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Thread: Dual carbs???

  1. #1

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    Dual carbs???

    Co-worker of mine said he use to dual carb the first gens? I asked him how and he said they use have kits for that. Is this true? A dual carb MM would be awesome.

  2. #2

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    The dual carbs kits a hard to fine now but a lot of people are using motorcycle carbs now,



    http://www.youtube.com/watch?v=gFunG5Ku-fI
    http://www.youtube.com/watch?v=4Zm7EecMZKs
    http://www.youtube.com/watch?v=YHNAZqTAiLY

  3. #3

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    pretty awesome, hows it run? 2.0l, 2.6l?

  4. #4


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    I thought about this before buying a intake and carburetor but everyone said they’re hard to adjust.
    That isn’t so, you can adjust the power band and get rid of that lag at idle to WOT.
    To synchronize the carburetors you need a manometer to equalize the vacuum or you'll get a rich lean condition.
    Great example, This guy made his and there are many more video's out there
    Last edited by Rickdees; 09-22-2013 at 08:15 PM.

  5. #5

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    That's sweet, always wondered about ow to sync up carbs but never had to actually do it so I never actually looked into it. I think I will fab up a custom manifold for a dual carb set up eventually. For now I am just fixing things here and there.

  6. #6

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    What are the advantages of dual carbs? And what size carbs are you using on that setup?

  7. #7

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    the idea is simple, more air more fuel more power. As far as what size carbs I don't know yet. Still brainstorming.

  8. #8

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    I have a manifold for a dual carb set up for an Astron, I took the carsb and rebuilt them to use on my 1.6 in my Colt...

    https://sphotos-b.xx.fbcdn.net/hphot...97134470_n.jpg.

  9. #9



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    If someone falls out of the sky with a duel weber compatible intake for a 2.0L G63B 4G63, Don't even post it. Just send me your paypal and we'll get that rolling.

  10. #10


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    Quote Originally Posted by BradMph View Post
    If someone falls out of the sky with a duel weber compatible intake for a 2.0L G63B 4G63, Don't even post it. Just send me your paypal and we'll get that rolling.
    I think CARBS UNLIMITED sells a throttle body set up for them.
    You may call them to see if they sell just a manifold.
    OR TWM. BOTH are kinda pricey though.

    Otherwise, One could just cut off the top of the "Y" for each runner on the stock intake and weld on an elbow and utilize two Weber 34ICT's (down drafts)

    E
    I've been thinking of that for decades... Heck, if they can run a big inch VW, they can surely run a mitsu too.

  11. #11


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    Take a look-see at this kit.
    Kinda universal. and PUURRRDY TOO!

    http://www.carburetion.com/Products/...art=99600.021K

    E

  12. #12

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    I guess the best bet is just have someone make me a custom intake... regret not taking the custom fabrication shop now lol

  13. #13

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    I had a friend back in the early '80s that had a Dodge Challenger(Mitsubishi Sapporo) with the 2.6 4G54 motor that ran dual side draft Mikuni carbs.

    It was actually the car that got me interested in Mitsubishi vehicles, and it was a pretty awesome ride.
    I even got it up to 130+ late one night out on Hwy 1 between Half Moon Bay and Davenport.
    I knew daredevils and I ain't got nothin' against them, ........it's just they're all dead.

  14. #14

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    my coworker said he had first gen MM with the dual side draft mikunis and he said the same thing actually, he also mention that since we had no rev limiter he would rev the crap out of it lol sounds like fun to me.

  15. #15

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    http://www.rpw.com.au/shop/index.php...emart&Itemid=1

    Thats for the Astron, might look around the store and see what you can find for the sirrus and saturn, depending on what you need...

    Originally the side drafts and down drafts were offered through Direct Connection, you could get all sorts of stuff for the 70-80's Colts for Rally Racing. The intakes pop up on ebay from time to time, thats how I found mine. Interestly the carbs for the dual 1.6 and 2.0 down drafts use the same spacing and linkage, although the manifolds are obviously different.

  16. #16

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    the motorcycle carbs would allow you use the stock intake after you modify it, here is the same videos i posted before of vehicle running


  17. #17



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    Quote Originally Posted by 77amc View Post
    Take a look-see at this kit.
    Kinda universal. and PUURRRDY TOO!

    http://www.carburetion.com/Products/...art=99600.021K

    E
    Wow, that price for this could buy me a V8, installed.

  18. #18


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    Quote Originally Posted by BradMph View Post
    Wow, that price for this could buy me a V8, installed.
    cough, cough. Does this mean you get to keep the baskets the engine came in?
    Building a aluminum intake wouldn't be that hard, but because of weld warpage you'd need it machined flat
    You can set up your little mig welder to run aluminum, it's not just for steel, it's a welder. Just keep your whip straight as possible since aluminum is soft and it will jam. The cleaner weld area the better the weld, using a carbide rotary file not with a hard disc.
    "Clean is, if it isn't shinny it's not clean"
    Use some Preheat like a propane torch (it can't melt aluminum) and most likely you will get pin holes in your welds. (You won't if you have a tig welder). And yes your welds will look like crap, remember the rotary file? At work we call it weld profiling and weld repair.
    They sell one pound spools of aluminum wire, A grade such as 5356 is harder so you need more heat compared to 4043 is a softer wire which needs less heat, as far shielding gas Argon or the higher grade mix.
    O Snap, I've dam near built you one!

  19. #19



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    John Baker in the 80's sold the dual side draft setup for both the 2.0 g52b and 2.6 g54b motors. The 2.0 used 40MM Mikunis, and the 2.6 used 44MM carbs. The weber setup uses DCOE 45 carbs, which are slightly bigger than the Mikuni 44s, but the Mikuni - Solex carbs are work-alike carbs to the webers. Jetting will need to be changed to allow for other factors with the motor of course.
    Pennyman1
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    Living the D-50 lifestyle since 1980

  20. #20

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  21. #21



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    Quote Originally Posted by amcervantes View Post
    Make 2, I think I like one also...hahhaha!


    Hey Rick, if you ever seen my welds...probably want to keep me away from trying to weld anything . When I even use superglue for anything, I glue my fingers together.
    Never got much training in the welding portion of high school, I don't have a welder or wire feed yet, but this is very high on my grocery list. My friend has a wire feed and said I can use it anytime I want learn the skills. I Use to do some braze welding in the day, but would like to try some aluminum someday as well.
    I been thinking about this intake manifold thing also and would like to try a couple ideas I have. Most of my problem is just going out to the garage and burning up a reel of wire until I develop some skill.

  22. #22

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    I can't weld either so I will probably have some one do it for me. Lack the dexterity for steady hands. Will do this around tax season lol

  23. #23

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    Ship it to me, I can weld it (except aluminum). Stainless, and even cast (use stainless rodshehe. Send return shipping and if only a few rods I have (pics before shipping), cost is nada to fellow members!

  24. #24

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    it will probably be aluminum though lol

  25. #25



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    " cost is nada to fellow members! " Drops this line into my bag of Credits for future possibilities lol. Thanks

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