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Thread: B18A Dual carb engine picture

  1. #1

    carotman's Avatar
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    B18A Dual carb engine picture

    I'm only posting this info here (and in the FAQ) as a reference for those that might want to get a B18A engine and don't know what it looks like.




  2. #2

    A20A1's Avatar
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    I would love to fool around with those carbs and manifold. They do fit the A20 right?
    - llia


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    From the JDM parts catalog I have here, the intake manifold gasket is really different from the A20A/B20A ports.

    It might be similar to the A18A head.

    i'll get a diagram of the B18A intake in a couple of hours

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    So basicly thats the big sister of the A18A

    Just like the B20A is to the A20A


    ---

    How odd, square ports.

    How about the bolt holes are those simmilar?

    Yes, please post any pics / diagrams you have.
    Last edited by A20A1; 08-14-2005 at 03:50 PM.
    - llia


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    carotman's Avatar
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    Here is the intake manifold (sorry for the big picture but the bigger the better they say!)

    B18A intake manifold
    B18A Carbs
    B18A Carbs(2)

    Here's the 2nd gen Prelude ES engine (I mixed it with the A18A in my 1st post)
    ES intake manifold
    ES Carbs
    ES Carbs(2)

    Here's the B20A3 (Prelude 88-89 S, Dual Carb) engine carbs
    B20A3 intake manifold
    B20A3 Carbs
    B20A3 Carbs(2)

    The ES engine seems to use a similar but sifferent kind of manifold setup. The carbs do seem to be quite similar if not the same.

    The B20A3 seems to use a very similar intake port design. The gasket seems to be upside down if you compare it to the B18A (turned 180 degrees). The weird thing is that runners #2 and 3 are connected together...


    That's all I have that seems pertinent. Do you need any other diagrams?

  6. #6
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    Hmm, strange... I always just assumed they would be the same as the ET/ES engines because of the same/similar dual carbs.
    I'd like to have a B18A block and mess around with. Shorter stroke on them :)

    oh by the way, a little offtopic but how do you get the diagrams out of the program like that? and in fullsize


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    carotman's Avatar
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    The B20A and B18A heads aren't the same. However, the blocks seemm to share the same headgasket so it could be possible to use the B20A head on the B18A block I guess. The only advantage would be that it could rev higher whitout destroying itself. Without a Vtec head, revving higher with an agressive cam means a shitty idle :D. (bah, who cares hehe)

    For the diagrams, catch me on MSN, I'll explain it to you. Basicaly, you right-click in the window and it should enlarge. Then choose "edit" then "copy"

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    A20A1's Avatar
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    Is #26 on the first B18A carb diagram a TPS ?
    - llia


  9. #9

    carotman's Avatar
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    Yeah, it looks like a TPS of some sort...

    I don't have the exact description in the parts catalog (it's in japanese) However, I will compare the part numbers with existing ones to see if it matches with something.

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    dude i think that you need to check that engine code again....

    [QUOTE=carotman]I'm only posting this info here (and in the FAQ) as a reference for those that might want to get a B18A engine and don't know what it looks like.

    [/QUOTE

    That is not a B18A1.... im sorry, clean the block plate to find its a d16 DOHC non vtec that came in the USDM 1989 Integra. how do i know this ypu ask? because of the timing cover. the B18A1 and B18B1 top timing cover is made cast out of the valve cover. not a bolt in plastic guard. Im not flaming just you need to payattention yourself before you htink about "schooling us"

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    [QUOTE=Legend-H-88]
    Quote Originally Posted by carotman
    I'm only posting this info here (and in the FAQ) as a reference for those that might want to get a B18A engine and don't know what it looks like.

    [/QUOTE

    That is not a B18A1.... im sorry, clean the block plate to find its a d16 DOHC non vtec that came in the USDM 1989 Integra. how do i know this ypu ask? because of the timing cover. the B18A1 and B18B1 top timing cover is made cast out of the valve cover. not a bolt in plastic guard. Im not flaming just you need to payattention yourself before you htink about "schooling us"
    Dude i think you're talking about the 2 gen integra b18.This b18 come in the jdm accords. :uh:

    15.72@87.21 2.31 60 ft.

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    OMG the B18a didnt even come in the JDM 3 gen accords or ever for that matter. The JDM engine for the 3gen accord is the B20b " not to be confused with the 88 - 91 preludes B20b. lets break down engine code reading....

    Firs there is the series number: B
    then there is the Cubic centimeters converted in Liters: 18 "hince a 1.8L"
    the Letters after that signify the version. and or "Emission changes or revision"

    now we have the JDM 3gen engine . the B20b
    signifiying that it is a 2.0 liter. that is why almost every part will exchange from the USDM B20b prelude engine.

    also in the picture to point out differences. the B20b uses the same exaust and intake manifold as the A20a3

    Im not flamin anyone, and if i am wrong without a doubt i will apologize. It is just that i want my fellow 3g's to have a better understanding of our cars.

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    that may be a JDM engine for our 3g "carbed" but its still not a b18

  14. #14
    LXi User L3G10N's Avatar
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    Legend, the pics is really a B18A jdm from accord 86-89.
    And we have the B20A too. Both engine look the same and came from the accord 86-89.

