Downsized 4.0 TFSI for Audi S8 cuts fuel consumption 23% compared to predecessor; cylinder deactivation and start-stop
Green Car Congress
OCTOBER 11, 2011
Audi’s principle of downsizing: “ Forced induction replaces displacement ” One twin-scroll turbocharger per cylinder bank compresses the fresh air. Technologies such as plate honing are used during assembly of the V8 at the Audi plant in Györ, Hungary. The demand-controlled oil pump varies oil pressure in two stages.
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