E3 spark plugs

Discussion in 'Gen 3 Prius Main Forum' started by AzusaPrius, Jul 9, 2020.

  1. AzusaPrius

    AzusaPrius Member

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    Got my spark plugs returned today from E3 under warranty.

    I decided to return them during this pandemic downtime.

    Now I will take out the Bosch and put these back in. 20200709_112659.jpeg

    Posted via the PriusChat mobile app.
     
  2. jzchen

    jzchen Senior Member

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    That's a wild ground electrode design. Miss the Bosch Ir Fusion line now that they're discontinued. Hope they work well for you. What was wrong with the original set?

    moto g(7) power ?
     
  3. AzusaPrius

    AzusaPrius Member

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    I was getting misfires but that ended up being the original ignition coils.

    I just wanted something else to do to the prius so I sent them in under warranty.

    What I have in the prius now is the Bosch Double Iridium and will upload what they look like after however many miles it has been.

    Posted via the PriusChat mobile app.
     
  4. jzchen

    jzchen Senior Member

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    I'm confident double Ir tipped plugs still look new. Thank you for sharing!

    moto g(7) power ?
     
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  5. TMR-JWAP

    TMR-JWAP Senior Member

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    Can anyone direct me to a third party, head to head sparkplug test of all the different gimmick plugs vs OEM? Just curious to see actual, independant results.....
     
  6. AzusaPrius

    AzusaPrius Member

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    Google is your friend.
     
  7. TMR-JWAP

    TMR-JWAP Senior Member

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    feel free to try that. All you get is a bunch of propaganda....
     
  8. jzchen

    jzchen Senior Member

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    I'm reminded of SplitFire. Some name brand manufacturers have developed multi-ground electrode plugs with similar kernel propagation properties in mind...

    moto g(7) power ?
     
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  9. sam spade 2

    sam spade 2 Senior Member

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    EXCEPT that you need to be able to sort out the biased or totally inadequate methods......and what is left will be little or nothing.

    A spark is a spark is a spark.
    The number of available electrodes for it to jump to has absolutely NO bearing on how the spark works.

    Snake oil can look like a spark plug too. :whistle:
     
  10. jzchen

    jzchen Senior Member

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    Flame kernel propagation... The BMW N54 engine uses such multi-electrode spark plugs...

    moto g(7) power ?
     
  11. Johnny Cakes

    Johnny Cakes Senior Member

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    That's true, as far as it goes. It's still a spark. But the number of electrodes has a significant effect on how the plug works in operation. It has more places to jump to, so each place is used less, meaning longevity. However, that has its own negative consequences on engine smoothness.

    You are also correct that E3 and similar multi-electrode products are all snake oil and marketing:

    Spark plug with four ground electrodes, type-C
    This type of spark plugs was introduced by different manufactures primarily to extend spark plug durability. It is clear that there is a higher rate of combustion variability when this spark plug was used. This is explained firstly by increased contact area and heat transfer to the ground electrodes in the initial period of flame kernel growth. Secondly, it is well known that as a spark channel forms between the two spark electrodes, the local resistance increases as the localized temperature grows due to the energy flow during the spark event. After a few sparks, the local resistance becomes high enough to cause the spark to seek paths with less resistance and this moves the spark channel around over a series of sparks to prevent the “arc welding”. The rotating spark in this case changes the spark plug orientation which affects smoothness of engine operation as mentioned earlier.

    https://doi.org/10.1016/j.asej.2012.09.006
    From Ain Shams Engineering Journal which is an international journal devoted to publication of peer reviewed research papers.
     
  12. sam spade 2

    sam spade 2 Senior Member

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    Still so much BS.
    Unless the ignition system produces about 100X the voltage actually needed to jump a .035 gap, AND applies it instantaneously, there will still be only ONE spark.
    The number of potential destinations for that spark is MEANINGLESS for performance purposes.

    It might last longer.......unless the center electrode burns away first.
     
  13. jzchen

    jzchen Senior Member

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    It’s not multiple sparks, it’s the fact that the flame can propagate straight into the center of the chamber vs wrapping itself around the single center ground electrode. A more complete burn....
     
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  14. AzusaPrius

    AzusaPrius Member

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    Before anyone starts saying I work for E3 I don't, I'm just a comsumer trying products out.
     
  15. sam spade 2

    sam spade 2 Senior Member

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    Again I say BS.
    A conventional plug will create a flame propagation front that essentially goes outward in all directions because of the slight deflection of the center electrode. There is no "wrapping around". The additional flame area makes for a more efficient burn, not less.
    BUT.....the dynamics of the shape of the combustion chamber and the valves makes a LOT more difference than the positioning of the spark.
     
  16. Hybrid Ron

    Hybrid Ron Junior Member

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    Yeah, I can't imagine why anyone would say that. The fact that you picked their logo for your avatar is just a coincidence. Besides, if you worked for E3, that would interfere with your job promoting Green Bean.

    Or maybe these are both part-time gigs. :)
     
  17. AzusaPrius

    AzusaPrius Member

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    I wish during these times that I could get paid but I am not working for any of the companies I mention.

    I wonder if I said I got a part at Autozone they would say I work there too.

    Anyone want to see what the Bosch plugs look like check out my other thread on them with pictures.
     
  18. bettergolf

    bettergolf Active Member

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    AHA!!!! So....you work for Bosch!!!!
     
  19. AzusaPrius

    AzusaPrius Member

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    Funny stuff.
     
  20. jzchen

    jzchen Senior Member

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    We have a 2008 BMW 335 with N54 engine. Bosch plug is ZGR6STE2. I guessed they picked that design for absolutely no good reason, because it's BS as you say.

    moto g(7) power ?
     
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