• Mercedes AMG twin turbo V12 changes - How the new M279 Twin Turbo V12 differs from the previous M275

      You should all know by now that Mercedes is bringing back the twin turbo V12 with the new R231 SL65 AMG. We originally thought this was just the same old M275 V12 that had seen duty in the previous generation 600 and 65 AMG's but the motor has received some updates along with a new M279 engine designation. The 6.0 liter V12 to reach its new 630 horsepower rating received far more than just different ECU software.


      A multi-spark ignition with twelve double ignition coils is used that Mercedes states provides for a smoother motor and more effective combustion. This also is used in conjunction with a new engine management system.

      The cylinder heads were also revised in order to flow better for more power. The turbos have been changed featuring new wheels and are mated to new manifolds. The wastegate ducts have also been revised.

      Additionally, the exhaust system underwent some significant changes. The catalytic converter system was optimized both for emissions and power. The wall thickness of the exhaust was reduced and the system is now 7 pounds lighter than the previous generation.

      Other parts such as the intercooler, throttle body, and airbox remain the same. The M279 is a nice update to what already was a stout powerplant.



      This article was originally published in forum thread: Mercedes AMG twin turbo V12 changes - How the new M279 Twin Turbo V12 differs from the previous M275 started by Sticky View original post
      Comments 150 Comments
      1. Jacob502's Avatar
        Jacob502 -
        This Engine is a killer. It is already available here in Qatar with the G65 and soon in a week or two in the SL65
      1. Jacob502's Avatar
        Jacob502 -
        How many of you guys wanna bet that this new M279 engine will be on the new SLS BS?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        How many of you guys wanna bet that this new M279 engine will be on the new SLS BS?
        Um, I guess I will bet that it won't?
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        How many of you guys wanna bet that this new M279 engine will be on the new SLS BS?
        Why would they put a V12 boat anchor in a car that they are trying to take weight out of ? Do you even think about things before you post them ??
      1. Jacob502's Avatar
        Jacob502 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Um, I guess I will bet that it won't?
        Only time will tell
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        Only time will tell
        I'll take that bet. I have $10k USD that says if and when the SLS BS is released it will NOT have a V12. Care to put your money where your mouth is ?
      1. m54b25's Avatar
        m54b25 -
        Not enough room in the SLS for V12.. it seems that the SLS designed around the M159 exclusively. Maybe a M157 will do... it will give plenty of room for BIG turbos in the SLS =)
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        I'll take that bet. I have $10k USD that says if and when the SLS BS is released it will NOT have a V12. Care to put your money where your mouth is ?
        Guess that's a no??
      1. Jacob502's Avatar
        Jacob502 -
        Click here to enlarge Originally Posted by m54b25 Click here to enlarge
        Not enough room in the SLS for V12.. it seems that the SLS designed around the M159 exclusively. Maybe a M157 will do... it will give plenty of room for BIG turbos in the SLS =)

        the SLS has much more room than the SL

        Whatever the BS engine will be. I dont think 650HP will be from a naturally aspirsated engine
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        the SLS has much more room than the SL

        Whatever the BS engine will be. I dont think 650HP will be from a naturally aspirsated engine
        I have good information from a source at the Performance Studio that it will be na - you mentioned a bet before yet seem unwilling to back it up.
      1. AMG4V's Avatar
        AMG4V -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        Only time will tell
        are you going to take that bet or not??
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by AMG4V Click here to enlarge
        are you going to take that bet or not??
        I think it's pretty clear he's all talk.
      1. _AMG_'s Avatar
        _AMG_ -
        Click here to enlarge
      1. SLS AMG's Avatar
        SLS AMG -
        Click here to enlarge Originally Posted by _AMG_ Click here to enlarge
        Click here to enlarge
        I love it when you do that Click here to enlarge
      1. Jacob502's Avatar
        Jacob502 -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        I have good information from a source at the Performance Studio that it will be na - you mentioned a bet before yet seem unwilling to back it up.
        loooool.

        you have sources?Click here to enlarge



        Yes I'll take the bet.

        Now show me your source!
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        loooool.

        you have sources?Click here to enlarge



        Yes I'll take the bet.

        Now show me your source!
        What does where I get my information from have to do with anything ?? You said you wanted to bet, I accepted, and now you have too.
      1. Jacob502's Avatar
        Jacob502 -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        What does where I get my information from have to do with anything ?? You said you wanted to bet, I accepted, and now you have too.

        I also did!

        now show me the source where the 2013 SLS BS is NA

        ????
      1. LZH's Avatar
        LZH -
        Click here to enlarge Originally Posted by Jacob502 Click here to enlarge
        I also did!

        now show me the source where the 2013 SLS BS is NA

        ????
        Are you retarded or something ? I know someone in Affalterbach who has been at the Performance Studio since 2006. That's my source - but what does it matter ?? You agreed to the bet already so there's no backing out now. When the SLS BS comes out I'll be looking for my $10g's.
        And what makes you think it will be a MY2013?
      1. LZH's Avatar
      1. Jacob502's Avatar
        Jacob502 -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        Are you retarded or something ? I know someone in Affalterbach who has been at the Performance Studio since 2006. That's my source - but what does it matter ?? You agreed to the bet already so there's no backing out now. When the SLS BS comes out I'll be looking for my $10g's.
        And what makes you think it will be a MY2013?

        looool. Right you are!

        All you got is BS

        actually you are talking about my 10K. Now how will the loser among us (which is obviously you) will pay up?

        You can send me your phone number on PVT and I'll do the same and lets talk about it.

        God I will love to make you look like an idiot in front of everybody.