BTCC turbos boost reduction

25 April 2011

newsBritish Touring Car Championship organiser TOCA has today announced that following full analysis of technical data* and taking into consideration other relevant results/information, the new maximum boost limit for all turbocharged cars in the series will be 0.1 bar lower than that recorded by each car on the TOCA Performance Monitoring Device (Logger) during qualifying and rounds four, five and six at Donington Park. All turbocharged cars in the BTCC run control turbos designed and manufactured by Owen Developments Ltd.

This revision will take effect for and from round seven of the 2011 Dunlop MSA British Touring Car Championship (Thruxton 30 April-1 May). It effectively means that whatever boost pressure each car was previously logged as using (i.e. below the former 1.8 limit), then they will each now run to 0.1 bar less.

This is the first year that the majority of the BTCC cars have used a turbocharged engine and some competitors still use the normally aspirated S2000 engines with an 8500 rpm rev limit. This revision can be viewed as 'tweak' to slow down the turbocharged BTCC cars to help equalise engine performance before a switch to all turbo rules (again with Owen's turbochargers) in 2012.

* Technical data analysis carried out by the Chairman of the ETRP (Engine Technical Review Panel) Paul Leeming and the BTCC Chief Scrutineer Peter Riches.

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