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    • DCT Build Part VII - Taking the BMW E92 M3 DCT to the next level, 800+ wheel horsepower clutch disc capacity

      You have seen the DCT taken apart, what it looks like inside, worn clutch discs, and brand new higher capacity clutch discs made. The new discs handle 600+ and 700+ whp respectively. With my power goals, SSP has decided to build a clutch pack that is beyond anything developed at this time for the DCT. What is the power goal? Well, it is beyond what is currently available and SSP is currently developing a clutch disc pack capable of over 800 wheel horsepower.

      How is this being done?

      The current clutch discs are of a thicker material than the stock discs. However, the stock clutch pack has 9 discs in it. By increasing the number of clutch discs they are going to increase the maximum torque capacity. By going to a thicker material and increasing the total number of discs to 11, the DCT in the BMW M3 will be taken to a level no one previously thought was possible. This is going to be similar to the GTR 1000 hp clutch setup by SSP (pictured) but the GTR uses more clutch discs albeit smaller, thinner discs.

      What else is being done and how much time will it take?

      The DCT is going to receive a cooling system based on what SSP has done with the GTR's. This will be a DCT specific application and will be great for the guys who track. No more overheats, no more staying away from the track on hot days. Look for a separate build thread specifically for the cooling system in the next few weeks. Regarding the time period, expect completion next month with the car returning fully assembled and capable of handling the increased power.


      This article was originally published in forum thread: M3 DCT Build Journal - World's First BMW DCT Build started by Sticky View original post
      Comments 3082 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
        What the hek its been nearly a year. What other work?
        Yes, getting a custom transmission built that nobody has ever done takes a wile. I'm patient, not a big deal.

        The engine has to be installed, then a supercharger chosen, then the tuning. I may also stroke the motor which would add time, we will see.
      1. GG///M3's Avatar
        GG///M3 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, getting a custom transmission built that nobody has ever done takes a wile. I'm patient, not a big deal.

        The engine has to be installed, then a supercharger chosen, then the tuning. I may also stroke the motor which would add time, we will see.
        Yes I would be ready to murder many kittens, and puppies at that point.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
        Yes I would be ready to murder many kittens, and puppies at that point.
        I won't murder any animals over build time on complex technical issues. It is all coming together and there will be a lot of fun had when it is done.
      1. Sorena's Avatar
        Sorena -
        it's yours ? then $#@! you !!
        man I love that M logo
      1. GG///M3's Avatar
        GG///M3 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I won't murder any animals over build time on complex technical issues. It is all coming together and there will be a lot of fun had when it is done.
        I will also murder humans/aliens for these reasons.
      1. Yukohama's Avatar
        Yukohama -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I won't murder any animals over build time on complex technical issues. It is all coming together and there will be a lot of fun had when it is done.
        chaos will ensue if i don't get to experience this beast in action.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Yukohama Click here to enlarge
        chaos will ensue if i don't get to experience this beast in action.
        Any BB member I meet I will be more than glad to take for a ride, trust me.
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Fantastic job
      1. Jimefam's Avatar
        Jimefam -
        Wait I thought you said the motor was already built? So how would you then stroke it?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jimefam Click here to enlarge
        Wait I thought you said the motor was already built? So how would you then stroke it?
        Yep, the motor is built currently at stock displacement with sleeves (slightly more bore).

        If I want to stroke it, they offered me a good deal to do so but that would involve a rebuild, yes. New crank and new rods.

        I'm tempted to be honest.
      1. Sticky's Avatar
        Sticky -
        What is CNC machining? CNC stands for computer numerical control and you see this term used often in the aftermarket automotive industry. Basically, a computer is used to design the product and this design is fed to a computer that tells the machine what to do. In this case, create a DCT oil pan out of a solid block of billet aluminum. Check out the video of the process below.

        Click here to enlarge

        <object width="640" height="390"><param name="movie" value="http://www.youtube.com/v/aU_qdlt4Sec?fs=1&amp;hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/aU_qdlt4Sec?fs=1&amp;hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="390"></embed></object>
      1. leo985i's Avatar
        leo985i -
        Machines have come a long way. Can't even imagine how long it would take a human to do that by hand. If it's even possible.
      1. THATDONFC's Avatar
        THATDONFC -
        Their coolant has too much water in it. Cool Video though. I'm gonna post one when I make my wheels. Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by THATDONFC Click here to enlarge
        Their coolant has too much water in it. Cool Video though. I'm gonna post one when I make my wheels. Click here to enlarge
        How much water is it supposed to have?
      1. CBR335's Avatar
        CBR335 -
        Very cool! Looks awesome!
      1. alpinedevil335's Avatar
        alpinedevil335 -
        Nice! Logo looks great! Im in for taking a spin in that thing when its done.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by alpinedevil335 Click here to enlarge
        Nice! Logo looks great! Im in for taking a spin in that thing when its done.
        Count on it Click here to enlarge
      1. inlineS54B32's Avatar
        inlineS54B32 -
        That block of billet is awesome. Nice job.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by inlineS54B32 Click here to enlarge
        That block of billet is awesome. Nice job.
        Thanks, all credit goes to SSP.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        sick!