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Thread: Plasma Ignition | Plasma Jet Ignition

  1. #821
    The first results with the modified NGK are:

    #1 2.8% reduction in fuel consumption.
    #2 misfiring at high revs.

  2. #822
    Quote Originally Posted by Richard View Post
    Nice find.
    Thanks.
    gotta help your brothers out, right?

  3. #823
    Quote Originally Posted by Richard View Post
    See if you can get a Samsung S9+ cellphone to try out. They have a 720 fps slow motion camera mode.

    Richard Gieser
    right, the event happens so quickly, a higher frame rate camera is the only type that can catch it. I have an app on my iphone that does as much as 1000fps, but it eats through memory very quickly at that frame rate.

  4. #824
    I am leaning to connect in parallel the secondary of two ignition coils, because having a 4.5 mm gap, voltage deficiency is observed in high revolutions.

    Their power supply will be independent, the one from the standard ignition and the second from the special module which gives the plasma.

    Some tries give a perfect result, simultaneously in high and low revs, but somewhere, in some cases, there is a misfiring under heavy load, although the distributor cap has no signs of arcing. There must be an arcing, somewhere, though...

    Two high voltage ignition coils and a plasma unit, feeding the spark plugs, seems as a promising solution. On the other hand, the plasma module gives some signs of overheating struggling to give high current for the plasma and for the second ignition coil.
    Last edited by Hellenic Vanagon; 06-17-2018 at 12:05 PM.

  5. #825
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by Hellenic Vanagon View Post
    I am leaning to connect in parallel the secondary of two ignition coils, because having a 4.5 mm gap, voltage deficiency is observed in high revolutions.

    Their power supply will be independent, the one from the standard ignition and the second from the special module which gives the plasma.

    Some tries give a perfect result, simultaneously in high and low revs, but somewhere, in some cases, there is a misfiring under heavy load, although the distributor cap has no signs of arcing. There must be an arcing, somewhere, though...

    Two high voltage ignition coils and a plasma unit, feeding the spark plugs, seems as a promising solution. On the other hand, the plasma module gives some signs of overheating struggling to give high current for the plasma and for the second ignition coil.
    With MSD or CDI, it is normal to have less plasma at higher rpm. The problem is the cap charger in the units cannot keep up with higher rpm. MSD - can trigger 6-7 times per trigger at lower rpm but as the rpm increases, it may only discharge 1 time per trigger. I don't know for sure this is your issue, but this is very common and expected.
    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. #826
    Quote Originally Posted by Aaron Murakami View Post
    With MSD or CDI, it is normal to have less plasma at higher rpm. The problem is the cap charger in the units cannot keep up with higher rpm. MSD - can trigger 6-7 times per trigger at lower rpm but as the rpm increases, it may only discharge 1 time per trigger. I don't know for sure this is your issue, but this is very common and expected.
    I am using this, smart kit, unit:

    1058_1.jpg

    I thought that the problem is due to the low speed diodes.

    Anyway, adding a second ignition coil, there is a very substantial improvement in the high revs, letting the plasma to support the low and middle revs operation, as well as, forbidding the fouling of the extra cold spark plugs.

    The implementation becomes, progressively, complicated and demanding.

    The dialogue with the management of my engine, (a spare mr. Digifant ), continues in a polite mood, (at least for the moment).
    Last edited by Hellenic Vanagon; 06-17-2018 at 01:46 PM.

  7. #827
    Networking Architect Aaron Murakami's Avatar
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    Quote Originally Posted by Hellenic Vanagon View Post
    I am using this, smart kit, unit:



    I thought that the problem is due to the low speed diodes.

    Anyway, adding a second ignition coil, there is a very substantial improvement in the high revs, letting the plasma to support the low and middle revs operation, as well as, forbidding the fouling of the extra cold spark plugs.

    The implementation becomes, progressively, complicated and demanding.

    The dialogue with the management of my engine, (a spare mr. Digifant ), continues in a polite mood, (at least for the moment).
    I'm only guessing that the extra coil hv spark helps to ionize the gap better so that at high rpm, the cap which cannot get full charged to a higher voltage is able to still discharge. Does the high rpm plasma still look just as strong as low rpm or is it smaller?

    Where did you get that kit?
    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

  8. #828
    Quote Originally Posted by Aaron Murakami View Post
    I'm only guessing that the extra coil hv spark helps to ionize the gap better so that at high rpm, the cap which cannot get full charged to a higher voltage is able to still discharge. Does the high rpm plasma still look just as strong as low rpm or is it smaller?

    Where did you get that kit?
    #1 The plasma seems that disappears above 3500-4000 rpm.

    #2 Smart Kit electronics: https://quasarelectronics.co.uk/Item...ronic-ignition
    (But it seems it is not available any more).
    Last edited by Hellenic Vanagon; 06-18-2018 at 01:17 AM.

  9. #829
    Now I am in position to confirm it: the diodes 6A 1000v are slow and do not permit the plasma discharge above a middle rpm limit.

  10. #830
    Quote Originally Posted by Richard View Post
    If your Smart Kit ignition system is not potted in epoxy it would be very nice of you to post component values and any corrections to the circuit that they are showing on their website link, for example, they show the gate of the SCR going to the junction between a cap and resistor instead of the original ignition points.
    Details on the transformer is always useful in these ignition circuits since most of the time getting the transformer is more difficult than all the rest of the project.

    Thanx.

    Richard Gieser
    No, no epoxy.

    I have these two documents only, (some words in Greek but it is coded in English. For any help please tell me):


    smart kit 1.jpg
    (click on the image to enlarge)

    smart kit 2.jpg
    (click on the image to enlarge)

    Do you want a photo of mine? (A little bit differentiated than that of the brochure, I don't know why).


    A question, if someone knows: are there diodes faster than p600, (6A 1000V), in series, but bulletproof as the p600? Thank you.
    Last edited by Hellenic Vanagon; 06-18-2018 at 12:37 PM.

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