Jun.24 (GMM) Cosworth is tweaking the design of its formula one engine in order to accommodate KERS systems in 2011.

Although already permitted by the technical regulations, the teams voluntarily agreed to not use the energy-recovery technology this season.

But for 2011, the FOTA ban will lapse, and teams currently powered by Ferrari, Mercedes and Renault have indicated they will fit KERS systems to their cars.

Williams has also indicated it will run KERS in 2011, and as well as the British team, Northampton based Cosworth also currently powers Lotus, Virgin and HRT.

"We have to make several new configurations to our V8 and also change some of the accessories," Cosworth's business director Mark Gallagher is quoted by Autosprint's Italian-language auto.it.

He confirmed: "Our partners will be able to use KERS if they so choose."

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