jlm_photo
jlm_photo New Reader
6/3/10 11:53 a.m.

I am workin on my wifes DD 01 Jimmy and I was debating on putting e3 plugs in it. I want to try to pick up a couple MPG but wasn't sure if the extra price was worth it. They are about double the price of other plugs. BTW, I am putting in a K&N filter to help out MPG too. Any advice would be a huge help.

ReverendDexter
ReverendDexter Dork
6/3/10 12:03 p.m.

Guy on the Mustang board I frequent just put some in his New Edge Mach 1 and started having some a few issues with idling and the like.

He's gonna swap back to some regular plugs, I'll let you know how that goes.

dean1484
dean1484 GRM+ Memberand Dork
6/3/10 12:32 p.m.

You know they really should take a look at the past and learn form it. I can see the E3 plugs repeating this series of historical milestones.

This: http://neptune.spacebears.com/cars/legal/splitcom.html

Then this: http://neptune.spacebears.com/cars/legal/splitagr.html

Followed by this: http://neptune.spacebears.com/cars/legal/splitdec.html

And Finally this: http://neptune.spacebears.com/cars/legal/split.html

How about an E3 Splitfire plug????? Wait. .. .

dean1484
dean1484 GRM+ Memberand Dork
6/3/10 12:35 p.m.

Didn't I see somewhere in the last year in GRM that they tested all the different brands of plugs and came to the conclusion that there is no difference between them? I seem to remember reading that in one of the issues I have by my.. . . Well.. . .. It is where many of us do our reading of back issues. LOL

jlm_photo
jlm_photo New Reader
6/3/10 12:39 p.m.
dean1484 wrote: You know they really should take a look at the past and learn form it. I can see the E3 plugs repeating this series of historical milestones. This: http://neptune.spacebears.com/cars/legal/splitcom.html Then this: http://neptune.spacebears.com/cars/legal/splitagr.html Followed by this: http://neptune.spacebears.com/cars/legal/splitdec.html And Finally this: http://neptune.spacebears.com/cars/legal/split.html How about an E3 Splitfire plug????? Wait. .. .

Point well taken. I'm sure if they make any difference it would be within +/- 2%.

jlm_photo
jlm_photo New Reader
6/3/10 12:42 p.m.

Just found this.

http://green.autoblog.com/2007/10/21/dont-count-on-e3-spark-plugs-to-save-you-money-on-gas/

Per Schroeder
Per Schroeder Technical Editor/Advertising Director
6/3/10 12:49 p.m.

No improvements when we tested them.

Per Schroeder
Per Schroeder Technical Editor/Advertising Director
6/3/10 12:49 p.m.

Wait, I take that back, our wallet was lighter, so we went faster.

jlm_photo
jlm_photo New Reader
6/3/10 12:57 p.m.

Thank you. I'll stick to the $3 plugs instead of spending $7.

P71
P71 GRM+ Memberand SuperDork
6/3/10 1:22 p.m.

Another automotive magazine (Street Thunder, the mag for the Street Machine Club) did an impartial dyno test on a dozen plus different plugs. The E3's lost ~20HP and the review they included was scathing. The highest HP was the $1.99 plain NGK's.

jlm_photo
jlm_photo New Reader
6/3/10 1:26 p.m.

OUCH! The e3's I was looking at were actually $7.99 each. That's a big gap.

Strizzo
Strizzo SuperDork
6/3/10 2:08 p.m.

snake oil, the sad part is that they've actually gotten the sat/sun morning car show guys hocking their crap as well.

i read a page a while back that explained why there is really no magic bullet with spark plugs. i can't find it now, but i'll paraphrase and hopefully not screw it up.

the power contained within a spark is directly related to the amount of power required to bridge the gap. the amount of power required to bridge the gap is also directly related to the resistance of the material the electrodes are made of.

so, if you have a copper plug at .028" gap, it requires X volts to arc across the gap at 1 atmosphere. the power contained in that spark is then Xs. if you then replace your copper plug with a platinum plug, which has a lower resistance electrode, it then requires Y volts to bridge the same .028" gap, where Y = (X * 0.8). therefore, the energy produced by that spark is then Ys, less powerful than using a copper plug.

where people got the idea that platinum plugs meant more power comes from back in the day when ignition systems were less powerful and more likely to be in poor condition. if you had a weak ignition system, to the point where it had trouble firing a copper plug consistently, replacing the copper plug with a plantinum plug would mean that there was a lower voltage required to produce a spark. the weak ignition system could then consistently fire the plug. the result is that you then feel a relative increase in power, but you are still not making as much power as you would be with the copper plugs and a healthy ignition system.

one possible advantage to platinum plugs is that the lower electrode resistance allow you to run a larger gap while still not exceeding the limit of the ignition system. by doing this, the system produces a same or similar power spark, but it is larger than it would/could be with a copper plug. this allows for more consistent and even fuel burning within the cylinder, which can increase power and fuel mileage.

basically, if you can run a copper plug at .050 and not missfire, then you don't need platinum plugs, and you definitely don't need any E3 snakeoil ever

dean1484
dean1484 GRM+ Memberand Dork
6/5/10 3:39 p.m.
jlm_photo wrote: OUCH! The e3's I was looking at were actually $7.99 each. That's a big gap.

Oh man; Bad pun of the week for sure.

jlm_photo
jlm_photo New Reader
6/5/10 9:11 p.m.
dean1484 wrote:
jlm_photo wrote: OUCH! The e3's I was looking at were actually $7.99 each. That's a big gap.
Oh man; Bad pun of the week for sure.

Yeah, no kidding.

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