Video - Ford Sierra RS Cosworth RS500 - 1989 BTCC

Videa Ford Sierra Ford Sierra RS Cosworth RS500 - 1989 BTCC

Ford Sierra RS Cosworth RS500 - 1989 BTCC

The 1989 Esso RAC British Touring Car Championship, was the 32nd season of the championship. This season was the final year of the four separate class format, with the championship changing to just two classes for 1990. There were a total of thirteen rounds with the best eleven scores for each driver counting towards the championship. The title was won by John Cleland with a works Vauxhall Astra GTE 16V. Mike Moreton was head of the team that planned to develop an evolution edition aimed at making the car unbeatable on the race tracks. In March 1987, Aston Martin in Tickford was signed for the job of converting the 500 cars. The Cosworth RS500 was announced in July 1987 and was homologated in August 1987. The main difference to the Sierra 3 door Cosworth was the uprated Cosworth competition engine. Its new features were: -The engine had a thicker walled cylinder block to cope with the rigours of the track. -A larger Garrett T31/T04 turbocharger. -A larger air-air intercooler. -A second set of 4 fuel injectors and a second fuel rail (unused in the roadgoing version). -The fuel pump was uprated. -A reworked induction system to allow higher power outputs to be realised. -The oil and cooling system were both also uprated. -The rear semi-trailing arm beam had extended but unused mounting points. The RS500 also had minor external cosmetic differences to its parent the Sierra 3 door Cosworth: -The rear tail gate had a lower spoiler in addition to the upper whale tail, which had ...



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