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    • DCT Build Part XII - Build complete, pictures of final assembly, transmission cooler, and Viton seals

      Well, this has been a rather lengthy road to completion but the transmission is basically complete. The car was dropped off by SSP last month to Gintani who should have the motor in by the end of this week. The problem is SSP mounted their trans cooler in the location the heat exchanger for the supercharger needs to go so SSP will need to come to Gintani's facility to re-run their lines as the cooler will need to go in a different location. What took so long for this update? Well, we have been waiting, and waiting, and waiting for SSP to send us details on the Viton seals that required 3 redesigns but never received the information on why these seals are superior to the stock units.

      So, I decided to do my own research and here is what I came up with. These are the stock BMW seals used in the DCT. What is wrong with them exactly? We do not know other than they apparently are not up to the task:










      Here are the Viton seals which delayed the project by 3 months. Viton is a synthetic rubber used for seals, O-rings, things of that sort. Viton was likely used as it is less susceptible to decay and already used in BMW applications such as in VANOS. Viton has much higher temperature and chemical resistance characteristics than the stock seals. Here is what they look like:










      This is the DCT cooler that was mounted by SSP up front. This needs to be moved somewhere else as the supercharger heat exchanger will need to go there. This means SSP will need to come out and run their lines again checking all their fluids and so forth before tuning can take place:














      This is the final assembly. So, the transmission is built but it took about a year longer than estimated. I believe I was as patient as possible and hopefully this will all be wrapped up in December with a built motor, built transmission, a YSI, and a ton of horsepower.





































      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 2372 Comments
      1. ZooyorQ's Avatar
        ZooyorQ -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Sunday.
        Excellent! Should be a good time!
      1. PEI330Ci's Avatar
        PEI330Ci -
        I don't care how fast the car is, I'm looking forward to reading about the build process!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by PEI330Ci Click here to enlarge
        I don't care how fast the car is, I'm looking forward to reading about the build process!
        The motor build will be detailed separately.
      1. ajm8127's Avatar
        ajm8127 -
        This thread is so much more enjoyable to read now.

        Good luck with the car. I would say take it slow and don't rush anything, but you've proven yourself a patient man, @Sticky. I am looking forward to reading the engine build thread.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ajm8127 Click here to enlarge
        This thread is so much more enjoyable to read now.

        Good luck with the car. I would say take it slow and don't rush anything, but you've proven yourself a patient man, @Sticky . I am looking forward to reading the engine build thread.
        Much appreciated, thank you.
      1. DevJ's Avatar
        DevJ -
        Been following this thread since the beginning. happy the car is together and you are enjoying it
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DevJ Click here to enlarge
        Been following this thread since the beginning. happy the car is together and you are enjoying it
        Thank you.
      1. 335(ex)(eye)'s Avatar
        335(ex)(eye) -
        Click here to enlarge Originally Posted by ajm8127 Click here to enlarge
        This thread is so much more enjoyable to read now.

        Good luck with the car. I would say take it slow and don't rush anything, but you've proven yourself a patient man, @Sticky . I am looking forward to reading the engine build thread.
        +1

        now that jrcart is not in this thread is awesome, so much less jiber jaber bologna
      1. PennywiseM3's Avatar
        PennywiseM3 -
        What post number has the link for the dyno run video? I am also glad Jrcart is gone, more interested in reading about technical advances for the DCT and S65 than hearing someone constantly stroking their own ego.
      1. ecampbell's Avatar
        ecampbell -
        Joe,

        Publc apology for riding you a bit too much on the build. General Krap that got out of hand.

        Good luck on Sunday (If you run)... Get your ass to Chicago or run with me at the Nevada open road challenge.

        Earl
      1. Sticky's Avatar
        Sticky -
        It's all fine as far as I'm concerned. I think I can run Sunday.

        I will run in Chicago. Silver State isn't my thing although it's way cool.
      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        It's all fine as far as I'm concerned. I think I can run Sunday.

        I will run in Chicago. Silver State isn't my thing although it's way cool.
        My new boy Jake and 'black' are try to get me in. Hopefully then can get you in as well.

        I used to run unlimited silver state but buried more friends than I care to remember so ultimately slowed down so now it is an excuse to party. As a funny, the first time met Hennessey he got three tickets the same day for doing between 150 and 170 between Houston and Dallas with his viper...the good old days when cash got you out of trouble.
      1. nafoo's Avatar
        nafoo -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        Joe,

        Publc apology for riding you a bit too much on the build. General Krap that got out of hand.

        Good luck on Sunday (If you run)... Get your ass to Chicago or run with me at the Nevada open road challenge.

        Earl
        Props Click here to enlarge
      1. MisterEm's Avatar
        MisterEm -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        Joe,

        Publc apology for riding you a bit too much on the build. General Krap that got out of hand.
        Good call Earl and + rep. It is tough to see the fine line between ball-busting and over-the line when you're in the middle.
      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by nafoo Click here to enlarge
        Props Click here to enlarge
        Tks bu no props, rep me so I can get back some of the rep points. Loss from Joe's hand!!!
      1. nafoo's Avatar
        nafoo -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        Tks bu no props, rep me so I can get back some of the rep points. Loss from Joe's hand!!!
        When I said props I meant reps Click here to enlarge
      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by nafoo Click here to enlarge
        When I said props I meant reps Click here to enlarge
        All good! Come on Joe give back what you took away!!!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        All good! Come on Joe give back what you took away!!!!!
        I don't believe in welfare or reparations.
      1. pcockley's Avatar
        pcockley -
        Click here to enlarge Originally Posted by 335(ex)(eye) Click here to enlarge
        +1

        now that jrcart is not in this thread is awesome, so much less jiber jaber bologna
        noooooooo say it aint sooooooo

        I love this thread and the back and forth between sticky and jrcart sooooo entertaining Click here to enlarge

        this thread went off the DCT rails a long long long time ago.

        I do await the engine build thread though!
      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't believe in welfare or reparations.
        You are a true example of take, take, take.

        Do you really think I need your welfare...actually you know what, fuk u.