Bonneville/ america engine swap..

Discussion in 'Technical Help' started by Crprince, Oct 10, 2013.

  1. Crprince

    Crprince New Member

    Oct 10, 2013
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    #1 Crprince, Oct 10, 2013
    Hi..my first posting..to make a long story short..i'm transplanting an " america 270deg. Engine into a "Bonneville" 360 deg.wired frame...and am not quite sure how to rewire in order to make this new configuration work..i have a fair idea..but the particulars escape me..Do i...wire in an extra coil( if so how)...can i remap the current Bonneville igniter to run an America sequence?... I'm relatively sure that physically the connector junctions are the same for both igniters..so it should be relatively plug and play..its the finesse wiring differences that i need some direction on..any illumination or referral would be greatly appreciated..thank you in advance..
     
  2. Screwball

    Screwball Active Member

    Mar 21, 2013
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    Kent
    #2 Screwball, Oct 10, 2013
    Last edited: Oct 11, 2013
    Ok I'm no expert but surley the 270 or 360 is down to the crank rotation rather than the wiring.
    The spark will only happen @TDC and as the engine is a twin rather than a triple I don't see how wiring an extra coil will make a difference.
    You need to make sure the engine managemt is set right.. You can only do that via Tune ECU or tune boy.. I'd try running an american map on your current ECU, but save your current set up firstly..
    If the connectors line up then it should be a simple reprogram to alter the ignition sequence to match the crank rotation rather than a major rewire.....

    Hope that helps and maybe someone with more knowledge will chip in and confirm...
     
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  3. Crprince

    Crprince New Member

    Oct 10, 2013
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    #3 Crprince, Oct 11, 2013
    Thanks very much!
     
  4. P19DJG

    P19DJG Banned

    Mar 16, 2013
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    #4 P19DJG, Oct 11, 2013
    Nothing more for me to add really SB, you pretty much nailed it there! :upyeah:
     
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  5. brybrem

    brybrem Senior Member

    Mar 8, 2013
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    #5 brybrem, Oct 11, 2013
    magic.gif

    magic.gif
     
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