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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. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by c32AMG-DTM Click here to enlarge
        To get the replacement part, correctly measured, functioning properly and in-spec... it's already been 10+ days since your visit and it sounded like it was discovered earlier - is this critical part a complex one as well?

        For this to be fixed and up and running... are you looking at weeks? Months?

        I'd bet it's frustrating - hopefully some updates soon.
        I'm not frustrated it's coming along. When it's done, it's done.

        Nobody else is even addressing this piece of the puzzle. The fabricator is producing the new pieces they may already be in.
      1. fastgti69's Avatar
        fastgti69 -
        I want to race you when your car is ready.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        I want to race you when your car is ready.
        That's fine, good luck! Click here to enlarge
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        That's fine, good luck! Click here to enlarge
        Just for $#@!s and giggles. You'll have a low boost setting right Click here to enlarge
      1. SSO95's Avatar
        SSO95 -
        I haven't read the whole thread, but I know your car was under the knife for quite awhile, but perfection takes time. Not trying to take shots at you, but do you have an ETA on your build? Either way, can't wait to see the results.
      1. Sticky's Avatar
        Sticky -
        Probably a month.

        I'm just going to start saying when it's done.

        Click here to enlarge
      1. inter1032's Avatar
        inter1032 -
        cant believe i havent seen you on the news yet for shooting up a car shop lol
      1. Sticky's Avatar
        Sticky -
        I'm patient and know it is in their best interest to complete the car. It will be done relatively soon. It isn't a big deal and then it will be time to go hunting.

        The time is going to fly by especially with all the things I have planned to do over the summer.
      1. singletrack's Avatar
        singletrack -
        "two weeks"

        -Contractor in the "Money Pit".

        Honestly, the involved shops are beginning to embarrass themselves IMHO.

        Hoping things go smoothly for you though.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by singletrack Click here to enlarge
        "two weeks"

        -Contractor in the "Money Pit".

        Honestly, the involved shops are beginning to embarrass themselves IMHO.

        Hoping things go smoothly for you though.
        If you can name 1 BMW shop that has done this faster I'm all ears.
      1. singletrack's Avatar
        singletrack -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        If you can name 1 BMW shop that has done this faster I'm all ears.
        Well we both know that is a loaded question. : )

        I don't think this is the timeline you discussed with them originally is it? If so, then ignore my last comment.

        Honestly, all I want to see is your car back on the road and you enjoying it. Not trying to create drama. Hate drama. Like checking fools that create it. Don't want to be that dude. ; )
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by singletrack Click here to enlarge
        Well we both know that is a loaded question. : )

        I don't think this is the timeline you discussed with them originally is it? If so, then ignore my last comment.

        Honestly, all I want to see is your car back on the road and you enjoying it. Not trying to create drama. Hate drama. Like checking fools that create it. Don't want to be that dude. ; )
        There really wasn't a timeline as different companies were involved. Did it go longer than estimate for the trans? Yes.
      1. DarkPhantom's Avatar
        DarkPhantom -
        A good time waster would be to go in this thread and compile all the quotes from people asking when the car will be done into one post.

        NOT IT.
      1. s62's Avatar
        s62 -
        Not gonna be driving in anger anytime soon will it?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by s62 Click here to enlarge
        Not gonna be driving in anger anytime soon will it?
        Soon enough.
      1. klipseracer's Avatar
        klipseracer -
        Sticky, mind pointing me to a post where you have addressed programming the tcu for the ssp clutch pack. Think I've missed it. I'm a dct fan, so I'm curious how its been resolved.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by klipseracer Click here to enlarge
        Sticky, mind pointing me to a post where you have addressed programming the tcu for the ssp clutch pack. Think I've missed it. I'm a dct fan, so I'm curious how its been resolved.
        The programming for the DCT is something still being worked on.
      1. klipseracer's Avatar
        klipseracer -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        The programming for the DCT is something still being worked on.
        by who and what is the progress?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by klipseracer Click here to enlarge
        by who and what is the progress?
        By Gintani and apparently they are ready to go.
      1. s62's Avatar
        s62 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        By Gintani and apparently they are ready to go.
        Who is doing it for Gintani?