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Graham Dale-Jones (M.D.) and Dave Hill (co-director) run International Engine Services . Previously they worked together at Terry Hoyle Engines. Prior to joining Terry Hoyle, Dave was an engine builder at Mountune. In 1970 after university Graham joined Cosworth and spent nine years learning race engine design with the company.
After Cosworth, Graham turned his attention to yachting for a few years. He came back to motor sport to run the Ford motor sport engine department at Borham. Here Graham oversaw development of the RS 200 turbo engine. He also devised a 2.1 litre version of the DFX turbo for the Probe IMSA GTP car and turbocharged version of the 3.9 litre DFL for Group C.
Having joined Terry Hoyle as a partner in 1988, Graham got involved in diverse projects including the design of the BRM V12 Group C engine, which was sadly under funded. In 1992 he left Hoyle to do consultancy work in Holland. At the same time Dave left to run IES, which he had set up with Graham.
Graham is now full time at IES who have premises of 5000sq.ft. in Witham, Essex U.K. They have two dynamometers, employ five engine builders, four of whom do track side support at meetings. IES designed the Nissan BTCC engine that was dominant in the class from 1997 to 2000, winning the manufacturers title in 1998 & 1999. Currently they prepare the Nissan Touring Car engines for the European Touring Car series on behalf of the factory. Customer teams are active in Belgium, the UK, Germany, Denmark, and Turkey. IES also continues to maintain Nissan Super Touring engines for customer teams.
Away from Touring cars, IES designed and developed the first Nissan V6 sports car engine for the Pilbeam MP84 used in the FIA sports car championship and the ALMS series in the USA.