More Product Info-Iridium Spark Plugs |Dezod Motorsports LLC|
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More Product Info-Iridium Spark Plugs |Dezod Motorsports LLC|
Well, with some slow call volume and such this afternoon, we had a small office debate on differences in Iridium Plugs.....Denso VS NGK. So we had the convo and were talking about it and then someone whipped out a set of Densos we had here......I busted it out the NGK Iridiums we had, and we then talked how a turbo car wanted a thick contact electrode, and so on and so forth and we will let the photo do the talking.
That's right, NGK had a thicker electrode and overall won the office consensous as the better value plug. Cheaper than Denso too.
That's right, NGK had a thicker electrode and overall won the office consensous as the better value plug. Cheaper than Denso too.
Last edited by dezod; Apr 4, 2006 at 05:36 PM.
Originally Posted by dezod
Well, with some slow call volume and such this afternoon, we had a small office debate on differences in Iridium Plugs.....Denso VS NGK. So we had the convo and were talking about it and then someone whipped out a set of Densos we had here......I busted it out the NGK Iridiums we had, and we then talked how a turbo car wanted a thick contact electrode, and so on and so forth and we will let the photo do the talking.
That's right, NGK had a thicker electrode and overall won the office consensous as the better value plug. Cheaper then Denso too.

That's right, NGK had a thicker electrode and overall won the office consensous as the better value plug. Cheaper then Denso too.

When turbo charging I often wonder about couple of things ragarding the gap on this iridium plugs.
First can this plugs be gaped?
If they can't is factrory set of .040 ok for turbo
If if they can be gaped, should we at 0.30
And who to do it.
Or may be is better to leave them alone?
Any advice would be appreciated
Oh, I just installed the Denso IK20 I'll be tuning again on thursday.
Thanks Paul
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Originally Posted by Supermex
Good subject Paul
When turbo charging I often wonder about couple of things ragarding the gap on this iridium plugs.
First can this plugs be gaped?
If they can't is factrory set of .040 ok for turbo
If if they can be gaped, should we at 0.30
And who to do it.
Or may be is better to leave them alone?
Any advice would be appreciated
Oh, I just installed the Denso IK20 I'll be tuning again on thursday.
Thanks Paul
When turbo charging I often wonder about couple of things ragarding the gap on this iridium plugs.
First can this plugs be gaped?
If they can't is factrory set of .040 ok for turbo
If if they can be gaped, should we at 0.30
And who to do it.
Or may be is better to leave them alone?
Any advice would be appreciated
Oh, I just installed the Denso IK20 I'll be tuning again on thursday.
Thanks Paul
First can this plugs be gaped?
Almost every plug can be.
If they can't is factrory set of .040 ok for turbo
If if they can be gaped, should we at 0.30
I would say between .26-.3 for a turbo car is fine.
And who to do it.
A $0.99 spark plug gapper from Walmart and you can do it yourself.
Or may be is better to leave them alone?
You can. It should be fine unless it's pre-gapped at like .5 when .4 is required.
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Dezod sent me IK20 few months back, so I'm sticking with them for now.
Before Denso, my turbo'd d17 was working on Copper Champion plugs.
Can not say anything +/- abouth either.
I know turboengnr was recommending generic Autolite (?) plugs, but I could only get generic Champions...In mt personal opinion, generic copper plugs do job tip-top without fear of burnt electrode.
Before Denso, my turbo'd d17 was working on Copper Champion plugs.
Can not say anything +/- abouth either.
I know turboengnr was recommending generic Autolite (?) plugs, but I could only get generic Champions...In mt personal opinion, generic copper plugs do job tip-top without fear of burnt electrode.
Originally Posted by dezod
First can this plugs be gaped?
Almost every plug can be.
If they can't is factrory set of .040 ok for turbo
If if they can be gaped, should we at 0.30
I would say between .26-.3 for a turbo car is fine.
And who to do it.
A $0.99 spark plug gapper from Walmart and you can do it yourself.
Or may be is better to leave them alone?
You can. It should be fine unless it's pre-gapped at like .5 when .4 is required.
Almost every plug can be.
If they can't is factrory set of .040 ok for turbo
If if they can be gaped, should we at 0.30
I would say between .26-.3 for a turbo car is fine.
And who to do it.
A $0.99 spark plug gapper from Walmart and you can do it yourself.
Or may be is better to leave them alone?
You can. It should be fine unless it's pre-gapped at like .5 when .4 is required.
Is just that the electrode is soo thin is hard to see it and easy to brake.
I'll like to gap them but last time I broke one.
Aren't IK 20's come set up at .040...?
I hope that is correct cause I didn't checked mine.
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Originally Posted by Supermex
Is just that the electrode is soo thin is hard to see it and easy to brake.
I'll like to gap them but last time I broke one.
Aren't IK 20's come set up at .040...?
I hope that is correct cause I didn't checked mine.
I'll like to gap them but last time I broke one.
Aren't IK 20's come set up at .040...?
I hope that is correct cause I didn't checked mine.
Gap on them is .044
http://www.densoproducts.com/results...artNumber=IK20
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Originally Posted by CIVIC X3
which plug is better for the stock d17 engine? i've search and many debate on this question...so what do you think dezod...
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Originally Posted by aznboysrfr
iirc, a thinner electrode will result in a stronger/hotter spark... true?
"The shape of the plug electrode is important. The sharper the electrodes (both of them!) become, the easier it is to ionize the air between them. If I take two smooth brass ***** of 3" diameter and put 10,000 Volts across them, I can get a spark to jump when I push them to within about 0.125" of each other. If I take two long, sharp needles pointed at each other, that same 10,000 Volts will still spark when they are 1.5" apart!
We'd much prefer that the burn happen in a very smooth, ideally hemispherical manner to produce a smooth pressure curve inside that chamber. By keeping the electrodes sharp, we unshroud the spark as much as possible, allowing the maximum contact between the spark and the air/fuel mixture, making it ignite more easily and the burn spread more smoothly"
Too sharp an electrode tip will create a "hot spot" in the combustion chamber. Even if you don't reach the melting point of the metal, you can still get it glowing hot.
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