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    • Kleemann and Xtra-Power join forces to distribute M156 C63/SLS AMG supercharger systems in US

      This is some very interesting news. Kleemann will be distributing and installing Xtra-Power systems from their Colorado Springs, Colorado facility. Dyno numbers are 610 wheel horsepower which is definitely some good power but the pricetag for the SLS supercharger setup is $32k installed. SLS tax? Yes, considering the C63 systems are much cheaper. We also wonder, what happened to Kleemann and their own supercharger setup? Check out the videos below.


      Videos:




      This article was originally published in forum thread: KLEEMANN USA and Xtra Power Join To Create The First Supercharged SLS started by Exeenom View original post
      Comments 9 Comments
      1. MSIZZLE's Avatar
        MSIZZLE -
        as someone else posted on you tube the car seemed slow on the speedo shots
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by MSIZZLE Click here to enlarge
        as someone else posted on you tube the car seemed slow on the speedo shots
        If it's 610 whp then it is no doubt strong.

        That may just be testing or who knows what.
      1. MSIZZLE's Avatar
        MSIZZLE -
        yea but arent those like advertisement vids??? I mean even stock that is a really fast car
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by MSIZZLE Click here to enlarge
        yea but arent those like advertisement vids??? I mean even stock that is a really fast car
        I really don't put much stock in speedo vids, I prefer concrete performance numbers.

        It serves more of a purpose to show you what the sound would be like in the cabin and such, not to show off the performance potential.
      1. MSIZZLE's Avatar
        MSIZZLE -
        that is true
      1. Mthis's Avatar
        Mthis -
        how much is this for the c63's
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mthis Click here to enlarge
        how much is this for the c63's
        They didn't announce the US pricing for the C63 but I'll contact Kleemann and see what I can find.
      1. Mort's Avatar
        Mort -
        Going to be interesting to follow this along. Torque should be awesome from right off the line. Do we know how much boost it produces? Say 5-6 lbs? I am sure I already read it but have forgotten. Definitely has a bad boy - ghetto sort of feel to it. This unit is also probably a little small to build on being 2.3L I think but likely better for the street.

        To get the best out of FI I think the 6.2L engines will need to lower the compression ratio a little. Superchargers will also benefit from custom cams, larger intakes, larger Throttle Bodies, head flow improvements and exhaust mods but not until the engine is worked up a bit to take it. Now that is a bottomless pit....Click here to enlarge

        Seems to be a good start. I still don't feel like I need any more but that is always subject to change. Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Mort Click here to enlarge
        Going to be interesting to follow this along. Torque should be awesome from right off the line. Do we know how much boost it produces? Say 5-6 lbs? I am sure I already read it but have forgotten.
        It was something around 6 pounds if I recall correctly. Positive displacement with that big blower will be fun.

        Click here to enlarge Originally Posted by Mort Click here to enlarge
        This unit is also probably a little small to build on being 2.3L I think but likely better for the street.
        2.3 liters is actually a pretty big blower. There are bigger out there but that is more than enough for the stock internals.

        Click here to enlarge Originally Posted by Mort Click here to enlarge
        Seems to be a good start. I still don't feel like I need any more but that is always subject to change.
        Changes pretty fast Click here to enlarge