No announcement yet.

Kadunza S54 ITB Adapter Plate Project

  • Filter
  • Time
  • Show
Clear All
new posts

    Kadunza S54 ITB Adapter Plate Project

    Been working on this for some time now and I'm finally pleased to post this up since it seems that is finally taking off in a direction I am happy with.

    The basic idea is that you can purchase a set of S54 ITBs and this plate will allow you to bolt them on using all OEM parts. This way you can always get gaskets and replacement parts direct from the a BMW dealer or an OEM BMW parts distributor.

    Key Benefits:

    - Replacement Parts are all OEM BMW Parts (no proprietary gaskets or installation parts)
    - Correct Fuel Injector Angle Placement (for Optimal Fuel Atomization)
    - Affordable (average cost of a complete kit with tune & S54 ITBs should be ~$1600)
    - Option to purchase just the adapter plate or in Plug & Play kits

    Alpha ver.

    The first plate was a bust. The injector angle and ITB angle was all wrong and the stock injector harness fit way to tight against the valve cover.
    (Sorry for the crappy phone pics)

    Rev. 1

    So we went back to the drawing board to make sure we modeled the injector angle as close to stock S54 specification as possible.

    (Maker Bot Test Model)


    And we now have a worth prototype...

    At the moment we are designing the throttle cable linkage / ICV mount. I will post pics once we have some. After that we will be designing a single intake plenum friendly to E36s as well as E30 24v swap cars.

    After that the next phase it to mount it up to a few different cars and work with TRM to fab up some tunes.

    I will continue to update the thread as it progresses.

    EDIT: Please do not blow up my PM box with requests and questions right now. I promise I will keep everyone updated and post notification once they are available to purchase.
    Last edited by CorvallisBMW; 04-09-2014, 12:24 PM.


    for, uh, reasons.
    cars beep boop


      Wow! Really Nice work! Always amazed to see such nice new products for our old cars!
      E30 now S52
      2008 Suburban LTZ (Family and TT hauler)
      325xiT (Sold)



        Nice! I hope to see Art running this on his S52 haha!

        Originally posted by SpasticDwarf;n6449866
        Honestly I built it just to have a place to sit and listen to Hotline Bling on repeat.


          Projects Hartge,Alpina & AC Schnitzer Builds.

          DSC04926 by Raul Salinas, on FlickrDSC03413 by Raul Salinas, on Flickr


            fucking sub'd. thank you raul.

            Gigitty Gigitty!!!!

            88 cabrio becoming alpina b6 3.5s transplanted s62
            92 Mtech 2 cabrio alpinweiss 770 code
            88 325ix coupe manual lachsilber/cardinal
            88 325ix coupe manual diamondschwartz/natur
            87 e30 m3 for parts lachsilber/cardinal(serial number 7)
            12 135i M sport cabrio grey/black


              24V only?
              1989 325iC Zinnoberrot


                Sweet... would be interested in just the plate and throttle bodies


                  i recommend putting the adapter with a head and a runner on the flow bench, there are easy gains getting the transition and alignment between runner and head sorted.
                  the difference between a good adapter and poor one is 10-15whp. i'm not familiar with the real estate you have and other practicalities but the longer the adapter the better the transition will be. it will also make the runner volume smaller which is good when you have big throttles
                  89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

                  new build thread



                    91 Alpinweiss2 318is OBD2 S52


                      cool project
                      E30 325i Touring currently under construction.



                        Turbo M42 Build Thread :Here
                        I like the tuna here.
                        Originally posted by lambo
                        Buttchug. The official poster child of r3v.




                            if this was available for a m20 i would be inclined to swap one into the 2002


                              wow....definitely interested to see how this pans out
                              1989 325i
                              1988 M3
                              1987 325ic
                              2001 330ci
                              2001 M3