• Weistec Engineering developing Mercedes McLaren SLR M155K V8 twin turbocharger package

      Big news here from Weistec Engineering who has managed to keep their Mercedes-Benz McLaren SLR twin turbocharger development under wraps until now. The Mercedes-Benz McLaren SLR as you know has an M155K supercharged 5.5 liter AMG V8 which is based on the M113K supercharged 5.5 liter V8 familiar to us from the W211 generation E55 AMG. Weistec decided to remove the supercharger on the SLR and add a pair of turbochargers in.

      The Weistec SLR Biturbo system is still under development so few details will be shared at this time. What we can tell you is it will be officially released later this year. Additionally, Weistec will have M155K V8 built motor options with forged internals for those that want big boost. The system will be sold as a package.

      As far as power figures expect some eye opening numbers when the time comes.




      The Weistec SLR McLaren Biturbo System is the pinnacle of SLR performance. Cast Inconel manifolds flank the 5.5L V8, supplying ball bearing turbochargers and external waste gates with high flowing exhaust gases. These gases are then routed via 304 stainless steel downpipes, paired with aerospace grade bellows, and connect to the mufflers. The biturbo’s forced air charge is tri-cooled via an additional intercooler and cooling circuit working in conjunction with the factory intercoolers, allowing for high performance and consistency in any climate.


      Official Release Fall 2014
      This article was originally published in forum thread: Weistec Engineering developing Mercedes McLaren SLR M155K V8 twin turbocharger package started by Sticky View original post
      Comments 15 Comments
      1. DFM's Avatar
        DFM -
        Absolutely beautiful!
      1. Sticky's Avatar
        Sticky -
        That it is. This is highly impressive.

        I'm wondering who gave their SLR for the development? That's awesome.
      1. ezec63's Avatar
        ezec63 -
        Wow sick !! It took the clk's some time to take down the SLR Mercedes record and that was with the SLR still on the stock blower. I think it's coming back for it's crown ! This thing should be stupid fast
      1. CookieCrisp's Avatar
        CookieCrisp -
        maybe i dont need to invest in a 722s after all...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by CookieCrisp Click here to enlarge
        maybe i dont need to invest in a 722s after all...
        What I was thinking.
      1. Jacob502's Avatar
        Jacob502 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        That it is. This is highly impressive.

        I'm wondering who gave their SLR for the development? That's awesome.
        There was an SLR that was shipped to them from the UAE. I think this might be it.
      1. leveraged sellout's Avatar
        leveraged sellout -
        Wow, this should be awesome. Very much liking the sound of this.

        Next it would be awesome if they figured out an M156 turbo setup Click here to enlarge
      1. dcmetro's Avatar
        dcmetro -
        Goddam !!! thanks to the oil-head who provided the devellopement car... I'm not sure there will be a big market for this upgrade...unlike the M156 Supercharging market wich is pretty promising I think. I wonder how many M156 SC Kits have been sold yet by Weistec
      1. Zeee_Q's Avatar
        Zeee_Q -
        Very impressive! Can't wait to see what it can do.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dcmetro Click here to enlarge
        thanks to the oil-head who provided the devellopement car...
        I don't know what your intention was but this comes off wrong.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dcmetro Click here to enlarge
        I'm not sure there will be a big market for this upgrade...unlike the M156 Supercharging market wich is pretty promising I think. I wonder how many M156 SC Kits have been sold yet by Weistec
        This isn't a project to make big money. This to show who's boss.
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Absolutely amazing! Nice work @Weistec
      1. dcmetro's Avatar
        dcmetro -
        Sorry for "Oil-head" I didn't want to be derogatory. There is sometimes a little jealousy toward Middle East mega rich people that's why they are somtimes called like that but that's stupid I agree.
      1. PetroC63's Avatar
        PetroC63 -
        Absolutely awesome!
      1. BigM62's Avatar
        BigM62 -
        I am so jealous that Weistec only does MB's.