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Discussion Starter · #1 ·
I have got a set of BCP7EVX NGK Platinums as many people seem to be using with phase 2 and i was wondering what the gap should be for around 0.9-1.0 bar held boost.
i wonder if the plugs are the cause of my exhaust popping.
currently using the stock ones from Opel.
 

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tb303 said:
I have got a set of BCP7EVX NGK Platinums as many people seem to be using with phase 2 and i was wondering what the gap should be for around 0.9-1.0 bar held boost.
i wonder if the plugs are the cause of my exhaust popping.
currently using the stock ones from Opel.
there the wrong plugs !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 

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hmm i didnt even need to sort out gapping on mine :confused:
 

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Discussion Starter · #6 ·
so BCP7EVX no good?
I saw on a lot of threads that many people were using them.
 

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Discussion Starter · #8 ·
0.6mm and i got misses. i had installed the plugs in the past gapped 0.6mm but i was running superchips then.
 

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neverfound no probs with bcp7evx's
 

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Discussion Starter · #11 ·
Chris,
I know you didnt.
I saw all the threads you posted.
I know someone recommended these plugs for me and that's how i got them.
What gap are you using?
Did you get them pregapped or did you gap them yourself?
I wonder if i damaged them or something.
Are you running Phase 2 by the way.

cheers
 

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Discussion Starter · #13 ·
Sup bro?
Mine misses on middle to high revs and not on idle.
I am using the stock opel plugs, gapped to 0.6mm and get no missfires.
I just thought of replacing them as the exhaust is popping (the explosions i was telling you about / ended up replacing CAT and popping still there) as someone suggested that maybe the plugs are hot.
Have replaced the turbo manifold to engine block gasket if that helps.
 

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i used bcp7evx on phase 2 gapped at .60 had no probs and so is my mate in his corsa phase 2 gapped at .60 with no probs etc
 

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Discussion Starter · #17 ·
Adam,

I think those are for stock boost pressure. Just better sparks i think.
Damn exhaust is still popping!!!
 

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Discussion Starter · #18 ·
so, do you know what plugs i should get for my car guys?
i am a bit confused.
everyone says i should get NGK IRIDIUM IX BKR7EIX-11. As i found out you cant gap these as they break. I contacted some company in US that sell them very cheap and they told me the gap is 0.044". Is that ok?
is there any plug i could buy not needing regapping as it seems that i damaged two sets of plugs trying to gap them to 0.6?
 

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I'd like to know too mate . I'm using ngk's gapped to 0.6mm atm but will check number .
 
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