SL65amg

Since we now know that AMG will introduce a N/A 6.3 V-8, then the twin-turbo 6.3 V-8, and then after that a special editon 6.8 or 6.9 liter twin-turbo V-8 with almost 900 lb/ft of torque, then what about a super special edition V-12 twin turbo to top them all? Will they really re-introduce a 7.3 V-12 model to sit on top of all other models, even on top of the 6.9 twin-turbo V-8 models? And if so, when?

AMG obviously likes to have limited edition bored-out high-output V-12's to top the range of the AMG's, so they won't allow a 6.9 V-8 to be the ultimate top dog will they? Bringing back the "7.3" designation for an ultimate AMG bored out twin-turbo V-12 would be phenomenal.

Anyone agree? Anyone heard anything? They will need to seriously strengthen the transmission for sure. And, considering what the HP figures for the 69 models will be, a 7.3 model will have to have atleast 750 HP to be considered the very ultimate top dog, don't you all think?

IanSL55

Where have you read about a twin turbo 6.3? As it is, I'm hearing the new 6.3 won't fit into the R230 so don't expect to find it there in any form...

~ Ian

BoBcanada

i dont see why 6.3 wont fit into r230????

IanSL55

[QUOTE=BoBcanada]i dont see why 6.3 wont fit into r230? [QUOTE]

Automobile magazine I believe was quoted as saying the 6.3 would not find its way into the R230.

I may be wrong... but it certainly begs the question... Does MB plan to use the same N/A 6.3 in the SL-Class that they have in the new AMG version M-Class? You can only tweak output so much... I would think that the upper echelon cars would get something different, something special v. what will be used in the E, C, and M-Class cars.

You have two brand new 5.5L engines (V8, 383HP and V12, 509HP) that will be introduced w/ the S-Class in 2007 -- engines which will probably filter down into the base SL500 and SL600. Now in the upcoming AMG version, will they SC or TT one or use an entirely different engine altogether (i.e. the 6.3L)?

Just my musings.

~Ian

JackStraw

I am pretty sure that the V12 is not changing anytime soon. However, MB is upping the stated horsepower to 510.

IanSL55

You're probably right... I just re-read the article.

According to Automobile Magazine, the new M156 V8 (N/A 6.3) will find its way into the ML63, CLK63, E63, and R63. Two turbo charged versions of this engine will produce 563hp/664lb-ft and 697hp/886lb-ft (but they don't mention where these engines might end up). Additionally, they state the evolution of the N/A version would be to a increased displacement of 6.8L.

~ Ian

sprins

The turbo-charged version of the new 63 engine was cancelled by AMG.

sicrx65

Dude that sucks

sprins

Well, considering AMG, they probably cancelled for a good reason, and they will come up with something even better.

IanSL55

Does that roll us back to a SC or TT version of the new 5.5 V8?

~ Ian

SL65amg

I can't remember the names, but there were already several mags that have stated that there will be a twin-turbo V-8 for the S/CL/SL class, and then later a "69" model with an even bigger bored out twin turbo V-8 after that.
Also heard that AMG will have to have a top dog twin-turbo V-12 to be the halo car for the other AMG's, including all the AMG V-8's, so I guess we can suspect that in the next few years we will see a super-powerful all-new twin-turbo V-12. I don't think seeing the horsepower on this thing go up and over 750 would surprise anyone at all. I mean, if a chipped current 65 engine can make well over 700 horsepower, then even a bored out version of that engine (like maybe to 7 point something liters) would produce atleast 750 horsepower but probably alot more ..... 850 is more like it. That's not even taking into consideration if AMG decides to just add four more cylinders to their current 6.3 liter V-8, make it a V-12, add twin-turbo's, and then what we'll see is an all-new V-12 design with 48 Valves, DOHC, direct injection, all-new technology, etc... Combine that with a hopefully much strengthened 7-Speed and we'll have cars that are inconceivably fast.

AMG will seriously need to look into better and bigger tires for these cars though for sure. 285 and 295 mm width tires just ain't cuttin it if they want to sell cars with 664 lb/ft, then 889 lb/ft, and then another one maybe with around 1,000 lb/ft of torque. For that kind of stuff they will need newly designed bodies with much wider fenders to house much more serious hardware. The new Bugatti Veyron has I heard newly designed Michelin tires which can easily withstand extremely high heat, weight, and pressures. It can withstand a very heavy car going to over 260 MPH. And it's extremely wide, like around 365 mm wide or so. And it's a runflat too I think. That would be a great tire for a future SL 69 and/or SL 73. :v

IanSL55

While there is a horsepower race, it has to be done within the confines of profitability -- you need to think commercially. Very few owners are going to take these cars to 200 let alone 100mph.

Remember, except for the rare SLR, MB is not in the business of building and selling exotics. These are street cars, engineered and built to be sold in relatively high production numbers. Performance is certainly important, however it's only one factor towards what makes these cars sell to the general public.

I think it's far more likely that the N/A 6.3L engine (~500HP) finds it's way into the 'lesser' AMG model lines (E, C, CLK, etc.) with the upper level AMG's getting a SC or TT version of a revised V8 making 10-20% more HP than what the current SC 5.5L is making. I believe the SL69 rumor floating around is all motor and based on a 6.8L version of the 6.3L that will debut in the ML. Perhaps we'll see a 7.3 some day but I doubt it will be in the R230.

~ Ian