Mercedes-AMG Unveils Atomic V8 Engine
By Motoring Channel Staff - 13/7/2005
Mercedes-AMG 6.2-litre V8 Engine
V8 Race Pace
There are few naturally aspirated V8s that can
touch AMG's shiny new donk for power output, but
one of them is General Motor's LS7
This rather large 7.0-litre engine outputs slightly
less power than the new German-built AMG mill
- 373kW vs 375kW - but the American Chevrolet
engine churns out more torque, about 27Nm more.
When you compare engine capacity though - AMG's
6.2-litre vs GM's 7.0-litres - it shows just how
much work Mercedes and AMG have put into its new
engine range. And just imagine what a pair of
turbochargers could do to the new Merc V8...
Merc's new V8 engine will see widespread service,
from the R-Class people mover to the large E-Class
saloon and estate models.
- Feann Torr, Editor
Mercedes-AMG has taken a completely new departure: the new
AMG 6.2-litre V8 engine is the first in the world to combine
the high-revving concept with a large displacement.
Developed entirely by AMG, this high-performance engine has
a displacement of 6.2-litres and generates an output of 375kW
(510hp) @ 6800rpm, plus a maximum torque of 630 Newton metres,
which makes the new power pack by AMG the world's most powerful
naturally aspirated 8-cylinder production engine.
Thanks to its large displacement, the V8 by AMG develops
around 20 percent more torque than comparable naturally aspirated
engines in this performance class.
Made completely from high-strength aluminium, this naturally
aspirated V8 engine has a wealth of exciting features derived
from motorsport, and impressively documents the successful
motor racing history of AMG.
Together with a variable intake manifold featuring two integral
throttle flaps, the vertical arrangement of the intake and
exhaust ducts ensures perfect cylinder charging.
Bucket tappets in the cylinder heads allow a stiff valve
train and therefore high engine speeds. Variable camshaft
adjustment, a particularly rigid closed-deck crankcase and
cylinder walls with a new, revolutionary LDS coating are further
attributes of this ultra-modern V8 engine made by Mercedes-AMG.
The high expectations of AMG customers and the impressive
history of AMG 8-cylinder engines were both an incentive and
an obligation for the engineers and product planners at Mercedes-AMG
GmbH to come up with a superlative new V8 power unit.
A mere glance at the key technical data shows that this has
been achieved: from a displacement of 6208 cubic centimetres,
the AMG V8 aluminium engine develops a peak output 375kW/510hp
@ 6800rpm and a maximum torque of 630Nm which is available
from 5200rpm. The maximum engine speed is 7200rpm.
AMG 6.2-litre V8 Specifications:
Displacement: 6208 cc
Bore/stroke: 102.2/94.6 mm
Compression ratio: 11.3 : 1
Max. power: 375kW @ 6800rpm
Max. torque: 630Nm @ 5200rpm
This unique combination of a fast-running concept and a large
displacement achieves the best of both worlds: exhilarating
flexibility accompanied by high torque at low engine speeds.
The driver experiences the decidedly sporty character of the
engine in the form of great agility and dynamic responsiveness
in all engine speed ranges.
The new AMG V8 already delivers 500Nm to the crankshaft @
2000rpm, while the maximum of 630Nm is on tap at 5200 rpm
more than any other naturally aspirated engine in this
output and displacement class. In short, the new AMG 8-cylinder
guarantees dynamic acceleration, rapid intermediate sprints
and sheer driving pleasure at the highest level.
In design terms the new 8-cylinder engine by Mercedes-AMG
is the first completely autonomous development to have no
features or shared parts whatsoever in common with other 8-cylinder
units by Mercedes-Benz. The new 6.2-litre unit differs from
the other AMG V8 engines based on Mercedes designs in the
distance between cylinders, the crankcase concept, the sophisticated
intake and exhaust manifolds and the valve train; the bore/stroke
ratio is also a completely new departure for Mercedes-AMG.
The new powerplant is produced at the ultramodern AMG engine
workshops, according to the "one man, one engine"
philosophy. This means that a single technician assembles
the complete engine by hand and as witness his signature
appears on the engine's AMG badge.