    Not to be confused with the B20A from Prelude 88-91.
    D16ZC from Integra look similar to the B18A. But as the B20A, don't be confused by both engine!

    Look a this link. I did my research and I find all my answer. I did this page for reference 3 weeks ago for the quebec accord club.

    http://www.clubaccordquebec.com/temp/l3g10n/3rdgen.html
    Last edited by L3G10N; 09-06-2005 at 11:32 AM.

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    OH kinda like the USDM A18 its the carbed version early carbed version. ha now who is the tard?....

  16. #16
    LXi User L3G10N's Avatar
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    Quote Originally Posted by Legend-H-88
    OMG the B18a didnt even come in the JDM 3 gen accords or ever for that matter. The JDM engine for the 3gen accord is the B20b " not to be confused with the 88 - 91 preludes B20b. lets break down engine code reading....
    False. The B18A did come in the JDM 3gen Accord. and the B20 who came into the 3gen accord is the B20A. Not to be confused with the 88-91 Prelude.

    Quote Originally Posted by Legend-H-88
    Firs there is the series number: B
    then there is the Cubic centimeters converted in Liters: 18 "hince a 1.8L"
    the Letters after that signify the version. and or "Emission changes or revision"
    True

    Quote Originally Posted by Legend-H-88
    now we have the JDM 3gen engine . the B20b
    signifiying that it is a 2.0 liter. that is why almost every part will exchange from the USDM B20b prelude engine.
    False about the parts from the USDM B20A prelude. Almost EVERY parts WON'T exange from the USDM B20A.

    Quote Originally Posted by Legend-H-88
    also in the picture to point out differences. the B20b uses the same exaust and intake manifold as the A20a3
    50% false, 50% true. B20A uses a different intake manifold as the A20Ax but the A20Ax intake manifold can be used on the B20A. For the Exaust manifold, they are different and the A20Ax won't fit the B20A

    Quote Originally Posted by Legend-H-88
    Im not flamin anyone, and if i am wrong without a doubt i will apologize. It is just that i want my fellow 3g's to have a better understanding of our cars.
    we will all wait your apologize :rofl:

    btw, the B20B is the same as the B20Z and they both came from the Honda CRV
    Last edited by L3G10N; 09-06-2005 at 01:56 PM.

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    carotman's Avatar
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    Quote Originally Posted by Legend-H-88
    That is not a B18A1.... im sorry, clean the block plate to find its a d16 DOHC non vtec that came in the USDM 1989 Integra. how do i know this ypu ask? because of the timing cover. the B18A1 and B18B1 top timing cover is made cast out of the valve cover. not a bolt in plastic guard. Im not flaming just you need to payattention yourself before you htink about "schooling us"
    I know it's not a B18A1, it's a B18A ... There is only 1 type of B18A engine and it came in the 3G accord. the US 2g integra had the B18A1 and not the B18A. the JDM 2g integra had the ZC and the B16A...

    The D16A1 may look the same because it was build in the same years but it's totally different.

    THIS is a D16A1 from a 1g 86-87 integra.


    Notice how the valve covers do not bolt in the same places.....

    Just check the stats for the JDM 86-89 Accord EXL-S in the modeldata:
    http://www.honda.co.jp/HOT/ModelData...505/index.html

    (direct link)
    http://www.honda.co.jp/HOT/ModelData.../exl_s_sy.html


    Anything needs to be cleared out?



    oh i forgot, some of the DOHC ZC/D16A1 engines came with a carb.... but they didn't come with dual carbs like the B18A

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    damn your right, i should have payed more attention to the bolt pattern

  19. #19
    LX User Cant Stop's Avatar
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    Re: B18A Dual carb engine picture

    so anyone know where i can get those dual carbs rejetted for the 3g? got a set off a lude several months ago have the intake as well

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    Re: B18A Dual carb engine picture

    Would any of those DOHC transmissions fit on the JDM B20A? I.e. the 1.8L and what would be the code for the 1.8L 5 seed transmissions? http://www.clubaccordquebec.com/temp/l3g10n/3rdgen.html
    I would believe that the SOHC JDM, USDM, EDM are totally different. Sorry about going way off topick

  21. #21

    carotman's Avatar
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    Re: B18A Dual carb engine picture

    The B18A and B20A transmissions are interchangeable without problem.

  22. #22

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    Re: B18A Dual carb engine picture

    bump, anyone has more info on the B18A carbs?

  23. #23

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    Re: B18A Dual carb engine picture

    all i know about them is they are a bitch to figure out. My mate is actually getting them to fit as ZC.. just another project to do..... he will have to make a complete custom intake for it. hopefully it wont be too much of an issue.

  24. #24
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    Re: B18A Dual carb engine picture

    so has this b18 in there car?? anyone on here??
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  25. #25

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    Re: B18A Dual carb engine picture

    If only I had a couple bucks to spare. There is a B18A here in montreal at an engine importer. If it was manual, I would already have bought it for the tranny hehe. No way i'm spending 500 bucks on an Auto B18A tough.

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