S 63 Amg

[S Klasse]

Mai "putin" puternic decat V12-ele de pe S 65 AMG, motorul de pe S 63 AMG ofera o putere maxima de "doar" 525 cai putere, masina ajungand de la 0 la 100 km/h in 4.6 secunde.

Motorul V8 de 6.3 litri, normal aspirat, este de asemenea folosit si de urmatoarele modele AMG: CLS 63, CLK 63, E 63, R 63, ML 63 si CL 63. Puterea vine exclusiv de la divizia AMG si inlocuieste motorul supraalimentat de 5.5 litri disponibil pe 55 AMG.
La exterior, noul Mercedes S 63 AMG este foarte asemanator cu S 65 AMG care a fost prezentat in decembrie 2005.

[dan500se]

S 65 AMG...Prezentare video...

http://images.google.nl/imgres?imgurl=http://www.petrolhead.nl/mercedes-s65amg-5.jpg&imgrefurl=http://www.petrolhead.nl/2008/01/video_mercedes_s65_amg.php&h=335&w=600&sz=95&hl=nl&start=51&tbnid=E_XU_2U3kHgzRM:&tbnh=75&tbnw=135&prev=/images%3Fq%3Dmercedes%26start%3D40%26gbv%3D2%26ndsp%3D20%26hl%3Dnl%26sa%3DN

[VLADD]

Mercedes-AMG V8: The Worlds Most Powerful Eight-Cylinder Engine

Acest motor despre care vorbim este cel mai puternic V8 normal aspirat din lume. Descriere si imagini :

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.
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 369 lb-ft to the crankshaft at 2,000 rpm, while the maximum of 465 lb-ft is on tap at 5,200 rpm – more than any other naturally aspirated engine in this output and displacement class. In short, the new AMG eight-cylinder guarantees dynamic acceleration, rapid intermediate sprints and sheer driving pleasure at the highest level.
Apart from the large overall displacement, the extremely high output and torque is above all due to the sophisticated intake system – a completely new departure for AMG. Its major characteristics are large cross-sections, the streamlined design of the entire intake and exhaust manifolds, and the vertical arrangement of all ducts in line with motor-racing practice. The newly developed and patented variable intake manifold, which is made of magnesium and has two parallel-action internal throttle flaps, is a world first. The combined action of these components, which are highly unusual in regular engine production, ensures perfect cylinder charging.

The 32 valves in the cylinder heads are operated by bucket tappets for a rigid valve train and high engine speeds – a technology which has proved its worth in motor racing. Continuous adjustment of the camshafts on the intake and exhaust sides is another special feature of this up-to-date AMG V8 engine. The interior of this powerful new development conceals yet another genuine world first, too: as the world’s first regular production engine, the AMG 6.3-litre V8 engine features a special twin-wire-arc-sprayed (TWAS) coating on the cylinder walls, a new process which produces outstandingly low friction.