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Thread: Dual Quad Intake Conversion To Dual 2-BBL Throttle Bodies

  1. #51

    98Dak408's Avatar
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    As usual, nice work. How did you keep the drill from walking with that angle piece where the bolt goes through? Mill a flat, spot drill, then use a drill bit?
    That's how I was going to do it. However, with both the injector bungs and bolt bosses, I found my center and plunged it with a closed center end mill.

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    Quote Originally Posted by 98Dak408 View Post
    That's how I was going to do it. However, with both the injector bungs and bolt bosses, I found my center and plunged it with a closed center end mill.
    Hey, that'll work too.
    The Dakota RT is gone... but not forgotten.

    '15 Granite Crystal Metallic SRT 392.

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    Great work as usual Richard...wow!

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    Great work as usual Richard...wow!
    Thanks Russ. I'll try to keep plugging away at it and get it finished.

  5. #55

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    Cut the plenum down. I didn't worry about the leveling the platform since I'm not concerned with carburetor floats. It doesn't matter with a TB and it also equalizes the distance to the runners front-to-back. It’s about 7/8" taller than the 2-bbl M1 now.


    Unmodified Plenum

    Modified Plenum

  6. #56

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    Just finished the adapter plates for the 2-bbl throttle bodies. I have the option of using 4-bbl TBs also but the 2-bbl will more than suffice. Now I have to cut lengths of solid aluminum round stock for the manifold bolt bosses and get this sucker welded.




  7. #57



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    Quote Originally Posted by 98Dak408 View Post
    Just finished the adapter plates for the 2-bbl throttle bodies. I have the option of using 4-bbl TBs also but the 2-bbl will more than suffice. Now I have to cut lengths of solid aluminum round stock for the manifold bolt bosses and get this sucker welded.



    Damn...I'm scraping off carpet, and you're reinventing the wheel...Nice job!
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  8. #58
    sox amigo

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    i like what you have done so far. great job. pride got to love it!
    <img src=images/smilies/worky.gif border=0 alt= title=Worky class=inlineimg />

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    Damn...I'm scraping off carpet, and you're reinventing the wheel...Nice job!
    i like what you have done so far. great job. pride got to love it!
    Thanks guys!

    Might be time for a cam upgrade.

  10. #60
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    Pretty nuts Richard! A lot of props to you!

  11. #61

    DRTC #311

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    Quote Originally Posted by 98Dak408 View Post
    Yeah that would be great if you could. Thanks!
    i think alan is talking about a step-up transformer.... if you know what kinda specs you're looking for, pick one out from here and i'll look up my price (i work for a distributor) and pass it along:

    http://www.solahd.com/products/transformers/Index.htm

    pete

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    Looking good!

    '99 R/T- MSIIextra fuel/spark/idle, ZCP mx422 supercharged, ZCP Tbrake 727, PPC 10" 3800, 4.10, (\/) Headers, 2.5" Duals, Truetrac, Boyd Timeless 6's, Hotchkis TVS.
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  13. #63



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    Quote Originally Posted by Pete102580 View Post
    i think alan is talking about a step-up transformer.... if you know what kinda specs you're looking for, pick one out from here and i'll look up my price (i work for a distributor) and pass it along:

    http://www.solahd.com/products/transformers/Index.htm

    pete
    That's pretty much the same, just a newer version.

    I forgot to take the pics, but I did look and couldn't find a manufacturer or a p/n. It's probably just as well. Mine's probably full of PCB's.
    Alan Short
    D.R.T.C. #15


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    i think alan is talking about a step-up transformer.... if you know what kinda specs you're looking for, pick one out from here and i'll look up my price (i work for a distributor) and pass it along:

    http://www.solahd.com/products/transformers/Index.htm

    pete
    Thanks Pete! I appreciate your help. I'll read up on this.

    That's pretty much the same, just a newer version.

    I forgot to take the pics, but I did look and couldn't find a manufacturer or a p/n. It's probably just as well. Mine's probably full of PCB's.
    Today 12:48 PM
    Thanks just the same.

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    Pretty nuts Richard! A lot of props to you!
    Looking good!
    Thanks! Slowly getting there.

  16. #66

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    are you doing progressive linkage, or having them both work equally ?

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    are you doing progressive linkage, or having them both work equally ?
    I intend on a linkage that allows for 1:1 and progressive so it can be tuned for what works best.

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    Quote Originally Posted by 98Dak408 View Post
    I intend on a linkage that allows for 1:1 and progressive so it can be tuned for what works best.
    I'd imagine that a 2 TB tip-in would be hell for the PCM to manage. But then again, running on one, most of the time, doesn't seem like it would allow for even air flow to all cylinders. I'm really interested to see how you work that out. Good luck with it.

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    I'd imagine that a 2 TB tip-in would be hell for the PCM to manage. But then again, running on one, most of the time, doesn't seem like it would allow for even air flow to all cylinders. I'm really interested to see how you work that out. Good luck with it.
    Thanks!

    In regard to air flow, some of the Chevy EFI intakes have one throttle body at the front of the manifold and it appears to function well. I also recently met a Ford guy who modified a dual quad tunnel ram for EFI. He fabricated a ram log with the one throttle body at the front and it runs well. F&B has a six-pack TB set up that runs primarily off one TB with a progressive linkage. So I think I have a fair chance of success with mine. It's a matter of setting it up properly and being able to adjust and tune it. I have an SCT tune so that end of things can be adjusted.

  20. #70

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    Quote Originally Posted by 98Dak408 View Post
    In regard to air flow, some of the Chevy EFI intakes have one throttle body at the front of the manifold and it appears to function well. I also recently met a Ford guy who modified a dual quad tunnel ram for EFI. He fabricated a ram log with the one throttle body at the front and it runs well. F&B has a six-pack TB set up that runs primarily off one TB with a progressive linkage. So I think I have a fair chance of success with mine. It's a matter of setting it up properly and being able to adjust and tune it. I have an SCT tune so that end of things can be adjusted.
    I completely agree. My Cuda's 6 pack runs off the center carb, and the outboard carbs are vacuum operated. Plus, when you are at low-load and part throttle, the incoming air has plenty of time to work it's way to the far end of the manifold. When you stomp on it, they both open fully so you don't have to worry about an uneven air distribution. I have a friend with a Henry J that has a small block chevy with dual four barrels on a tunnel ram. He runs a progressive linkage without any issues

    Drops panties faster than any R/T

  21. #71

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    I just produced two 50mm throttle bodies for a couple of guys. Just had to set ‘em on the intake for a visual.


  22. #72

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    All its missing is a old school Hilborn style scoop.

  23. #73

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    All its missing is a old school Hilborn style scoop.
    LOL. Yeah. Too bad it won't fit.

  24. #74

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    Quote Originally Posted by 98Dak408 View Post
    LOL. Yeah. Too bad it won't fit.
    Could always fab up a bug catcher like the ones in Mad Max... LOL

  25. #75

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    Could always fab up a bug catcher like the ones in Mad Max... LOL
    There ya go! LOL.

    http://archive.meguiarsonline.com/ga...madmax_car.jpg

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