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Thread: Intake Manifolds That Fit A20A and JDM B20A Motors

  1. #51
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    I'll spare you the effort. The butterflies close when vacuum is sent to the diaphragm. There is no way they would close under boost. They butterflies will function normally under boost, even if you're seeing positive manifold pressure at a low rpm when they're supposed to be closed. They will stay closed, due to vacuum sealed between the valve and the diaphragm. When the solenoid valve opens and sends manifold pressure to the diaphragm, they will open. I had the 2 stage manifold before I upgraded to the aebs typhoon, controlled by an msd rpm activated switch. The 2 stage is garbage.



  2. #52
    LX User Swap_File's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    I did not find the post I remembered reading, but I did find some interesting stuff along the way:

    A20 Manifold with whole butterfly plate removed:


    (Could be useful for the B21A1 head swap where someone said the intake was too tall to close the hood,but it is a less than ideal intake to use)
    From https://www.3geez.com/showpost.php?p=526320&postcount=1

    Gutting a H22 and GSR intake to make both runners into one:


    From https://www.3geez.com/showpost.php?p=...&postcount=121
    Last edited by Swap_File; 12-27-2005 at 07:54 AM.

  3. #53

    carotman's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    I just want to point out that the B!8 Intake manifold can'T be used with a DC sports strut bar.... which sucks soooo much.

    I don't know about the B18A one. Can anyone confirm if it fits or not? I seriously thing about going back to the stock B20A manifold with all the hassle I've been through.

  4. #54

    AccordB20A's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    who can tell me whats the bestest looking but best flowing replacement intake manifold that will bolt on with only drilling/slotting some holes?

  5. #55
    3Geez Veteran MessyHonda's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    i think the b16 one would be the best replacement

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  6. #56
    3Geez Veteran A18A's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    a blacktop 20v 4age one

  7. #57
    3Geez Veteran gfrg88's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    Quote Originally Posted by AccordB20A View Post
    who can tell me whats the bestest looking but best flowing replacement intake manifold that will bolt on with only drilling/slotting some holes?
    b16/b18c5
    -Gio
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    5280FEST
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  8. #58
    SEi User knarg's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    b16 fosho

  9. #59
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    so are we talkin heads up or intake up

  10. #60
    3Geez Veteran lostforawhile's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    Quote Originally Posted by wingnut View Post
    so are we talkin heads up or intake up
    huh?

  11. #61
    LX User vteckiller's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    Quote Originally Posted by lostforawhile View Post
    huh?
    so im looking on the net at intakes and i came across this.. and well it made me laugh so hard.
    LIFE IS SHORT, DRAG IT OUT!

  12. #62
    SEi User Hauntd ca3's Avatar
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    Quote Originally Posted by A18A View Post
    a blacktop 20v 4age one
    just coz i have this!

  13. #63
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    Re: Intake Manifolds That Fit A20A and JDM B20A Motors

    How much more horse power dose the 0bd1 put out than a stock engine on an lxi

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