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Thread: Plasma Ignition | Plasma Jet Ignition

  1. #31
    Hi guys, great topic here, I thought this week about starting one myself but now we can discuss here.
    I have picked up the plasma ignition system recently again on the 250CC generator. We had this running with contact points but currently I have it on the bench in solid state mode and it runs great. A thyristor BT151 800V is what I use for the switch, this works real well I really recommend this SCR. I have a Bedini SS SG charging the cap and this also runs surpisingly well, charging the cap to around 250V before discharging to the bobbin. With smaller caps like 1uf the cap is charged quickly and with low power input (12V 250ma). No problem drawing long sparks without the sparkplug cathode. Very decent effect already with 2.2 or 4.7uf cap. For some reason I like non polarized caps best, like the bedini cap but I like em a little smaller with the bedini setup to keep things elegant.

    Next thing for me is the hall sensor that will trigger the BT151. This shouldn't be to difficult to setup, hopefully.

    I shot a little video with my phone this weekend, have a look but watch your volume please, it will get nasty. In the video I believe there is 2x10UF in the circuit which I now believe is overkill but great for effect. When the frequency goes up it consumed about 22watt, with a 1uf cap it will run at this frequency using 3watts and still disturb your neighbours, apperently. Let me know what you think.
    Last edited by Floris; 03-11-2013 at 10:57 PM.

  2. #32
    Hi folks,

    Anyone tried the MSD DIS-4 for cars using direct ignition? I have the book and the DIS-4 with resistor less parts and diodes, etc. But I just can't get the plasma to appear. I am in desperate need of help. I'm triggering manually by grounding the white trigger wire into the ground... The only thing left to try is to check for poor earths. I'm using Accel Superstock leads and Torque Master plugs.

    All the best,
    Rikard

  3. #33
    Hey Arron
    I just ordered the MSD 5520 Street Fire Ignition to fit to my car which I will then convert to your plasma system.
    I was lucky enough to see an original Tesla coil in operation last year in Colorado Springs. It was the size of a normal car coil and sent out blue sparks that didn't shock you.
    Out of interenst, have you ever tried using such a coil for engine ignition? I wasn't sure if that type of spark ignites fuel.
    Also, what things should I beware of when I convert my car ignition? eg: Will it wear out spark plugs or cause any internal damage?
    Its a 1992 VW Golf with 2litre 16v VW Jetta engine that will have a EFIE kit fitted to adjust the oxygen sensor voltage and lean out the fuel mix.
    regards,
    Torsten

  4. #34
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by energyrikard View Post
    Anyone tried the MSD DIS-4 for cars using direct ignition?
    I'd be very interested in this too. I'll need the MSD DIS-2 to use with my Subaru ignition waste spark setup.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  5. #35
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by antechnola View Post
    Hey Arron
    I just ordered the MSD 5520 Street Fire Ignition to fit to my car which I will then convert to your plasma system.
    I was lucky enough to see an original Tesla coil in operation last year in Colorado Springs. It was the size of a normal car coil and sent out blue sparks that didn't shock you.
    Out of interenst, have you ever tried using such a coil for engine ignition? I wasn't sure if that type of spark ignites fuel.
    Also, what things should I beware of when I convert my car ignition? eg: Will it wear out spark plugs or cause any internal damage?
    Its a 1992 VW Golf with 2litre 16v VW Jetta engine that will have a EFIE kit fitted to adjust the oxygen sensor voltage and lean out the fuel mix.
    regards,
    Torsten
    I haven't tested that for ignition, but an autotransformer - the regular ignition coil is invented by Tesla.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  6. #36
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by antechnola View Post
    Hey Arron
    I just ordered the MSD 5520 Street Fire Ignition to fit to my car which I will then convert to your plasma system.
    I was lucky enough to see an original Tesla coil in operation last year in Colorado Springs. It was the size of a normal car coil and sent out blue sparks that didn't shock you.
    Out of interenst, have you ever tried using such a coil for engine ignition? I wasn't sure if that type of spark ignites fuel.
    Also, what things should I beware of when I convert my car ignition? eg: Will it wear out spark plugs or cause any internal damage?
    Its a 1992 VW Golf with 2litre 16v VW Jetta engine that will have a EFIE kit fitted to adjust the oxygen sensor voltage and lean out the fuel mix.
    regards,
    Torsten
    Hi Torsten,

    Yes, spark plugs will be worn down quicker. If the plasma is small enough with the small caps in the CDI/MSD units, no engine damage. So only use the smallest milijoule discharge CDI/MSD's you can get.
    Aaron Murakami





    You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. ― Richard Buckminster Fuller

  7. #37
    Hi,

    I have a subaru too (waste spark) and I have tried the sparkamp x40 High Performance Ignition Systems > Ignition Kits

    but at this time I didn't retarded ignition timing so the change was not as it could have been

    I am curious about the method for retarding ignition timing, maybe efie (cts, maf, o2, ???)

  8. #38
    krisskool,

    isn't it so that when an engine gets hot the ECU can retard timing to avoid knocking? Perhaps we could adjust the sensor signal in a way to trick the ECU into thinking the engine is hotter than it really is thereby retarding timing?

  9. #39
    yes and that's why I think about an efie for hho : retard ignition and reduce fuel injection

  10. #40

    Exclamation

    Hi again,

    I have tried two set ups and none of them gives me plasma. I am getting desperate...

    I'm using resistorless Accel Superstock leads. Resistorless Torque Master from extremespark.com

    First set up
    MSD 62153 DIS-4 HO ignition box http://www.msdignition.com/WorkArea/...id=15032386156
    MSD 8232 Single Tower Cil Single Tower Coil, CPC Ignition - 8232
    20x 6a100

    Second set up
    MSD 5520 ignition box http://www.msdignition.com/WorkArea/...id=15032386133
    MSD 8201 Pro Power Coil (for drag racing and not entirely compatible with the 5520)
    http://www.msdignition.com/WorkArea/...id=15032386206
    20x 6a100

    Battery is properly charged. Ground is good. I get good sparks from the CDI boxes. Diodes directed as in the book and on the shortest possible path as described. Coil polarity is positive. No plasma.

    I've come to the point that I've tried almost everything and I can't figure out what's wrong. I have tested the diodes one by one and they are OK. Have 2 other strings that show the same values that I have tested with as well....
    I'm thinking that the coils are not good for creating plasma, but it's two brand new and different coils with totally different properties. That both of them can't do plasma is a bit far fetched... Another thing I'm thinking of is that the wire I'm connecting the diode string with to the terminals is too thin.. As you can see, there's not so much left to try...

    Here's a pic of the second setup:
    plasma setup 5520 with 8201.jpg

    P.S.
    Diode string temporarily disconnected as you can see...
    Last edited by energyrikard; 03-20-2013 at 05:34 AM.

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