Using the concept of "two turbochargers are better than one," a twin turbo is exactly what it sounds like: a dual-turbocharger arrangement for an engine. A twin-scroll turbo, by contrast ...

Citroen, in partnership with Peugeot and Ford, has developed a new 2.2 liter 4 cylinder diesel engine which uses a sequential dual turbo setup.The design is aimed at improving engine response at ...