Antonov SuperchargerUK-based Antonov Automotive Technologies is advocating the use of a dual-speed supercharger (which they are already producing and continuously improving) for the current trend of downsizing displacement and force inducting engines in efforts to improve fuel economy and emissions.

“Car makers are increasingly looking at superchargers to enhance the performance of small engines. Unlike turbochargers there are no heat issues to manage, and the study of exhaust gases can then be assigned to energy recovery systems,” says Antonov operations director Chris Baylis.

According to Antonov, a dual-speed supercharger which can run faster at low engine RPMs for that instant “kick” and run slower at high engine RPMs to extend the boosted torque curve across the rev range can be much cheaper than complex combinations of a supercharger and turbocharger like the Volkswagen 1.4 litre TSI’s twin-charger.