NGK Iridium BKR7EIX & 2.9" pulley. What gap would be better? .40 or .35?
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NGK Iridium BKR7EIX & 2.9" pulley. What gap would be better? .40 or .35?
I'm kinda new to the whole changing spark plugs thing but my car has been idling weird lately & I bought some NGK Iridium IX (BKR7EIX) ONE STEP COLDER plugs. I'm not sure what these are pre-gapped at or what they should be at.
Now I've heard some people say "Don't gap these plugs! They will break!"
I've also heard people say "They can be gapped."
I have a 2.9" pulley & was wondering, if I can gap them, what would be best? .40 or .35? The factory plugs are gapped at .45, right?
Someone let me know what would work best with my setup without over doing it. Any help is much appreciated!
Now I've heard some people say "Don't gap these plugs! They will break!"
I've also heard people say "They can be gapped."
I have a 2.9" pulley & was wondering, if I can gap them, what would be best? .40 or .35? The factory plugs are gapped at .45, right?
Someone let me know what would work best with my setup without over doing it. Any help is much appreciated!
Last edited by ViSiONZ; Jun 23, 2008 at 04:53 PM.
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From: Fort Wayne Indiana
I'm kinda new to the whole changing spark plugs thing but my car has been idling weird lately & I bought some NGK Iridium IX (BKR7EIX) one step colder plugs. I'm not sure what these are pre-gapped at or what they should be at.
Now I've heard some people say "Don't gap these plugs! They will break!"
I've also heard people say "They can be gapped."
I have a 2.9" pulley & was wondering, if I can gap them, what would be best? .40 or .35? The factory plugs are gapped at .45, right?
Someone let me know what would work best with my setup without over doing it. Any help is much appreciated!
Now I've heard some people say "Don't gap these plugs! They will break!"
I've also heard people say "They can be gapped."
I have a 2.9" pulley & was wondering, if I can gap them, what would be best? .40 or .35? The factory plugs are gapped at .45, right?
Someone let me know what would work best with my setup without over doing it. Any help is much appreciated!
Thread Starter
Senior Member
Joined: 01-21-07
Posts: 781
Likes: 0
From: Ontario, Canada
Thread Starter
Senior Member
Joined: 01-21-07
Posts: 781
Likes: 0
From: Ontario, Canada
New Member
Joined: 01-30-08
Posts: 187
Likes: 0
From: Fort Wayne Indiana
he is saying that because on Iridium plugs usually the tip breaks off if you try and gap them, yeah i agree go with copper if you want to gap them.
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I already have iridiums, I'm sticking with them for now.
Will .35 run good for a 2.9" pulley? I see you have a 2.6" so it might be different...
Will .35 run good for a 2.9" pulley? I see you have a 2.6" so it might be different...
Last edited by ViSiONZ; Jun 22, 2008 at 12:58 PM. Reason: Automerged Doublepost
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I'm kinda new to the whole changing spark plugs thing but my car has been idling weird lately & I bought some NGK Iridium IX (BKR7EIX) one step colder plugs. I'm not sure what these are pre-gapped at or what they should be at.
Now I've heard some people say "Don't gap these plugs! They will break!"
I've also heard people say "They can be gapped."
I have a 2.9" pulley & was wondering, if I can gap them, what would be best? .40 or .35? The factory plugs are gapped at .45, right?
Someone let me know what would work best with my setup without over doing it. Any help is much appreciated!
Now I've heard some people say "Don't gap these plugs! They will break!"
I've also heard people say "They can be gapped."
I have a 2.9" pulley & was wondering, if I can gap them, what would be best? .40 or .35? The factory plugs are gapped at .45, right?
Someone let me know what would work best with my setup without over doing it. Any help is much appreciated!
They can be gapped but again I wouldn't bother when you could just buy the same ngk 1 step colder (or autolite 3922?) plugs and not have a problem changing the gap if necessary.
I run a 2.8, same gap, but the 8eix
Last edited by theneelster; Jun 22, 2008 at 10:39 PM. Reason: Automerged Doublepost
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I've got the 2 step colder plugs and the factory gapping is .35 as I remember. I'd say leave it there and don't break the 7 dollar plug.
They can be gapped but again I wouldn't bother when you could just buy the same ngk 1 step colder (or autolite 3922?) plugs and not have a problem changing the gap if necessary.
I run a 2.8, same gap, but the 8eix
They can be gapped but again I wouldn't bother when you could just buy the same ngk 1 step colder (or autolite 3922?) plugs and not have a problem changing the gap if necessary.
I run a 2.8, same gap, but the 8eix
The iridiums I have are the 1 step colder plugs. So you're saying just leave them the way they are and it should be fine?
Last edited by ViSiONZ; Jun 23, 2008 at 04:54 PM.
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