Barett Strecker' of Contrive Design's MS3 AWD Kit!

Discussion in 'Contrive Design Innovations' started by Barett@ContriveDesignInnovations, Sep 19, 2024.

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  1. dinnerplate

    dinnerplate Platinum Member

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    Interesting. A tried and true combination of the CX-7 rear end, speed6 drive train and speed3 suspension, but with some very meaningful parts added. Love the wheel speed trigger ring design. I was following your posts on CS a while ago when you had just started this up on your own car.

    I've seen people swap the entire rear end of an RS onto the speed3, was this something you considered as well? Speed parts in good condition are a finite resource after all.

    For the mid chassis bracket, is it designed as a brace that would take the place of say a tb performance chassis brace? Or is it designed like the Mazda OEM bracket that doesn't really do much in terms of bracing and just more of a shield? Could a chassis brace be used in addition to your bracket you've designed?

    What is the AWD controller solution? Moreover, is the power split constant 50/50, or does it vary like a speed6 would? Or is this something you leave to the user to tune for?

    Unfortunately not a product I can stomach buying right now, though if it were I definitely would get in. Is there any plans to release this in the future if the group buy goes well, or is it a one time buy in?

    Sorry for the question bombing.
     
  2. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Replying to @dinnerplate

    The RS rear end was considered but avoided for a few reasons:
    1) gear ratio....I never got to a point to validate this but my guess was the gear ratios were different and would require a gear change which would have been expensive and difficult to make happen
    2) controlling would have been more difficult with the newer tech of the RS diff vs the very basic MS6/CX7 diff
    3) the lug pattern is 5x108mm vs out standard 5x114.3mm so that would have required a hub change or adapter spacers...
    4) the RS was also produced in very low numbers and was a much more expensive and exclusive car so I'd guess sourcing parts from it would be equally if not more difficult process.

    The carrier bearing mount is 0.188" steal so I would imagine it adds some strength but I can't say how much.

    Current AWD controller is an ON/OFF switch which gives you 100/0 F/R or 50/50 F/R torque split. I am working on a PWM controller that would give more control inbetween and allow some slip.

    All good questions and I appreciate the kind words!
     
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  3. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Friendly reminder to everyone on this thread that cutoff date is October 3rd.
     
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  4. RyGuyv

    RyGuyv Silver Member

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    Im in! Now to find a Gen Pu.
     
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  5. Rokusek

    Rokusek Are you my dad? Motorhead Platinum Member

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    What is your official count for this right now?
     
    Rokusek, via a mobile device, Oct 2, 2024
    #25
  6. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    We have more than exceeded my goal for 20 kits and will be moving forward!
     
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  7. Rokusek

    Rokusek Are you my dad? Motorhead Platinum Member

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    Outstanding!
     
    Rokusek, via a mobile device, Oct 2, 2024
    #27
  8. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Hey RyGuyv, pretty sure I just sent you an email to confirm some information with! Awesome to see you here!
     
  9. Mtnbker3531

    Mtnbker3531 Greenie Member

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    I'm looking to sell mine I have a build thread here. I'd love it if someone took care of it and made it AWD
     
    Mtnbker3531, via a mobile device, Oct 4, 2024
    #29
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  10. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Now this is what I call teamwork
     
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  11. Devinthedood

    Devinthedood Silver Member

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  12. Raider

    Raider Administraider Administrator Platinum Member

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    Nice. Snuck in as he let his beard recharge.
     
    Raider, via an iPhone, Oct 5, 2024
    #32
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  13. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Hell Ya Devin! Pretty sure we have met, but if not now we have to! Thank you
     
    Last edited: Oct 5, 2024
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  14. DADventures

    DADventures Greenie N00B Member

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    So many levels of awesome in this thread! Congrats to the OP and lucky owners going AWD. I would love to do this to my Speed3 but poor timing with young ones and limited extra time/garage space. Maybe in the near future if they're still being offered, one can hope.
     
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  15. Jspeedy6

    Jspeedy6 Greenie N00B Member

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    I have a question since you figured this out can the next project be making a reliable rwd solution for the speed 6 I’ve seen some people do it but it’s not perfect or the most reliable
     
    Jspeedy6, via an iPhone, Oct 26, 2024
    #35
  16. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Remove the front axles
     
  17. AWD Speed 3

    AWD Speed 3 Greenie N00B Member

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    Hi Im new on here so I’m having trouble trying to figure out how to dm you but I’ve got an awd speed 3 that is desperately in need of your wheel speed sensor. The speedometer occasionally doesn’t work and theres no abs and I’m having traction issues because my dsc isn’t working so i just spin my front wheels. Please let me know if I can order the parts needed to get my awd setup working. I’ve currently got the cx7 open rear diff but i already have a speed 6 rear diff to install once i get the rest of what i need.
     
    AWD Speed 3, via an iPhone, Nov 16, 2024
    #37
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  18. Barett@ContriveDesignInnovations

    Barett@ContriveDesignInnovations Grass-Roots Vendor Gold Member

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    Send me an email to barett@contrive.design
     

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