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Dual CARBED B20b

Discussion in 'Engine Building' started by 78civic, Oct 14, 2009.

  1. 78civic

    78civic Junior Member

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    B20b eng wtrans with carbs 003.jpg 12236[/ATTACH]

    I was digging thru my crap and found these.. Brings back memories.
    I wonder what type of mileage that I'd get?? Ibecha the same as my d15b2 huh?

    I just wonder if the seals are still good?

    E
     

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  2. eg'sforlife

    eg'sforlife New Member

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    if you could get them properly tuned you can get pretty good mpg's out of them
    for the best economy i suggest switching to FI........if thats the type of milage your talking about
     
  3. efhondakid

    efhondakid My name is Byron. VIP

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  4. awptickes

    awptickes unimpressed by you VIP

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    I'm gonna wait until clayton sees this.
     
  5. 78civic

    78civic Junior Member

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    And who's Clayton?

    I'll probably go with the FI, I was just messing around and dreaming a little.
    It's just that I had the intake under all this crap and had the carbs from an old 1600 EL Canadian head that will be on my EK 1751 in a 79 cvcc 5spd.. (If I ever finish it..)

    I really need to start putting stuff on Ebay!

    E
     
  6. awptickes

    awptickes unimpressed by you VIP

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    Clayton aka airjockey. He hinted that he was going to carb his b20 crx to me a few times.
     
  7. double0Si

    double0Si ლ(ಠ益ಠლ) VIP

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    Mmmm. Twin side drafts. Hot. I wanna ITB my Si. Not for power or the mad tyte yo factor. They just remind me of an old school flathead deuce or gasser.
     
    Last edited: Oct 17, 2009
  8. Airjockie

    Airjockie Watanabe Whore!!!

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    if you ever want to sell that manifold.....:ph34r:
     
  9. 78civic

    78civic Junior Member

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    So if I did 'do' the carb setup, what would be needed to trigger the ignition?? BOY, that would clean up the wiring in the engine compt..

    Would one have to go to a crank triggering system?

    AirJockie, I'll let you know when I put it up for sale on here or the Ebay.
    I first have to get the B20b swap in and running reliable.

    E
     
  10. awptickes

    awptickes unimpressed by you VIP

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    crank trigger would probably be easiest. Lots of people wind up going to a megaspark system.
     
  11. 78civic

    78civic Junior Member

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    Reverend.. What's this 'megaspark' system?

    Boy, ya leave 'cars' for a while, have some kids and wham.. I'm left in the dust with all this tech stuff.
    I feel old.

    E
     
  12. awptickes

    awptickes unimpressed by you VIP

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  13. 78civic

    78civic Junior Member

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    OK, fast forward a few months.. Picked up a straight '85 1500s and a slightly 'bent' 89 teg for the usual swap and in my searching and learnin, I find that Haasport makes
    B-series mounts and got to thinking more about the carb set up.
    have all these parts just sitting that thought of the GSR build up for the "S". But if you knew how i HATE wiring I think you'd side with me in thinking of modding one of the NON
    V tech, B-series heads that I have to the GSR block. (just since it's got the crank girdle) OR, I can go with my B-20 block and do the carbs (40's) and adapt the '84-87 dizzy to the B head and be up and running. (motor wise)

    Either way, I'm probably looking at maybe 25mpg the way I drive.
    Does anyone know if 'they' make cams for carb'd dohc's?

    If not and I'm stuck with FI. I have some really wild intake mods to the GSR intake and it would be CHEAP CHEAP CHEAP in parts..

    E
     
  14. whiterabbit06

    whiterabbit06 Why oh why didn't I take the blue pill? VIP

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    5 years and a few months.
    :blink:
     
  15. 78civic

    78civic Junior Member

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    OK, so? I've got several dozen projects going on.
    I just don't throw stuff out so fast.
    When you're my age things go a LOT faster..
     
  16. whiterabbit06

    whiterabbit06 Why oh why didn't I take the blue pill? VIP

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    I just thought it was a little funny. I know what you mean, I've got a ton of home and car projects that are half finished all over the place.
     
  17. Briansol

    Briansol Admins Admin VIP

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    Um, i'm pretty sure there is not a difference between carb'ed or EFI cams.... a cam is a cam. Are you looking for a PROFILE that better matches that of a carb'ed engine?
     
  18. 78civic

    78civic Junior Member

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    ..Um, there is A HUGE difference. FI cams have to stay within the operational parameters of the ECU makers designs. That's why you guys have to get the FI ecu's ' chip 're-burned' or reprogrammed in some electrical way.

    BUT, in a carb'd engine, you have to remember that NOW that the motor is carb'd, the cam HAS TO be designed in a way to draw or suck the fuel (causing the atomization) instead of just opening up a valve for a spray or charge of fuel to be shot in the port/combustion chamber. (yes, I understand the FI motor still sucks air in)

    ANYONE have any info on carb grinds for the B-series heads? Doesn't really matter if it's for the GSR or B-18, 20's.
    Just wanted to use the crank girdle for strength, but it can change to the other B engines..
    UNLESS there might be a way to 'trigger' the V-tech solenoid from a tach or linkage.

    Thanks
     
  19. whiterabbit06

    whiterabbit06 Why oh why didn't I take the blue pill? VIP

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  20. 78civic

    78civic Junior Member

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    Here's another theory..
    A distributor is a distributor, so it doesn't gain rotational resistance like an alternator making it real easy to rotate.
    SO, all that's needed is to make an adapter to mate the B head (or really end of the cam) to one of my mid '80's distributor.
    The contactor is just a circular "T" as we've all seen, but it's only held on by a pin that can be pressed out.
    The EW distributors have that cute little double vacuum advance that isn't the best for performance minded builds.
    SO, I'm heading out to see if I can locate an Accord dizzy that the advance can is still holding vacuum and either use the advance
    linkage, or the whole thing.
    That way I can adapt it to the B head and fire the plugs..

    I'm also thinking that a 4-rib alternator from a mid 80's prelude/Accord should be able to be adapted also.
    Just need to look at the plug..

    Looking for some GOOD advise from KNOWLEDGEABLE engine builders.

    Errol
     
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