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Thread: B18A Dual carb engine picture

  1. #26

    AccordB20A's Avatar
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    Re: B18A Dual carb engine picture

    i had a white 1987 vigor b18a. i got my b20a 5 speed out of. i had no idea about honda engines then i was so lucky they just bolted... lol never drove it cause the engine spun a big end and ran noiseyseily and was gunna die ne second.

    a guy at our dumpyard has one,..he was sciteing one day sayin he cud do 130KM/H but he ran out of road...umm we thought thats a bit slow...maybe he cant drive?!?!?! lol 137HP tho it shd b able to pull damn fast
    Last edited by AccordB20A; 05-16-2006 at 11:54 PM.



  2. #27
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    Re: B18A Dual carb engine picture

    mmmm nice block. I could use that. *drools*

  3. #28
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    Re: B18A Dual carb engine picture

    ahem the clean one on the the last page. [ in case no one knew what I was talking about.]

  4. #29
    LX User Venyix's Avatar
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    Re: B18A Dual carb engine picture

    Forgive me for my lack of knowledge...but is it correct to assume that if a B18A swap WAS done on a carb'd accord...that a bolt on B-series turbo intake would be possible?

  5. #30

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    Re: B18A Dual carb engine picture

    yes turbo manifold should bolt up, but lets not forget that it still has carbs attached to it.
    Alex.

  6. #31

    carotman's Avatar
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    Re: B18A Dual carb engine picture

    The intake ports are totally different.

  7. #32
    LX User Venyix's Avatar
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    Re: B18A Dual carb engine picture

    Quote Originally Posted by carotman
    The intake ports are totally different.
    So the intake ports on the turbo manifold would not bolt onto the b18 then?

  8. #33

    carotman's Avatar
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    Re: B18A Dual carb engine picture

    AFAIK, nothing matches the B18A intake ports.

    IF you can get your hands on a B18A, just install a B20A head on it. That one matches the USDM A20A ports and you can easily install any later B series intake manifold.

    However, you don't need a specific intake manifold for a turbo, it's an exhaust manifold.

  9. #34
    LX User Venyix's Avatar
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    Re: B18A Dual carb engine picture

    Perhaps I should go to a junkyard here...look around for some old integras...appreciate the help.

  10. #35
    Accord of the Year - 2009

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    Re: B18A Dual carb engine picture

    It's not an integra engine. It's an accord engine and you wont find it on any junkyard in the US.


    Link to my 3geez garage
    • Accord 2.0i-16 '87 B20A2 DOHC 16v
    • Accord Aerodeck EXi '89 Exclusive Edition

  11. #36

    carotman's Avatar
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    Re: B18A Dual carb engine picture

    Well guys, here's some update.

    I was browsing www.preludepower.com (nice guys there) and came across this picture.



    This is a picture of a B20A3 head intake ports... notice the port shape and bolt pattern.

    I guess the diagram I posted earlier for the B20A3 wasn't accurate. The B18A and B20A3 intake ports seem to be exactly the same.

    It would be really sweet if someone that has access to both engines could compare things.

  12. #37
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    Re: B18A Dual carb engine picture

    Whats the power specs on B18 carbed? i'm looking for some potential carb upgrades for my ET want to try to get around 130-140bhp from the stock type manifold and twin carbs if the jetting on B18 is bit richer will make it a lot easier to reach. Trying to squeeze the most i can out of this ET with it looking totally stock from the outside. So looking at a 2.0l block, Big valves, ported flowed head, header, exhaust, very mild camshaft maybe, CR ratio of around 10.5:1, and adjustable pulley. Never tried modding an engine with stock carbs to any great length so should be a learning curve!! Hate the stock carbs but at least English ones don't have all those daft emission things on them so are a lot simpler.

  13. #38
    3Geez Veteran A18A's Avatar
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    Re: B18A Dual carb engine picture

    from a 87-89 3gee:

    i saved the page with it but its on another computer, still gotta find it

  14. #39
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    Re: B18A Dual carb engine picture

    Any power specs then? Or anyone know anygood carb mods for these?

  15. #40
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    Re: B18A Dual carb engine picture

    Quote Originally Posted by A20A1
    Is #26 on the first B18A carb diagram a TPS ?
    just to add,the lude with the dual carbs also has a TPS sensor like this. so it might be a good idea to look at the carb control systems on it to compare to this one. i would bet there are a lot of things the same. it also has a check engine light and stores trouble codes like a FI system.

  16. #41
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    Re: B18A Dual carb engine picture

    Does anyone know what the BHP is on these things?

  17. #42
    3Geez Veteran A18A's Avatar
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    Re: B18A Dual carb engine picture

    gold top is rated 130hp @ 6000rpm
    black top is rated 115hp @ 6000rpm

  18. #43
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    Re: B18A Dual carb engine picture

    any ideas on howmuch HP you could squeeze out those twin sidedraughts?

  19. #44
    3Geez Veteran A18A's Avatar
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    Re: B18A Dual carb engine picture

    *I* wouldnt have a clue :o

    oh and here's a pic of the carbs, forgot to post it before lol

    just incase anyone wanted to see it
    Last edited by A18A; 08-09-2007 at 10:08 AM.

  20. #45
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    Re: B18A Dual carb engine picture

    Pretty much nearly running 130bhp with my stock ET engine fuel pump is lacking though keeps loosing power at high speed and full throttle i think if i drop my Facet race pump in with my King filter adjustable regulator i might be able to add a few more and at least make the power constant instead or intermitently on and off which is damn annoying!!

  21. #46
    DX User sb_hbackDX's Avatar
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    Re: B18A Dual carb engine picture

    Sorry kinda an old thread but....I'm wondering if the dizzy from that b18a can fit on the b20z or b20b? The question is due to the thought of running DCOE's or Mukini's on the CR-V b20...:) Then I could save myself some time by avoiding ECU's, injectors, MAP sensors, etc. and all the trouble thats becomming of FI cars. Thanks in advance!

  22. #47

    carotman's Avatar
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    Re: B18A Dual carb engine picture

    The 86-87 Integra D16A1 Dizzy will fit with little mods. It's the same thing and it's widely available in the US :D

  23. #48
    DX User sb_hbackDX's Avatar
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    Re: B18A Dual carb engine picture

    Thanks for the reply my friend! Now when you say "little mods" are they actually little mods or do I have to break out the chainsaw? I really want to carb a b-series....man that would be sweet:) I saw someone DCOE'ed the h22 in a mag awhile back for the SCAA or Auto-X, they got rid of the EFI stuff to save weight! Hope I'm not wasting my time with this...input is quite welcome!

  24. #49
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    Re: B18A Dual carb engine picture

    A18A Got any more pics of those carbs? Can you do us a favour and measure the width of the bores on the inside just in front of the butterfly? Interested to know if they are same as the other carbs on 2nd and 3rd gen preludes. Thanks.

    Hmmm Carbs on Vtec engine hey i like this guy go for it i say not sure if you'll have to disable the vtec system though to make it work properly may be interesting to try and setup. Also if your B20Z is making some serious power you may want to think about some carb mods to help make them flow better and or upgrade to bigger ones e.g. DCOE 48/50's but trouble is with that is they bore spacing is wider so you won't have straight shot at the inlet ports. Other options are Racing Bike carbs which are fully adjustable albeit they have to be taken off each time cause the jets are allways underneath for some stupid reason!! But you can get these in 40-55mm and there really small and light.

  25. #50
    3Geez Veteran A18A's Avatar
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    Re: B18A Dual carb engine picture

    those carbs arnt mine :( i just saw them for sale

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