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Thread: Intake Manifolds That Fit A20A and JDM B20A Motors

  1. #1
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    Exclamation Intake Manifolds That Fit A20A and JDM B20A Motors

    Here are some completed intake manifold swaps:

    B16A Manifold on JDM B20A

    B18A Manifold on A20A
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    Quote Originally Posted by joker2
    I think this would be good for the people who are thinking of going with a different manifold.... Like I know a b16 manifold will fit but you have to tap the head with 2 extra bolts, which isn't hard at all....
    Last edited by A20A1; 10-06-2004 at 02:02 AM.



  2. #2
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    okie this is interesting
    But did anyone really tried the b16 manifold? Or was it just an idea or eyeball measurements?
    So any other (better) manifold will fit?

  3. #3

    PhydeauX's Avatar
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    B20A from gen3 accord. This has been confirmed many times.
    B18A/B Requires drilling 2 holes in the manifold flange. I learned of this from bigblockcrx who is no longer on this board and I've verified this one personaly.
    B16A/B18C5/ITR/etc other vtec motors that use the same head as the B16A. Justanothermike and I have verified this one. It also requires drilling the flange. 3 or 4 holes I believe, I'm not at home to look at my notes.

    Manifolds that don't fit but look close.
    ZC
    D16A

    andy

  4. #4

    carotman's Avatar
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    The B18C1 manifold is different from the B16A too. I don't know if it fits tough

    http://pages.videotron.com/omus
    3geez member since July 12 2000

    I need these parts!
    https://www.3geez.com/forum/showthread.php?t=67742

  5. #5

    PhydeauX's Avatar
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    No good on the B18C1. Its on the C5 that fits. From the 95 integra gsr or whatever.

    andy

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    SEi User B16 ED9's Avatar
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    the c5 is from the integra type r

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    So I suppose aftermarket (performance) intake manifolds from these engines will also fit. How about the TB?

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    SEi User toastyghost's Avatar
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    I would assume that if you can make the manifold fit, you can use whatever throttle bodies normally fit that particular manifold. Anybody know if any of this stuff will also bolt to an Accord B20A with similar modification? Building an engine with that much torque so it could rev to 10k would give me an orgasm...
    ~<+045+ygH05+>~

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    Exactly ghost!!! Just think once you use another manifold, you'll be able to use any aftermarket part that they may have for that manifold like fuel rails, injectors and tb's....... So with a manifold conversion you have just increased your air and fuel capabilities......:super:

  10. #10
    SEi User toastyghost's Avatar
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    Edelbrock ITR manifold has operative range up to 11k I think..
    ~<+045+ygH05+>~

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    Just image you having a venom manifold, the ones that are built basically for NOS, on a 3rd gen....... Those manifolds are nice as hell!!!

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    PhydeauX's Avatar
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    Yeah, the manifold will fit. Its a b18a btw and starts later then 87 (I think 89). The problem is that the manifold has to tip 15 down to be mounted on an a20a. The b18a sits pretty much strait. I tryed this path already. You can't just bend the manifold, and cutting and rewelding it puts you back at square 1. Only you just paid $500 for a manfiold that you're going to have to cut up. Because the b18a has part of the water jacked in its manifold it pushes the cost up. You don't have to worry about the angle when doing efi, before someone asks.

    andy


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    SEi User MoonScryer's Avatar
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    Also, for anyone who forgot, the B20A is Openloops, 87 LXi hatch is running a B16A manifold; they said it helped the power curve nicely.

    My next stop: Skunk 2 B18B manifold. As if I have money, but I can work for it
    I am the wrath of the server you curse and the demon of the directory you cry about - making life hell for users, one deleted file at a time.

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    me and edelbrock are going to do a magic show for yall as soon as i rob a bank or somethin.. :P
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    PhydeauX's Avatar
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    http://cgi.ebay.com/ebaymotors/ws/eB...tem=1871743941 If anyone is interesrted I came across this.

    andy


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    I saw on of those on ebay the other day but it was way cheaper than that one...... That would be nice to have......

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    So will the B18c manifold fit or not???

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    SEi User toastyghost's Avatar
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    DA FUEL HOLES LINE UP BUT DA OTHAR HOLES DON'T ALL LIEN UP
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    Say what??? Are you just talking about the B18c??? You know what, I just noticed you're from the burg, I went and played football at Madison........ Small world......

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    so a b16a intake manifold will fit on an A20Ax head right? if you go the fuel injected route, you only need to drill 2-4 more holes in the intake for the bolts to line up, and from then on its a bolt on affiar? you would then need all the sensors, T/b and injectors right? also how would you wire that?

    toasty: to rev up to 11k you need more than a solid intake manifold you need a bulletproof valvetrain with better retainers springs etc...
    Aka mugenaccord from the ole ole ole board
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    I know that the manifold isn't the only thing that needs heavy upgrading to get that kind of rev range, but I don't want that to be the limiting reagent. AND THIS THREAD IS ABOUT MANFIIOLDS

    HARISONBURUG KIKCK ARSE
    It's great to finally find someone that knows where the hell this place is...
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    LXi User 1989se-i's Avatar
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    Which car has the b16a engine in it?
    Performance Modz: Short Ram Air Intake, Custom Exhaust w/o Cat & Resonator, Cherry Bomb Turbo Muffler, Accel Coil, Removed AC

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    90-93 integra X-Si and R-Si had a b16a in it..Japan only
    civics an crx's had b16a's in them also del sol

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    Individual throttle bodies would be a dream

    -5150
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    glorious!

    imagine a beowulf cluster of tho... oh wait... its sabz. how is the beowulf cluster of myth boxen treating you?

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    Originally posted by Sabz5150
    Individual throttle bodies would be a dream

    -5150
    it can verywell become reality

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