Mercedes-Benz S 65 AMG - Manual (Page 8)

Daimler Communications, 70546 Stuttgart, Germany
Mercedes-Benz – A Daimler Brand
Page 8 AMG 6.3-litre V8 engine: technology transfer from the world of motorsport
The technical basis for the dynamic DNA comes courtesy of the thoroughbred
motorsport technology of the AMG 6.3-litre V8 engine. This includes the light-
weight, extra-rigid aluminium bedplate crankcase with closed-deck technology
and the twin-wire-arc-sprayed coating on the cylinder walls used exclusively by
AMG. The streamlined design of the intake and exhaust ducts together with the
magnesium variable intake manifold featuring two parallel-action internal throttle
flaps results in superlative cylinder charging and high power output.
The 32 valves in the cylinder heads are operated by bucket tappets for a rigid val-
ve train and high engine speeds. Continuous adjustment of the camshafts on the
intake and exhaust sides ensures an optimal supply of fuel/air mixture to the
eight combustion chambers.
Key data at a glance:
Cylinder arrangement V8
Cylinder angle
90 o
Valves per cylinder 4
Displacement
6208 cc
Bore x stroke
102.2 x 94.6 mm
Cylinder spacing
109 mm
Compression ratio
11.3 : 1
Output
386 kW/525 hp at 6800
rpm
Max. torque
630 Nm at
5200 rpm
Maximum engine speed
7200 rpm