• 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. TrippinBimmer's Avatar
        TrippinBimmer -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        pretty sure if you would have mentioned adding it to the trans, it wouldnt be a far of assumption Click here to enlarge
        yeah but how kewl would it be Click here to enlarge Vroom Vroom. Cookies shoots out Click here to enlarge
      1. oldgixxer's Avatar
        oldgixxer -
        Car ready yet?
      1. ultimateendz's Avatar
        ultimateendz -
        dont think so
      1. klipseracer's Avatar
        klipseracer -
        I'm waiting for the scion dyno graph....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by klipseracer Click here to enlarge
        I'm waiting for the scion dyno graph....
        Oh and why is that? Because I'm unfor and just pulling things out of thin air? Seriously, get out of here with this crap.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by oldgixxer Click here to enlarge
        Car ready yet?
        Wouldn't I say so right away?
      1. BuraQ's Avatar
        BuraQ -
        Yup, adaptation for the DCT to relearn, nice. I will be joining you soon
      1. benzy89's Avatar
        benzy89 -
        Dear S65 Gods -- Please get this car running ASAP so it can demolish the ESS nonsense

        http://www.m3post.com/forums/showthread.php?t=778237
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Dear S65 Gods -- Please get this car running ASAP so it can demolish the ESS nonsense

        http://www.m3post.com/forums/showthread.php?t=778237
        Heh, cute.

        Retards over there, guy saying he hasn't "heard" of anyone putting out more power when we all know a YSI blown M3 crushed those numbers a long time ago and another guy saying someone should build a DCT. I just can't stand reading that forum.
      1. klipseracer's Avatar
        klipseracer -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Oh and why is that? Because I'm unfor and just pulling things out of thin air? Seriously, get out of here with this crap.
        relax man you are just an easy target to piss off lol. I like your project so calm down. Mostly interested in your DCT work which I admire. You're inability to differentiate between sarcasm and reality amazes me. So to make it crystal, i'm teasing you 90% of the time.
      1. GetSomeE92's Avatar
        GetSomeE92 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Well it's going to be a while longer. Not going to get into it but on the bright side I get to change something I wanted to change.
        Dry sump oil system?
      1. Legionofboom's Avatar
        Legionofboom -
        sticky stay calm we all love you
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by klipseracer Click here to enlarge
        relax man you are just an easy target to piss off lol. I like your project so calm down. Mostly interested in your DCT work which I admire. You're inability to differentiate between sarcasm and reality amazes me. So to make it crystal, i'm teasing you 90% of the time.
        I have a pretty good ability at differentiating sarcasm considering how often I use it. I read a lot of posts and don't particularly pay attention to your specific tones. Regardless, I don't find a comparison to unfor funny.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by GetSomeE92 Click here to enlarge
        Dry sump oil system?
        No, that will come later as it will be another $8k or so on top.
      1. blkclk550's Avatar
        blkclk550 -
        meeeeeeeeeeeehhhhhhhhhhhhhh
      1. Sticky's Avatar
        Sticky -
        It will be done in January guys. I'm just waiting on one thing. It will all be worth the wait, trust me.
      1. DavidV's Avatar
        DavidV -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        No, that will come later as it will be another $8k or so on top.
        Dry sump is totally useless for driving in a straight line
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DavidV Click here to enlarge
        Dry sump is totally useless for driving in a straight line
        To a certain degree I agree with you.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        To a certain degree I agree with you.
        I really don't even think one is needed. I've seen m3's at Big willow all the time and they hit massive G's on turns that stick for a while. Some turns are about 8 seconds long and they haven't had any oil starvation/pumping problems. The only problem i've seen on ALL of them, yes ALL. Power steering fluid loves to overheat and just leaks from the cap, gotta have a towel around it and ziptied. I think you're cool to just leave that as is. Just get the damn car already Joe!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        I think you're cool to just leave that as is. Just get the damn car already Joe!
        Called Alex today I think January should be good. I'll have a better idea Monday. I'm going to Vegas late January so I'd like to take my car...