LT1-LT4 Modifications 1993-97 Gen II Small Block V8

E3 Spark Plugs- opinions?

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Old 03-04-2013, 10:43 PM
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Lightbulb E3 Spark Plugs- opinions?

Hi, guys. I am wondering if the e3s are actually as good as advertised, or is it just bs like a lot of stuff out there. More particularly on LT1s. Anybody tried these? How were they with power, gas mileage, overall performance of the engine and durability? Or should I go with AC Delco platinum?



P.S. the search can't do 'e3' because it's too short -.- . Well that surely sucks... Oh well.
Old 03-04-2013, 10:52 PM
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A gimmick. AC Delco is just fine especially if your f-body is stock. All you need is the right spark plug gap and a healthy coil and you're good to go.

You can even go with NGK irridiums if you have stock cast iron manifolds since they are a bitch to change. They'll outlive your car. I still have them in mine.
Old 03-05-2013, 12:03 AM
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I don't have them in my LT1 but I have had E3s in my Cobra for the past 20,000+ miles with no problems at all
Old 03-05-2013, 12:34 AM
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I run them
Old 03-05-2013, 05:50 AM
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For you guys that run them, do you have any legitimate data that they do anything, positive or negative? Before and after mpg, track times, dyno etc?
Old 03-05-2013, 07:26 AM
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they're f%&*ing junk in a performance application.....i tried them in my 355 when i had it and the motor ran like trash..........not to mention you cant change the gap on them.....save your money run a regular 3$ autolite, ac or ngk plug
Old 03-05-2013, 08:12 AM
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multiple electrodes is a scam, doesn't matter if it is splitfire/bosch, E3 whatever just a scam.
Old 03-05-2013, 08:41 AM
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I find the E3 plugs are more resistant to fouling and you don't have to index them. I noticed slightly better throttle response also.
Old 03-05-2013, 08:51 AM
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if your fouling plugs with an injected motor learn how to tune your car
Old 03-05-2013, 09:11 AM
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Not to mention indexing is unnecessary particularly for a mild street/strip car.
I mean if you have a aggressive car that will get several sets of plugs a year and all that sure give it a shot. Really though IMO indexing made a bigger difference on OLD stuff with crappy chambers that had poor flame travel
Old 03-05-2013, 09:43 AM
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Originally Posted by 96capricemgr
Really though IMO indexing made a bigger difference on OLD stuff with crappy chambers that had poor flame travel
yup....i tried it on mine saw absolutly ZERO difference.......i tried pointing em towards the intake towards the exhaust towards the center.......nothing didn't matter
Old 03-05-2013, 11:21 AM
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Originally Posted by NewOrleansLT1
I find the E3 plugs are more resistant to fouling and you don't have to index them. I noticed slightly better throttle response also.
You have a great imagination
Old 03-05-2013, 11:53 AM
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Maybe try some splitfires. Lol. I have seen the porcelain blown out on an e3.
Old 03-05-2013, 11:59 AM
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plugs are only as good as your wires and coil. multiple prongs are bs.
Old 03-05-2013, 12:00 PM
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i refuse to use splitfire or champion.........i had the porcelain literally shoot out of the plug on one one day.........never again
Old 03-05-2013, 12:31 PM
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Originally Posted by quik95lt1
if your fouling plugs with an injected motor learn how to tune your car
It was in my worn out TBI 350

Originally Posted by bowtienut
You have a great imagination
Thanks But I was talking real life.
Old 03-05-2013, 03:19 PM
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Personally I would prefer these instead of E3's:
http://www.briskusa.com/products.htm#premium

Old 03-05-2013, 03:29 PM
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^ i dont even think those would light in my motor with that kind of air gap
Old 03-05-2013, 04:48 PM
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I dont get the point of multiple electrodes on a spark plug. 2 or 3 weaker arcs instead of one strong arc. Maybe im wrong but it just seems like a hassle, plus how would you know if all the gaps are the same. Ive never had a problem with AC delcos in my GM vehicles.
Old 03-05-2013, 06:48 PM
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Originally Posted by cprmn14
I dont get the point of multiple electrodes on a spark plug. 2 or 3 weaker arcs instead of one strong arc. Maybe im wrong but it just seems like a hassle, plus how would you know if all the gaps are the same. Ive never had a problem with AC delcos in my GM vehicles.
There's only 1 arc.


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