The Honda NSX (branded as the Acura NSX in North America and Hong Kong) is a sports car produced between 1990 and 2005 by the Japanese automaker Honda. The 1991 Acura NSX is powered by 2,977 cc, water-cooled, 4-stroke DOHC VTEC gasoline engine. The 1991 Acura NSX features VVIS (Variable-Volume Intake System) which is a magnesium plenum below the intake chamber which opens 6 butterfly valves above 4800 rpm.
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