E3 Spark Plugs

Discussion in 'Touring Models' started by Quadcab666, Apr 2, 2010.

  1. Quadcab666

    Quadcab666 Member

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    Has any one used the E3 Spark Plugs and are the worth it?
     
  2. glider

    glider Veteran Member

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    HD stock plugs work just fine. The only thing the fancy plugs do better is empty your wallet faster.

    It only takes one spark from one electrode to ignite the mixture, 3 of them don't do it any better.
     
  3. Jack Klarich

    Jack Klarich Expert Member

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    Well said
     
  4. Iceman24

    Iceman24 Well-Known Member

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    Ran them in my riding mower once & then the repair shop swapped them 6-months later when I had it serviced (forgot to tell them they didn't need replacement). Talk about throwing money away - literally. Listen to glider - stick w/the HD plugs.
     
  5. ultrat

    ultrat Senior Member Contributor

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    I am trying H/D high compresion plugs so far ok..
     
  6. ooheritage

    ooheritage Active Member

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    Note the flame kernel's projection toward piston head
    Flame moves toward piston and bulk air/fuel mixture - less quenching on cylinder walls
    Reduced time delay in flame growth - shorter path to piston head
    Faster flame growth compared to standard plugs
    Larger flame kernel moves heat faster into combustion chamber
    Larger flame front creates more localized pressure, making a faster pressure rise in cylinder during the power stroke
    I seen the demonstration on one of the hot rod tech shows and thought I would try it, I noticed a bit of cough now when I turn my bike off not every time but sometimes, can't notice anyother differences. The shop I take my sccot to recommeneds NGK, he owns 4 Harleys and services many bikes for many m/c's
     
  7. tomp

    tomp Member

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  8. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Thanks Tomp for the interesting read...I remember reading about the advantages of side gaping, but did not know that was the concept with the E3 plug designs. Certainly worthwhile to experiment to see if there IS an advantage.

    May want to do it on my next set of plugs...always interested to try something new. Of course with stock HD plugs and Stage I setup per Gliders recommendation (thanks again by the way) I squeezed out 49.5 mpg (3 tankfuls highway, only stopping for gas, out in Northern California on my Sporty this weekend. One 1 year HD plugs (used Gold shell finish (luster has since turned silver) this Easter weekend.
     
    Last edited: Apr 4, 2010
  9. Quadcab666

    Quadcab666 Member

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    Thanks Guys.....I love this forum. You get straight answers and opinions on what has been tried and how it worked. Thanks again
     
  10. Jack Klarich

    Jack Klarich Expert Member

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    Old racing tip , like indexing plugs, it does work tho not many know of this almost a lost art, Knowledge is power only if its used, that is a Quote by the author of The Big Twin Performance Guide who talks about this and many other little known facts to make you faster on race day, Jack