[b]RCStephenson wrote:

I'm not sold enough on these plugs to say that it is the E3 making the difference, I honestly believe that I'd have noticed these changes by replacing the old tired plugs with any new plug. But, I'll let you know my opinion of them as I put more miles on them. Also will let you know after a few tanks of fuel if mileage improves.[/quote]

That would be interesting. I'm starting to feel like someothers on here the only difference is the amount of $$$$$

I'm not sold enough to pull out my Iridiums just yet. I'd like to hear what those who put them in a year ago have to say about them a year later..

RCStephenson wrote:
My R* seemed to be anemic lately and I'd lost about 5 mpg on the last couple of tanks of fuel. I realized that I had neglected the plugs and they should've been changed several thousand miles ago. So I read a few threads and decided I'd go ahead an give these a shot. Bought the E3.36 plugs this morning, pulled the tank, replaced the plugs and put everything back together. Old plugs didn't look bad, color was good, uniform, no unusual wear. So I clean up and fire her up, she started no problem, headed down the road for a quick 50 miles, some in town, most in the country.

What I've noticed....
Don't really feel more HP, it may be there, but not obvious
throttle response did improve (much better than before when passing)
exhaust seems quieter during shifts (might be my imagination or possibly better fuel burn?)
when maintaining a constant speed it is much smoother, before seemed to lope (this is not my imagination)
Pulled hills better, torque?

I'm not sold enough on these plugs to say that it is the E3 making the difference, I honestly believe that I'd have noticed these changes by replacing the old tired plugs with any new plug. But, I'll let you know my opinion of them as I put more miles on them. Also will let you know after a few tanks of fuel if mileage improves.


First full tank of fuel.....40 mpg (up from 35 mpg). I also corrected a bit of low air pressure on the tires today, hope that will help a bit on the next tank. I still think that any brand new plug would've shown these results.

I've only got 2600 miles on my bike with the NGK originals, I think I will put the E3.36's in just to see if it makes a difference.

I won't hold my breath though, but who knows, it may give a better burn.

Anyone with a years worth of riding on them?

Darn wrote:
I'm not sold enough to pull out my Iridiums just yet. I'd like to hear what those who put them in a year ago have to say about them a year later..


Hey Darn, what's the difference between the Iridiums (which I am running also) and the E3 I'm not planning on changing, Just like to know

coot53 wrote:
Darn wrote:
I'm not sold enough to pull out my Iridiums just yet. I'd like to hear what those who put them in a year ago have to say about them a year later..


Hey Darn, what's the difference between the Iridiums (which I am running also) and the E3 I'm not planning on changing, Just like to know

From a few people I've talked with, the E3 is supposed to be a faster spark (hotter) causing quicker throttle response and better gas mileage. But I haven't heard from anyone who's been running them for a long time yet.

If you put in a direct cross E3 plug it wouldn't be a hotter spark, the heat range would be the same. The E3 has 3 ground electrodes on it that might be helpful in a 2 stroke application and might lead to a longer plug life in any application. As far as quickness of spark ,it will only spark when the coil tells it to.

I've had the E3's in for about 12,000 to 15,000 miles. Put them in almost a year ago. Very good plugs with no throttle hesitation I have encountered w/the lesser priced plugs. I haven't gotten any better mileage with them, but they are just as good as the iridiums at a much lower price. I will stay with them , and as mentioned I expect them to last longer between changes. I usually change plugs at 15,000 miles but I plan to run these quite a bit longer. Very good plugs in my opinion.

Darn wrote:
coot53 wrote:
Darn wrote:
I'm not sold enough to pull out my Iridiums just yet. I'd like to hear what those who put them in a year ago have to say about them a year later..


Hey Darn, what's the difference between the Iridiums (which I am running also) and the E3 I'm not planning on changing, Just like to know

From a few people I've talked with, the E3 is supposed to be a faster spark (hotter) causing quicker throttle response and better gas mileage. But I haven't heard from anyone who's been running them for a long time yet.
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To add a bit to what Dave said the actual spark inbetween a sprak plugs center electrode & ground strap doesnt dictate a spark plugs heat range,its the size & lengh of the porcelin of the center electrode of the plug that dictates a spark plugs heat range.

HOW?, Well if the porcelin of the spark plugs center electrode is sized to hold/retain more heat then the center electrode of another spark plug thats sized to hold/retain less heat the plug that retains more heat in its center electrode is in fact the hotter of the 2 plugs.

So again,it's not the actual spark (or # of sparks like with E3/splitfire plugs) inbetween the center electrode & ground strap that dictates the plugs heat range like is often thought to be the case.

Just a tidbit on plugs with mutl grnd electrodes resuting in mult sparks vs 1 spark of std plug.

When Splitfire plugs came out many yrs back with the Y type ground electrodes for mult sparks they ran dyno testing in 350 cid small block chevy motors running a splitfire plug in every other cyl and a stock std AC plug in everyother cyl.

Then post runing the motors for x amount of time they removed the heads from a couple of the motors and you could actually see which cyls had splitfire plugs and which cyls had std plugs.

The cylenders with splitfire plugs that had a split Y type groundstrap that made for mult sparks each time plug fried had nice light tan looking exhaust valves & pistons showing a nice efficient combustion.

But the cyls with std AC plugs in them had dark sooty looking ex valves and pistons showing a less efficient combustion/burn.

Ady they also ran tests with 8 std plugs vs 8 spltifires back & forth in the same dyno motor and the splifires consistantly used i think it was 2.5-3% less fuel then with std plugs.

When i went from std NGK B8ES plugs to SF405D splitfire plugs in my kawi kz1000 it went from a max of 48mpg to consistantly getting 50mpg to once in a while 51mpg in same exact driving cond/same roads riding 2 up with the sparkplugs being the only change made at the time.

Between the dyno test acrticle i rvu'd showing more efficnet combustion and reduced fuel use and my personal experience of the splitfire plugs increasing mpg on my Kawi i feel the mult spark ground strap design of the splitfire plug did in fact improve combustion as proven by increased mpg on my bike and pic's of combustion chambers on the dyno motors showing cyl's with splitfires burning cleaner/more efficiently.

On the iridiums,the main positive about iridium plugs is the fine/thinner iridium wire of the center electrode takes less voltage/current to fire/generate a spark inbetween center & grnd electrod which is a plus for guys with carbs that are setup on rich end of fuel calibration making them get dirty quicker and the iridium is also more resistant to wear/gap errosion extending its srv'c life over that of a std design plug too.

Scott