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Thread: C.D.I. Ignition

  1. #1
    Senior Member slideways's Avatar
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    Default C.D.I. Ignition

    I am thinking about going a cdi ignition setup, as a few mates have made good power gains with it.

    Just wondering If anyone knows of cheaper units that will work with an ems 4424 and quad bosch coils?

    Ems sells a unit, but at $1100.

    What do you guys recomend??

  2. #2
    Senior Member slideways's Avatar
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    Default





    Is this what I want for BiG bANg?

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    Veteran Skylar's Avatar
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    I cringe every time I see their URL. haha

    Why do you want CDI? Are you blowing out spark? What are the plugs gapped to? Coils are wired to sequential/waste/single coil+dizzy?

  4. #4
    Senior Member slideways's Avatar
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    Whats wrong with these guys? There not the same as the guys who make the stinger you know?

    I'm running an ems 4 ch ignitor, suposedly sequential but I have a feeling its still running wasted, and now that one of the drivers fried itself, its time for a replacment or upgrade.

    Also its a Cas + 4 bocsh coils

    Plus spark was blowing out at higher rpm. Gapped at .88, then .6 and still had troubles.

    And like I said before, there is a bit of power to be gained with ignition
    Last edited by slideways; 4th October 2009 at 05:52 PM.

  5. #5
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    I have read many times of AEM electronics not working properly. Their wideband never works properly and the standalone has damaged or blown up a few motors. I haven't read anything about the CDI unit though.

    I think you fried the 4ch ignitor because you are running in waste spark? Try the bosch 211 ignitor, it's for running 4 coils with only 2 ignition outputs. I dunno why that's relevant.

    What's the dwell time set to?

  6. #6
    Senior Member slideways's Avatar
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    Wasted spark shouldn't make a difference with a 4ch. it just means it switching 2 drivers at once. Can't remember why, but read somewhere that with the cas you can't run full sequential anyway.

    i'll check the bosch unit out.....

  7. #7
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    You can do full sequential.

    You have 4 ignition outputs or two?

  8. #8
    Senior Member slideways's Avatar
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    Got 4.

    I could be wrong....

    Do any of the bocsh igniters have a tacho output, and could you give me a link to them....? With prices...????


    Cheers
    Last edited by slideways; 4th October 2009 at 07:27 PM.

  9. #9
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    What do you mean by tacho output?

    5v square wave or voltage spike?

    And the answer to your question is no. but there's an easy way around it.

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