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  1. #1
    xanaphyst's Avatar
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    killer bee backplate VS surestart backplate

    If I take a surestart backplate and remove the choke tube plus drill the hole to 3/32.....Is it now a killerbee backplate ???
    Big fun comes in 1/2A packages

  2. #2
    GallopingGhostler's Avatar
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    RE: killer bee backplate VS surestart backplate

    Warren Leadbeatter, a Cox engine guru posted an article on E-Bay:

    E-Bay Buying Guides - Cox Surestart Hop up

    In there he describes modifications to the backplate to improve performance. Can't tell you if you'll have a Killer Bee backplate with the mod, but think you're probably not too far from one.
    George Hostler
    Clovis MADS AMA Club, Vintage R/C Society (VRCS)
    And we know love by this, that He laid down His life for us, and we ought to lay down our lives for the brethren. 1 John 3:16

  3. #3
    combatpigg's Avatar
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    RE: killer bee backplate VS surestart backplate

    The only KB backplate I ever laid eyes on measured the intake at .180"...[if I remember correctly].
    I remember comparing it to other backplates I had laying around and noting that none of them had enough extra meat to drill out to match the KB.
    WHO GUNNA FEED MAW KEEEIDS..???

  4. #4
    GallopingGhostler's Avatar
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    RE: killer bee backplate VS surestart backplate

    SureStarts are the latest interation of the odd 4 bolt bulkhead mount venturi back. The intake is narrowed by flattening both left and right side of the hole, so it is sort of like a crude oval. Opening it up to 3/16" of an inch is 0.1875, which is not too far off from the KB.

    Then I gather CP that the earlier ones used less plastic, which then of course would be hard to modify. I guess these were targeted for the then Cox series of cheap ready-to-flies, which of a smaller wingspan of what? 16", wanted a better fuel draw and slight reduction in power was warranted I imagine.

    Going with a Tee Dee sub-induction piston/cylinder assembly with a Glo-Bee head and modifying back by drilling it out probably gets close to if not next to a KB.

    I suppose if one wants to replace a Cox Pee Wee intended plane with a SureStart, probably could leave the tank back alone, put in a glow plug head adapter to lower compression, place prop backwards to reduce thrust or use a throttle ring and 3rd channel. Ken Willard's Virus comes to mind. It would be a hoot on .049 power.
    George Hostler
    Clovis MADS AMA Club, Vintage R/C Society (VRCS)
    And we know love by this, that He laid down His life for us, and we ought to lay down our lives for the brethren. 1 John 3:16

  5. #5
    ZAGNUT's Avatar
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    RE: killer bee backplate VS surestart backplate

    with the banana engines i would always take the screen off the intake and carve the opening to a nice trumpet shape. to get more air flow i would press the valve body out and file flats on both sides.
    \"I\'ll take the money- and you can have the rope\"


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