View Poll Results: Are Iridium spark plugs worth it?
Hell Yes!
9
13.43%
Hell No!
21
31.34%
Not Sure
14
20.90%
WTF is iridium?!?
23
34.33%
Voters: 67. You may not vote on this poll
Iridium plugs- Worth it?
02-11-02, 03:37 PM
#2
I wish I had a posse...
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Unless they make a "NGK-Style" then you'll also be installing a new engine along with those plugs.
This is because some spark plugs may "interfere" with path of the apex seal. In other words...put those plugs in and watch pieces of apex seal go out your exhaust.
This is because some spark plugs may "interfere" with path of the apex seal. In other words...put those plugs in and watch pieces of apex seal go out your exhaust.
02-11-02, 04:17 PM
#7
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Trending Topics
02-11-02, 04:18 PM
#8
I'm a boost creep...
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Well I found this test (Google again!) which seems pretty positive. A 750hp improvement is pretty good from spark plugs, I might get some! 
http://209.132.206.136/content/pht/pht20010101ds.xml
http://209.132.206.136/content/pht/pht20010101ds.xml
02-11-02, 05:38 PM
#11
we...yota...
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Ok, if the center electrode is Iridium, what about the rest of the uh... outer plug thingie that the spark goes to(i really can't for the life of me think of what its called). I have an MSD that seems to be ripping up my plugs kinda quickly, especially my rear rotor. The center electrode is worn but the outer uh... thing is really worn, and makes for a much larger gap. If these things really last, I might look into getting some. Any more info there?
02-11-02, 07:39 PM
#14
Installed a set Of Denso iridium plugs in my '89 TII ($50.00) the only time I've installed something different than the NGK since it was new. No noticeable increase in performance, but the trailing #1 plug ceased firing in 800 miles. Replaced with NGK no problems.
02-16-02, 04:39 PM
#17
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Please help me understand.
Hey All,
Perhaps there are some veterans out there that can enlighten me.
My impression was that you want a plug to provide a reliable spark. If you dont' have any or significantly many (at least) misfires, then your plugs should be doing the job. What performance improvement can you make if your plugs are firing reliably all the time?
I have been using NGK Platinums 7s and 9s, so I'm curious IF this makes a difference, and if it does, how SIGNIFICANT is the difference? Is it worth the coin..?
Thanks...
/F/
Perhaps there are some veterans out there that can enlighten me.
My impression was that you want a plug to provide a reliable spark. If you dont' have any or significantly many (at least) misfires, then your plugs should be doing the job. What performance improvement can you make if your plugs are firing reliably all the time?
I have been using NGK Platinums 7s and 9s, so I'm curious IF this makes a difference, and if it does, how SIGNIFICANT is the difference? Is it worth the coin..?
Thanks...
/F/
02-17-02, 03:45 PM
#18
I'm a boost creep...
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Re: Please help me understand.
Originally posted by Forseti
My impression was that you want a plug to provide a reliable spark. If you dont' have any or significantly many (at least) misfires, then your plugs should be doing the job. What performance improvement can you make if your plugs are firing reliably all the time?
I have been using NGK Platinums 7s and 9s, so I'm curious IF this makes a difference, and if it does, how SIGNIFICANT is the difference? Is it worth the coin..?
My impression was that you want a plug to provide a reliable spark. If you dont' have any or significantly many (at least) misfires, then your plugs should be doing the job. What performance improvement can you make if your plugs are firing reliably all the time?
I have been using NGK Platinums 7s and 9s, so I'm curious IF this makes a difference, and if it does, how SIGNIFICANT is the difference? Is it worth the coin..?
Rotaries do like a nice strong spark. If you look at the spark plug holes on the inside of a rotor housing you'll understand why. The spark is actually recessed away from the chamber, unlike a piston engine where the spark is right in the chamber.
BTW, I've heard/read in several places that platinum (not iridium) plugs actually don't perform quite as well as regular plugs. Manufacturers specify them because they last 100,000km, not because of their performance.
05-05-02, 08:09 PM
#22
Senior Member
Ok, if the center electrode is Iridium, what about the rest of the uh... outer plug thingie that the spark goes to(i really can't for the life of me think of what its called). I have an MSD that seems to be ripping up my plugs kinda quickly, especially my rear rotor. The center electrode is worn but the outer uh... thing is really worn, and makes for a much larger gap. If these things really last, I might look into getting some. Any more info there?
05-06-02, 12:23 PM
#24
Three spinning triangles
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Originally posted by RETed
Damnit, who voted on this thing!
These things cost at least $30 per plug!
-Ted
Damnit, who voted on this thing!
These things cost at least $30 per plug!
-Ted
HOLY $HIT !!!!!!!!!!
