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Technical Hemi WICO Mag???

Discussion in 'The Hokey Ass Message Board' started by Magfiend, Nov 18, 2022.

  1. Magfiend
    Joined: Sep 11, 2019
    Posts: 517

    Magfiend
    Member

    I just found one - wondering if anyone knows anything about them in this application?
     
    Last edited: Nov 18, 2022
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 23,025

    alchemy
    ALLIANCE MEMBER

    I usta have a Pounden mag that was made from a Wico with a new base, and I think an adapter for the cap. It was for an Olds. I never used it, but was used before.
     
  3. patsurf
    Joined: Jan 18, 2018
    Posts: 2,850

    patsurf

    def a pounden!
     
    Desoto291Hemi likes this.
  4. Magfiend
    Joined: Sep 11, 2019
    Posts: 517

    Magfiend
    Member

    Sorry, one lousy pic...
    FB_IMG_1668796942052.jpg
     
    Okie Pete likes this.
  5. ronnieroadster
    Joined: Sep 9, 2004
    Posts: 1,209

    ronnieroadster
    Member

    Considering that Wico's original application was a four cylinder tractor engine the converted Wico is not a very good choice for a HEMI. It has the cool factor being an odd part. Originally if they were any good we would see pictures of them on early HEMI's I dont recall ever seeing one in a picture or in real life.
    Ronnieroadster
     
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  6. Magfiend
    Joined: Sep 11, 2019
    Posts: 517

    Magfiend
    Member

    Must be extremely rare as I've only seen them used for twin ignition on flatheads.
     
  7. Magfiend
    Joined: Sep 11, 2019
    Posts: 517

    Magfiend
    Member

    So Pounden made a converted Wico?
     
  8. patsurf
    Joined: Jan 18, 2018
    Posts: 2,850

    patsurf

    yes-had castings made for all diff. engines... started w/ flatheads way back
     
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  9. Harv
    Joined: Jan 16, 2008
    Posts: 1,515

    Harv
    Member
    from Sydney

    Wico primarily made ignition systems for stationary engines. Early models (for single and twin cylinder engines) included models like the "L", "O", "R", “B1” and “B2”. By the late teens, Wico was producing maggies for a broader range of engine sizes, including the AX, PR (later replaced by the EK around 1919 – over one million EK magnetos were sold for single cylinder farm engines) and the OC models. Wico produced a very long line of rotary mags including the "LD", "A series", "C" (around 1939), and finally the "X series" (1946). The rotary mags were popular on John Deere and Case tractors, and countless other engines. Wico also made the J and JEM vertical rotary mags commonly used as an aftermarket option on &*#@HAMB friendly cars.

    Normally in a maggie the number of poles and pole shoes is identical to the number of cylinders. I'm ***uming the Pounden conversion runs a 4-pole Wico maggie, but would love to know how they get it to run an eight pot Hemi. Spin them at crank speed perhaps... but how to split the four outputs?

    Curious minds need to know :D

    Cheers,
    Harv
     
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  10. Magfiend
    Joined: Sep 11, 2019
    Posts: 517

    Magfiend
    Member

    Not sure...once I pick it up I'll open it up to see...
     
    Okie Pete likes this.
  11. patsurf
    Joined: Jan 18, 2018
    Posts: 2,850

    patsurf

    2-1 gears in the casting
     
  12. Okie Pete
    Joined: Oct 29, 2008
    Posts: 6,267

    Okie Pete
    Member

    I have a Wico mag base mount for a 6 cylinder engine
     
  13. I run a Wico JEM in a banger motor, runs like a clock.
     
  14. tubman
    Joined: May 16, 2007
    Posts: 8,354

    tubman
    ALLIANCE MEMBER

    Couldn't you fire the plugs on 2 cylinders 180 degrees apart in the firing order at once? As I remember. a hemi 's firing order is 1-8-4-3-6-5-7-2. Fire 1 and 6, 8 and 5 etc. at the same time. While one is firing just before TDC on the compression stroke, the other would be firing just before TDC on the exhaust stroke (when the exhaust valve is still open). Nothing to ignite, so no harm no foul. I seem to remember some engines that operated exactly this way.
     
  15. Harv
    Joined: Jan 16, 2008
    Posts: 1,515

    Harv
    Member
    from Sydney

    It will be interesting to see.

    If it is a 4-pole magneto, running it at camshaft speed would only give you half the zaps you need. From Patsurf's post, it looks like the Pounden maggies are geared up to spin twice as fast (crank speed). Now you've got enough zaps (8) for each crank turn.

    Most 8-cylinder magnetos though have a cap with 8 contacts inside. As the maggie spins once, it sends the spark out in order, as the terminals are arranged 1-8-4-3-6-5-7-2 (at least for a hemi they are). In our high-revving Wico, we are getting 8 zaps, but the rotor has p***ed each of the terminals twice. How does it know which of the two revolutions to send the zap to which terminal?

    Suspect that Tubman is right, and that two plug leads are connected to each terminal (e.g. 1 and 6). Both get a zap (at around half the amps each), but only one fires because of the state of the charge in the cylinder.

    Cheers,
    Harv
     

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