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Thread: SMEC to SBEC Adapter

  1. #1
    Supporting Member Turbo Mopar Contributor
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    SMEC to SBEC Adapter

    Hello All,
    I just finished assembling and testing my SMEC to SBEC adapter so I can test SMEC in my SBEC based 87 CSX.
    https://youtu.be/00Ufu5ZtvHM
    Last edited by chromguy; 12-23-2021 at 03:03 PM.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  2. #2
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: SMEC to SBEC Adapter

    Very cool. Did you use anther sbec board to create an intermediate connection?

  3. #3
    Supporting Member Turbo Mopar Contributor
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    Re: SMEC to SBEC Adapter

    Quote Originally Posted by cordes View Post
    Very cool. Did you use anther sbec board to create an intermediate connection?
    During my SBEC reverse engineering project, I need to remove all components from the board including the 60 way.
    here is a picture during assembly
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  4. #4
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: SMEC to SBEC Adapter

    Very cool. I really appreciate the content you post. There has been a lot of good stuff lately.

  5. #5
    Supporting Member Turbo Mopar Contributor
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    Re: SMEC to SBEC Adapter

    Quote Originally Posted by cordes View Post
    Very cool. I really appreciate the content you post. There has been a lot of good stuff lately.
    Thank you Brian
    a few items I am working on
    1)SBEC schematic with component identification. From a repair prospective...nearly complete. Just need to write a wee bit of documentation.
    2)the above but SMEC--50% of the input/output circuits on the logic board are analyzed. I do need a defective power board, which I may have.
    3)the above but SBEC2 this is way more complex as there are at least three different SBEC2 used for turbo applications.
    4)Use V6 SBEC and/or SBEC2 for turbo applications. We have a working example but need road testing logging etc.

    Maybe list
    A) replace processor on SBEC2 and use a modern processor. For example, perhaps use a Teensy 4.X on a small daughter board and then use Speeduino as the base. The challenge here is the 3.3V digital limit on old 5V hardware. This will likely be just for fun

    I would like to find a few more people to help on the electronics side, but the pay sucks (volunteer including me).LOL
    Thanks goes to those who helped in 2021.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  6. #6
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: SMEC to SBEC Adapter

    cool. nice adapter.

    teenySBEC would be pretty cool though you still have the 30 year old wiring.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  7. #7
    turbo addict
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    Re: SMEC to SBEC Adapter

    I believe the G/J digital dash pin outs were/are backwards too

  8. #8
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: SMEC to SBEC Adapter

    Quote Originally Posted by Aries_Turbo View Post
    cool. nice adapter.

    teenySBEC would be pretty cool though you still have the 30 year old wiring.

    Brian
    I’m to the point where I could make a new harness pretty easily. I have the tools. I just need the kick in the pants to do it from a cheap and well supported ecu. It will be a while before that happens, I’m sure.

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