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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. fastgti69's Avatar
        fastgti69 -
        Man, that thing looks great. I can't wait till its done.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Man, that thing looks great. I can't wait till its done.
        You can't wait? YOU CAN'T WAIT?
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        You can't wait? YOU CAN'T WAIT?
        Click here to enlarge I want a ride when it's done. I shoulda asked Alex when he's gonna finish your car up. How could I forget when I was with him on saturday...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Click here to enlarge I want a ride when it's done. I shoulda asked Alex when he's gonna finish your car up. How could I forget when I was with him on saturday...
        Just messing, I can't wait man. I don't know how I have gone this long. I would rather give up sex for a year at this point.

        Alex is on his way to China or something and he said they would have the motor in by the end of the week. So then I guess SSP will need to come out to figure out where to put their cooler/lines at around the same time of the SC install. Then tuning... man I can't wait!

        I just hope it all goes smoothly. The thought of having a built motor SC DCT M3 is just... awesome.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Just messing, I can't wait man. I don't know how I have gone this long. I would rather give up sex for a year at this point.

        Alex is on his way to China or something and he said they would have the motor in by the end of the week. So then I guess SSP will need to come out to figure out where to put their cooler/lines at around the same time of the SC install. Then tuning... man I can't wait!

        I just hope it all goes smoothly. The thought of having a built motor SC DCT M3 is just... awesome.
        Hell yea, even if it wasn't supercharged. Having a built motor is just balls of steel by itself lol. And you have the tranny built and you throwing a fat SC on it. This thing will move when the tuning is finished. MOVE.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge
      1. fastgti69's Avatar
        fastgti69 -
        LMFAO, that is genius! I love that
      1. Yukohama's Avatar
        Yukohama -
        man can't wait for this to finally be done with LOL and breaking records Click here to enlarge
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Looking forward to seeing this completed Brother. SSP and Gintani = Performance Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 0-60Motorsports Click here to enlarge
        Looking forward to seeing this completed Brother. SSP and Gintani = Performance Click here to enlarge
        Thanks Ejaz, me too. Plus I just want to shut my friends up. I have one with an EVO with bolt on's who has been running his mouth. Can't wait to see the look on his face when I dust him.
      1. DavidV's Avatar
        DavidV -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Yes, I just need to write it and put up the photos. Maybe tonight... maybe.
        Having your car back this year would make for a very nice Christmas present Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DavidV Click here to enlarge
        Having your car back this year would make for a very nice Christmas present Click here to enlarge
        And birthday...
      1. 0-60Motorsports's Avatar
        0-60Motorsports -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Thanks Ejaz, me too. Plus I just want to shut my friends up. I have one with an EVO with bolt on's who has been running his mouth. Can't wait to see the look on his face when I dust him.
        LOL Nice! Cant wait to see that video Click here to enlarge
      1. LostMarine's Avatar
        LostMarine -
        Holy $#@!! A real update!?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        Holy $#@!! A real update!?
        Ha.. Ha..
      1. DavidV's Avatar
        DavidV -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        This is the DCT cooler that was mounted by SSP up front.
        Mmm, did they not know you were SC this car? Someone must have known...
        Why else would you have had the tranny done...
        So, ETA of the finished car? Any ideas?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DavidV Click here to enlarge
        Mmm, did they not know you were SC this car? Someone must have known...
        They just didn't know that is where Gintani mounted the aftercooler. My SC was sold before they got the car so it was removed.

        Click here to enlarge Originally Posted by DavidV Click here to enlarge
        So, ETA of the finished car? Any ideas?
        Yes, as stated in the article, later this month hopefully.
      1. flipm3's Avatar
        flipm3 -
        Great update!! On the bright side, despite it being Winter, you still have nice weather over there on the West Coast to enjoy your soon to be monster M3!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by flipm3 Click here to enlarge
        Great update!! On the bright side, despite it being Winter, you still have nice weather over there on the West Coast to enjoy your soon to be monster M3!
        Oh ya, I don't even really pay attention to the seasons. All I know is now is a better time to drag race and the pool isn't as warm.
      1. Jimefam's Avatar
        Jimefam -
        Glad to see some progress but 3 months for seals? and there just basic round seals! No wonder it took so long, give them this company they can usually have it to you in a week. www.ctgasket.com