• B55 AMG? Mercedes swaps an M273 5.5 liter V8 into the B-class

      This is just a prototype, so don't get too excited. A dozen Mercedes apprentice engineers from the Rastatt facility decided to swap the big V8 into the B-class for fun. They started with a B200 CDI and took a naturally aspirated 5.5 liter V8 from the 550 models and swapped it in along with a 7 speed auto transmission. They also made it rwd using an E430 diff and axles. It took them 8 months to do this and we say it was 8 months well spent. How cool would it be to get paid to work on a project like this?

















      This article was originally published in forum thread: B55 AMG? Mercedes swaps an M273 5.5 liter V8 into the B-class started by Sticky View original post
      Comments 24 Comments
      1. 1cleanAMG's Avatar
        1cleanAMG -
        bad ass
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by FR305 Click here to enlarge
        bad ass
        I know, it's so cool. If this actually existed as a production model I would look into it.
      1. blkclk550's Avatar
        blkclk550 -
        i would like to read more info like 0-60 and 1/4 miles times.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by blkclk550 Click here to enlarge
        i would like to read more info like 0-60 and 1/4 miles times.
        0-60 in a car like this is rather traction dependent but they quoted around 5 flat which is likely conservative.

        Germany Luxury manufacturers never quote 1/4 mile times although this thing should logically be capable of high 12's at its weight.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        I had the luxury of working on a Bclass at Benz once (came down from Ontario, happened to kick a coil pack while it was here), and lemme tell you that engine bay is SMALL. I wanna see what firewall modifications they did to shoehorn it in there!
      1. 600whp S4's Avatar
        600whp S4 -
        Id rather just put a modded busa motor in it!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 600whp S4 Click here to enlarge
        Id rather just put a modded busa motor in it!
        Although cool, not the same as stuffing a huge Mercedes V8 in there. It was an internal project which makes it that much cooler.
      1. 600whp S4's Avatar
        600whp S4 -
        oh yeah i would take a 55 based b series but as a project Ill stick a 1.3L 200hp busa motor in there. Or a k20 with ITBs
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 600whp S4 Click here to enlarge
        oh yeah i would take a 55 based b series but as a project Ill stick a 1.3L 200hp busa motor in there. Or a k20 with ITBs
        Well while we are dreaming I would do a Hayabusa V8, so there.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        I would use an engine powered by liquid hot magma...
      1. DBFIU's Avatar
        DBFIU -
        Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
        I would use an engine powered by liquid hot magma...
        And babies as engine coolant.
      1. Sticky's Avatar
        Sticky -
        Here is a vid of it doing a burnout, this little thing is awesome:

      1. 930chas's Avatar
        930chas -
        That little beyotcch is badazzz!!
      1. c32AMG-DTM's Avatar
        c32AMG-DTM -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Well while we are dreaming I would do a Hayabusa V8, so there.
        Why shoot so low? I'd take the Veyron SS motor and swap it into an Ariel Atom. And then raise the boost. I bet she'd do some pretty sweet 60-130's when in "kill" mode.
      1. e92's Avatar
        e92 -
        nice steering wheel.

        It's awesome the how they crammed that under the hood with such little space.
      1. DBFIU's Avatar
        DBFIU -
        When you work for AMG, and have access to any and all latest automotive manufacturing $#@!, it's easy!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        When you work for AMG, and have access to any and all latest automotive manufacturing $#@!, it's easy!!
        Then why don't M engineers do cool $#@! like this?
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Then why don't M engineers do cool $#@! like this?
        Too busy trying to save the trees.
      1. Sorena's Avatar
        Sorena -
        it's old but this 450Hp little beast still shines for me
        Attachment 4482
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by HeroSina Click here to enlarge
        it's old but this 450Hp little beast still shines for me
        Attachment 4482
        Yep, very cool, but a Hartge swap.