Close

    • 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. ChrisN54's Avatar
        ChrisN54 -
        -DEFIVfab- //M diff-lockdown?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by PEI330Ci Click here to enlarge
        Twin Turbo w/nitrous?
        Heh, would be nice Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ChrisN54 Click here to enlarge
        -DEFIVfab- //M diff-lockdown?
        This would not add an extra 2-3 months.
      1. crazylegs's Avatar
        crazylegs -
        I'm not sure if you have mentioned this or not sticky, but what is the rev limit going to be on your build?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by crazylegs Click here to enlarge
        I'm not sure if you have mentioned this or not sticky, but what is the rev limit going to be on your build?
        Stock.
      1. NikB316's Avatar
        NikB316 -
        Just read through some of this and verrrrry interesting!
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Hey bro, anything new on the project?
      1. lulz_m3's Avatar
        lulz_m3 -
        Is the S65 the new twojayz?
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        Is the S65 the new twojayz?
        Almost -- It is a closed deck, just held back by that aluminum construction. And that whole V8 vs. I6 thing too
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 0-60Motorsports Click here to enlarge
        Hey bro, anything new on the project?
        I don't know but they better be just about done. Will call tomorrow.
      1. MisterEm's Avatar
        MisterEm -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't know but they better be just about done. Will call tomorrow.
        Do tell what they say!
      1. DevJ's Avatar
        DevJ -
        Click here to enlarge Originally Posted by MisterEm Click here to enlarge
        Do tell what they say!
        I'm curious to hear as well. Either way, I hope you get your car soon!
      1. ersin's Avatar
        ersin -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        ... they better be just about done...
        That's like, the understatement of the decade.


        Cheers.
      1. leo985i's Avatar
        leo985i -
        Did you call? Any updates? It's hard to understand how this car is still down. Unless they are trying to make a black hole with the engine. I just dont get it....
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by leo985i Click here to enlarge
        Did you call? Any updates? It's hard to understand how this car is still down. Unless they are trying to make a black hole with the engine. I just dont get it....
        So much power, it'll rip a hole in the space time continuum
        Attachment 26223
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't know but they better be just about done. Will call tomorrow.
        I just called my guy in Vegas, they are posting odds on whether or not your car will be done in the next two weeks. I am going to go with NO.
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        So much power, it'll rip a hole in the space time continuum
        Attachment 26223
        Time, Time and More Time Continuum would be more accurate for this build.
      1. ultimateendz's Avatar
        ultimateendz -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        Time, Time and More Time Continuum would be more accurate for this build.
        Lol
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        I just called my guy in Vegas, they are posting odds on whether or not your car will be done in the next two weeks. I am going to go with NO.
        Man, you have your own guy that knows about Stickys' car. lol joking. In all seriousness that kinda blows..
      1. JRCART's Avatar
        JRCART -
        He posted on Monday that he would be calling them for an update "tomorrow" which was yesterday, it is now Wednesday evening and nothing mentioned by Sticky as to how his phone call went, in a situation like this, no news is bad news lol.