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E3 Diamond fire

This is a discussion on E3 Diamond fire within the External Engine forums, part of the LSx Technical Help Section category; does anyone run these plugs, i seen a review of them on horsepower tv this weekend and they tested them ...

  1. #1
    Member 02fbody35th's Avatar
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    E3 Diamond fire

    does anyone run these plugs, i seen a review of them on horsepower tv this weekend and they tested them on an engine dyno and they showed an increase in horsepower. I never thought a plug could make such a differance, i never used the most expensive plugs but never the cheapest either. Any one think these plugs would make a differance or had succes with them in their LS?

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    MEMBER 5150's Avatar
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    I've been using them now for about 6 months. What i noticed the most was a little quicker throttle response.

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    Join the PHK @ thephk.org Sommer86@6LE's Avatar
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    ^^ No shit? It was noticable? Hhhhmmm...What do they cost? Think it's worth a try? Are they sold at Autozones and such? Are they gapped any differently?

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    I was a kid and I bought them and put them in my truck when they first came out. Starts better, revs better but they are way to expensive. Cant gap them. Ngk 55s are the way to go IMO but if you have 100 bucks to blow on plugs go ahead. Im sure they will yield some results

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    Join the PHK @ thephk.org Sommer86@6LE's Avatar
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    Gotcha!...go to know. Thanks, Joshie!

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    Army Dude robcas47's Avatar
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    I asked this same question here a while back and got mixed reviews, some think these plugs are crap and stay loyal to NGK, others really didn't have much to contribute to the thread. I haven't tried them on my LS1 yet cause I got a good deal on some msd wires and NGK plugs together. I have tried them on an older sbc and was satisfied with them, I plan on using them on after these NGK's have served their time also.

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    Member km346's Avatar
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    If you want a fancy plug run the tr55IX Iridium's or Delco Iridium plugs... otherwise don't waste your money. Your not going to make more power because of a spark plug. That being said, if your plugs are old and worn you'll see an improvement in changing them no matter what plug your running.
    Last edited by km346; 05-17-2009 at 08:12 PM.

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    MEMBER 5150's Avatar
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    Quote Originally Posted by Sommer86 View Post
    ^^ No shit? It was noticable? Hhhhmmm...What do they cost? Think it's worth a try? Are they sold at Autozones and such? Are they gapped any differently?
    Their about $6.00 a peice from summit.You don't gap these plugs. You'll see if you decied to purchase them. I changed out from the NGK's and noticed a difference and the plugs weren't that old. It's up to you.
    Their a bit of a pain to change out in our cars but I did it.

  9. #9
    Join the PHK @ thephk.org Sommer86@6LE's Avatar
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    I looked on summits site....$6 each. I think i'll stick to NGK's unless i get a deal locally!

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    Member nillam1's Avatar
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    Check out the ZEX powertune plugs, there similar with 3 additional grounding straps. I am happy with mine!
    2002 Camaro Z28 Bolt ons, Flowmaster catback w/3" QTP electric cutout, Superchips tuned, Granatelli MAF, SLP cold air induction Lid & filter, ZEX powertune plugs, Taylor 10.4mm wires, 160 T-stat w/fan control, Eibach sportlines & BFG-KDW's on 17" SLP SS rims.

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    Make real real sure Johns00Z28's Avatar
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    NGK TR55s for the win.

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    Crap!!! We installed a set in my friends 03 GMC and he had all kinds of cold start issues. We swapped them out for a set of NGK's and never had the problem again.
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    Member nillam1's Avatar
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    Quote Originally Posted by NoscamaroSS View Post
    Crap!!! We installed a set in my friends 03 GMC and he had all kinds of cold start issues. We swapped them out for a set of NGK's and never had the problem again.
    What's crap? ZEX plugs? If that's what your talking about Zex makes 2 kinds of plugs POWER TUNE'S and POWER RACER'S! Which ones did you install?
    Last edited by nillam1; 05-18-2009 at 11:20 AM.

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    Spaz is My Mentor SMWS6TA's Avatar
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    I was asking this 2 weeks ago and also got mixed reveiws. I went with the NGK's they are way cheaper and have a far better rap the the E3 plugs. Also Horsepower ran a comparison test this weekend with the E3 and 2 other "un-name" brands. Their test showed a 1 HP gain and a little better fuel economy. I'll wait a while before I try them...

  15. #15
    Member NoscamaroSS's Avatar
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    Quote Originally Posted by nillam1 View Post
    What's crap? ZEX plugs? If that's what your talking about Zex makes 2 kinds of plugs POWER TUNE'S and POWER RACER'S! Which ones did you install?
    No the E3's

  16. #16
    Member nillam1's Avatar
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    Quote Originally Posted by NoscamaroSS View Post
    No the E3's
    OK!

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by 5150 View Post
    Their about $6.00 a peice from summit.You don't gap these plugs. You'll see if you decied to purchase them. I changed out from the NGK's and noticed a difference and the plugs weren't that old. It's up to you.
    Their a bit of a pain to change out in our cars but I did it.
    worth noting that the ngk 55s are copper so they should be replaced about every 20k ..so even though they weren't too old..they were probably well worn out

  18. #18
    Member nillam1's Avatar
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    Thumbs up

    Quote Originally Posted by shady milkman View Post
    worth noting that the ngk 55s are copper so they should be replaced about every 20k ..so even though they weren't too old..they were probably well worn out
    every 20K, WOW! I did not know that. I thought the NGK's were the plugs to have. My "ZEX POWERTUNE" plugs have COPPER core surrounded by NICKEL, I hope they last longer than 20K, my knuckles are still healing, LOL.

  19. #19
    MEMBER 5150's Avatar
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    Quote Originally Posted by shady milkman View Post
    worth noting that the ngk 55s are copper so they should be replaced about every 20k ..so even though they weren't too old..they were probably well worn out
    Nope! Maybe 3000 miles on them. Just wanted to try the E3's.

  20. #20
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    No spark plugs SHOULD EVER give you a gain in power.

    They are maintainence, not a modification.
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