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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. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by lughed Click here to enlarge
        $#@!, maybe i should refrain from my last statement...
        Yes, Gintani is talking about 900 crank hp, that's under 750whp by my calculations. My C BS is putting down 660whp in street trim with a conservative pulley on 10-11psi boost. My motor can withstand 15-16psi so you do the math.

        I love how Sticky keeps diverting back to my C BS for a race, the only race he is getting is with my CLK and I am going to have GoPro's all over my vehicle to record the slaughter and then I will edit the video by inserting screen shoots of several of Sticky's quotes where he talks about spanking my CLK.

        .....36 + months for under 750whp LOL Click here to enlarge
      1. ultimateendz's Avatar
        ultimateendz -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        Im in south Florida waiting for you and seem to have you hook, line, and sinker

        do you hit up PBIR at all? If so im sure youve seen one of my fellow Vs that run 9 sec passes all day everyday....you should run him....the guys name is manny...
      1. Ak335i's Avatar
        Ak335i -
        Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
        do you hit up PBIR at all? If so im sure youve seen one of my fellow Vs that run 9 sec passes all day everyday....you should run him....the guys name is manny...
        ive seen that beast out there sick sick sick...
      1. JRCART's Avatar
        JRCART -
        It's Thursday afternoon of "next week", any news, do we have combustion?
      1. JRCART's Avatar
        JRCART -
        If least week was this week and this week is next week, what does that make next week?

        Sticky, Gintani? Anyone care to chime in?
      1. Black Sheep's Avatar
        Black Sheep -
        Call them up
      1. Black Sheep's Avatar
        Black Sheep -
        You should have there number in your favorites by now
      1. DevJ's Avatar
        DevJ -
        I follow gintanis fb page. Looks like they're dropping the engine in today!
      1. AlexQuattro's Avatar
        AlexQuattro -
        Click here to enlarge Originally Posted by JRCART Click here to enlarge
        It's Thursday afternoon of "next week", any news, do we have combustion?
        You are worse than a hooker that doesn't understand that you don't want a bj.
      1. Black Sheep's Avatar
        Black Sheep -
        Lol
      1. rooringhusky's Avatar
      1. LZH's Avatar
        LZH -
        The $#@! is he spraying in there ? Guess after 3 years alot of dust has collected in that lonesome engine bay lol.
      1. rooringhusky's Avatar
        rooringhusky -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        The $#@! is he spraying in there ? Guess after 3 years alot of dust has collected in that lonesome engine bay lol.
        Lol guessing its water....Id go ape $#@! if they sprayed my car like that tho haha....you better hand wipe my $#@!!

        Good to see progress finally! Click here to enlarge
      1. RnmEvo9's Avatar
        RnmEvo9 -
        Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
        do you hit up PBIR at all? If so im sure youve seen one of my fellow Vs that run 9 sec passes all day everyday....you should run him....the guys name is manny...
        That black monster is a reason I want to jump into a CTSV. Its consistent and fast as $#@!. Click here to enlarge
      1. ecampbell's Avatar
        ecampbell -
        Click here to enlarge Originally Posted by ultimateendz Click here to enlarge
        do you hit up PBIR at all? If so im sure youve seen one of my fellow Vs that run 9 sec passes all day everyday....you should run him....the guys name is manny...
        Never been there. How does the V do on a road course?
      1. ecampbell's Avatar
        ecampbell -
        So I know nothing about gintani but I see on the facebook page they are tuning an SLS and a CLS

        Perhaps instead of completing Joe's build they are now switching to Merc.
      1. LostMarine's Avatar
      1. ultimateendz's Avatar
        ultimateendz -
        Click here to enlarge Originally Posted by ecampbell Click here to enlarge
        Never been there. How does the V do on a road course?

        not bad actually...not bad at all...its actually monticellos official road course car
      1. ultimateendz's Avatar
        ultimateendz -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        That black monster is a reason I want to jump into a CTSV. Its consistent and fast as $#@!. Click here to enlarge

        yup....very consistant
      1. JRCART's Avatar
        JRCART -
        Click here to enlarge Originally Posted by LZH Click here to enlarge
        The $#@! is he spraying in there ? Guess after 3 years alot of dust has collected in that lonesome engine bay lol.
        LMAO...probably some racoon family living up in there.