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efi sfi tbi or carb

Discussion in 'Hangout Lounge' started by swe-eet, Dec 17, 2012.

?

if you could change your bike from carb to fuel injection with out spending much more then a 4 carb

  1. yes

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  2. no

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  1. swe-eet

    swe-eet Member

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    As crazy this is about to sound Just hang in there. This is just a write up of an ideas and a few know how related thoughts.
    the history part back in the 60 and 70s Honda car company was useing 3 and 4 cylinder motor in there little cars to meet the u.s. standard of motor safety emissions. How ever the interested part of this history lesson is this the use a single or twin Carb intake with the same bolt pattern as our beloved xjs and Honda's and a few others intake tubes. (Almost all inline fours in Japanese bikes but not all) So the fact is in the 80/90s that made a motor b15 and other with efi on them with the same intake design...

    Now the idea if they used the Same intakes and carbs. are tune able. and so is efi sfi you should be able to make all this work on the bikes we ride. As crazy this sounds Honda didn't use a real car motor till mid 90s this is when they had no bike related ideas in them. Crazy yes but remember Honda started as a bike company and there 1st car was chain drove motorcycle engine powered.

    So is this idea just nuts or is it wishful thinking or am I on to something

    A lot of the new fuel injection bike use the same idea Honda used and Chevy used from the 60s and on..

    So could u swap your Carb to 4 injected ones or use a tbi that is basically a Carb with a big injector on it. ...


    Remember this is a idea and it just a conversation piece


    Please add your idea to this post and please think about it because we already no they made a efi xj bike




    This was a idea posting. This was not googled or Bing. This was just a few local people with inline 3 and. 4 that has noticed this and are big gearheads. And yes if one of us 20 riders do something like this to our bike to try it you guys will be 1st to know and pics will be posted.....
     
  2. rocs82650

    rocs82650 Well-Known Member

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    swe-eet,

    I think Darkfibre was working on a efi system conversion for one of his Secas. I also think I saw in the thread about the XJ with the efi that a couple members had successfully converted to a efi system. Don't quote me on this...I might be wrong.

    Gary
     
  3. maximike

    maximike Member

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    It's been done a few times on here, as rocs says, check out darkfibre's bike "the pumba project" but I think most folks use a system off another bike, or a kit custom made for modding bikes. I'd like to see if you pull off the old Honda civic efi to xj swap, or whatever you have in mind.
     
  4. trailsnail

    trailsnail Member

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    Being that I live at 6500 feet, I'd love to have some form of fuel injection to negate issues with altitude changes. I'm just not ready to throw down a thousand dollars yet for one.
     
  5. swe-eet

    swe-eet Member

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    I knew they had/did it but was it done the way I'm talking off the self part with no custom parts.. is the ideas in reason
     
  6. rocs82650

    rocs82650 Well-Known Member

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    swe-eet,

    Search>Forums>by author>Darkfibre, then SQL, then Gennro. Read their threads and determine whether or not they are talking the same jargon. Murphy's Law says unless you are converting to a efi system specifically "designed" for this type of modification, which doesn't exist, there will be at the least ONE modification you will have to make. Hope this helps.

    Gary
     
  7. Polock

    Polock Well-Known Member

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    1) when the carbs on these work, they work pretty good.
    2) i doubt those car engines saw the RPM's the bikes do so you'd have to remap their brain IF that's possible
     
  8. swe-eet

    swe-eet Member

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    Well that's it all is tuneable its mainly intake design but then again anything is possible with money
     
  9. darkfibre

    darkfibre Member

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    Fitting a car manifold?
    Other than a few rare models, most Jap cars since the late 60s ware all water cooled.

    Most of the manifolds are designed without the space restrictions of a bike, and many have water ports incorporated.
    Big ugly and inefficient compared to what an XJ has.

    I have gone custom, but if you have a 650 the carb spacing is supposedly different, and Gennro came up with an easy fit option.
     

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