S55 AMG, S65 AMG , S63 AMG (W220, W221) 2001 - 2013 (Two Generations)

Difference Between S65 And S600 Engine

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Old 04-25-2006, 04:27 PM
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CLS 55 AMG
Difference Between S65 And S600 Engine

Hello....not sure so thats why im asking.....arent both engines twin turbo? If so whats the difference? Bigger throttle body....headers...cams etc??? Also how far off are the quarter mile and 0-60 times between the two cars.



Thanks, -RiCh
Old 04-25-2006, 04:45 PM
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Just for starters, I believe motors are different size.

S600 is 5.5L V12 while S65 is 6.0L V12.
Old 04-25-2006, 09:41 PM
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interesting...thanks for the info man, im sure theres alot more...ill do some research
Old 04-27-2006, 01:14 AM
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'19 E63S sedan
V12s

S600: 5,513 cc; 510 hp @ 5,000 rpm; 612 ft-lb @ 1,800-3,500 rpm
S65: 5,980 cc; 612 hp @ 4,800 rpm; 738 ft-lb @ 2,000-4,000 rpm

It's just tuning, including the extra ccs. Same base engine; both are twin-turbo.
Old 04-27-2006, 10:22 AM
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Originally Posted by whoover
S600: 5,513 cc; 510 hp @ 5,000 rpm; 612 ft-lb @ 1,800-3,500 rpm
S65: 5,980 cc; 612 hp @ 4,800 rpm; 738 ft-lb @ 2,000-4,000 rpm

It's just tuning, including the extra ccs. Same base engine; both are twin-turbo.
in addi(c)tion they have different ECUs and camshafts. the 65ers are also stiffer than the 5.5 L V12s.
Old 04-27-2006, 10:55 AM
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The S65 is also running more boost, 21.5 psi.
Old 04-29-2006, 07:01 PM
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The S65 is the S600 on steroids. Ask Rush L.
Old 04-29-2006, 07:20 PM
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What's interesting is that a RennTech ECU upgrade enables the 5.5 Litre TT to slightly exceed the 65's power levels. Less costly soultion to having a car of roughly equal power. Then again, RennTech also tunes the 65's.
Old 05-01-2006, 07:32 PM
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Originally Posted by whoover
S600: 5,513 cc; 510 hp @ 5,000 rpm; 612 ft-lb @ 1,800-3,500 rpm
S65: 5,980 cc; 612 hp @ 4,800 rpm; 738 ft-lb @ 2,000-4,000 rpm

It's just tuning, including the extra ccs. Same base engine; both are twin-turbo.
It is a different engine........I'm sure it's based on the same principles but, think about this: If it were just tuning, don't you think that the guys at Renntech would be able to pump up the S600 to 675-685 hp like they do on the S65? Even if they were to charge you more money for the extra horses, they would! Their not going to leave 50-75 hp on the table......so to speak!
Old 05-02-2006, 05:38 PM
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The 600 gets a 160 speedo while the 65 gets the intimidating 220 m/h speedo.
Old 05-03-2006, 02:16 AM
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Originally Posted by SJRAMROD
It is a different engine........I'm sure it's based on the same principles but, think about this: If it were just tuning, don't you think that the guys at Renntech would be able to pump up the S600 to 675-685 hp like they do on the S65? Even if they were to charge you more money for the extra horses, they would! Their not going to leave 50-75 hp on the table......so to speak!
The difference in displacement accounts for the extra potential. Boring and stroking is part of what tuners like AMG do. In the W221 S-class, the S600 engine is a type 275.963 and the S65 engine is a 275.982. All S600 and S65 biturbo V12s are 275.xxx.

It's really just semantics. Call it the same engine family or different states of tune of the same engine. Unlike the new "63" engine that AMG developed from scratch, the 65 AMG engines are modifications of the base 275.x Mercedes 12.

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