 3 November after twelve races, and numerous non-championship races. Graham Hill won the second of his World Championship titles, with Lotus.
David Brabham is an Australian professional racing driver and one of the most successful and experienced specialists in sports car racing. He has won three international Sports Car series and is one of four Australians to have won the Le Mans 24 Hour sports car race, winning the event in 2009. Brabham won the American Le Mans Series in 2009 and 2010. He also competed in Formula One, racing for the Brabham and Simtek teams in 1990 and 1994, respectively. Brabham is the youngest son of three-time Formula One world champion Sir Jack Brabham, brother to Geoff Brabham and Gary Brabham. He is also brother-in-law to Mike Thackwell, father to Sam Brabham and uncle to Matthew Brabham.
Teodorico Fabi is an Italian former racing driver. He competed in Formula One and sports car racing, and claimed pole position in his rookie year at the 1983 Indianapolis 500. Teo is the older brother of former Formula One driver Corrado Fabi.
Repco is an Australian automotive engineering/retailer company. Its name is an abbreviation of Replacement Parts Company and it is best known for spare parts and motor accessories.
The Brabham BT49 is a Formula One racing car designed by South African Gordon Murray for the British Brabham team. The BT49 competed in the 1979 to 1982 Formula One World Championships and was used by Brazilian driver Nelson Piquet to win his first World Championship in 1981.
The Honda RA300 was a Formula One racing car produced by Honda Racing, and introduced towards the end of the 1967 Formula One season. It retained the same V12 engine as the preceding RA273 car, but the chassis was designed by Lola's Eric Broadley and based on a previous Lola Indianapolis 500 car, the T90. Internally, Lola designated the RA300 the T130. This collaboration resulted in the machine quickly being dubbed the "Hondola" by the motorsports press.
The Brabham BT19 is a Formula One racing car designed by Ron Tauranac for the British Brabham team. The BT19 competed in the 1966 and 1967 Formula One World Championships and was used by Australian driver Jack Brabham to win his third World Championship in 1966. The BT19, which Brabham referred to as his "Old Nail", was the first car bearing its driver's name to win a World Championship race.
The Repco Brabham BT24 was a Formula One racing car design. It was one of three cars used by the Brabham racing team during their championship-winning 1967 Formula One season. Only three BT24 chassis were ever raced.
The Honda RA271 was Honda's second Formula One racing car, and its first to actually enter a race. The chief engineer on the project was Yoshio Nakamura, with Tadashi Kume in charge of engine development. It was driven in three races during 1964 by American driver Ronnie Bucknum.
The Brabham BT3 is a Formula One racing car. It was the first Formula One design to be produced by Motor Racing Developments for the Brabham Racing Organisation, and debuted at the 1962 German Grand Prix. The Brabham BT3 was the vehicle with which team owner – then two-time World Champion – Jack Brabham, became the first driver ever to score World Championship points in a car bearing his own name, at the 1962 United States Grand Prix. The following year Brabham also became the first driver ever to win a Formula One race at the wheel of an eponymous car, again driving the BT3, at the 1963 Solitude Grand Prix. The BT3 design was modified only slightly to form the Tasman Series-specification Brabham BT4 cars.
The Brabham BT50 was a Formula One racing car designed by Gordon Murray and powered by a turbo BMW engine. It was raced by the Brabham team, owned by Bernie Ecclestone, during the 1982 Formula One season. Driven by Nelson Piquet and Riccardo Patrese, it made its debut at the South African Grand Prix before being withdrawn for further development of its engine while the team reverted to the previous year's car, the Brabham BT49. On the reintroduction of the BT50, Piquet finished fifth in the Belgian Grand Prix. A few races later he drove it to a win in the Canadian Grand Prix. Later in the year it achieved three more finishes in the points for the team. During the second half of the season, Brabham implemented the strategy of mid-race refueling. This allowed Piquet and Patrese to start the races relatively light and use their reduced weight to gain track position over their competitors before stopping to refuel. The poor reliability of the BT50 meant that they had only a few opportunities to demonstrate the strategy in practice.
The Brabham BT23 was a formula racing car built by Brabham in 1967.
The BRM P83 was a Formula One racing car designed by Tony Rudd and built by British Racing Motors for the new engine regulations of 1966. It used a highly unorthodox H16 engine which caused problems throughout the car's racing life, and despite the best efforts of Graham Hill and Jackie Stewart took BRM from championship contenders to also-rans, leading it to be regarded alongside the BRM Type 15 as another embarrassing failure for the British marque caused by overcomplicated engineering.
The 14th Grand Prix de Rouen-les-Essarts, was the third round of the 1966 Trophées de France. It was held on the Circuit de Rouen-les-Essarts, in Grand-Couronne, near Rouen, on the 10 July. This Formula Two race was only a week after the previous round at Reims, and the cars were brought over from there and assembled in time for opening qualifying on the Thursday. Qualifying was scheduled for Thursday and Friday. This allowed those drivers competing in the Martini Trophy race at Slverstone to practise and then fly to England for the sportscar race and return to Northern France in time for the race on Sunday.
The Trophée Craven 'A', was the fifth round of the 1966 Trophées de France. This was held on the Bugatti au Mans, located in Le Mans, Maine, France, on 18 September. The following July, the circuit was home to the 1967 French Grand Prix, of which all three drivers on the podium that afternoon – Jack Brabham, Denny Hulme and Jackie Stewart – raced in this event.
The Brabham BT7 is a Formula One racing car. It was raced by the Brabham Racing Organisation and several privateers from 1963 to 1966. A development of its predecessor, the Brabham BT3, the car proved to be competitive during 1963 and 1964, taking Dan Gurney to two victories. Technical issues prevented the BT7 from scoring better results. The car was equipped with a more reliable Hewland gearbox compared to the Colotti-Francis in the BT3. Malcolm Sayer from Jaguar Cars was consulted to give input for the revised chassis. The slick aerodynamics proved particularly strong at high speed circuits such as Monza or Spa. Its successor, the BT11, was a slightly altered BT7 aimed for customers such as Rob Walker or Jo Siffert.
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