I have NGK 1 step colder plugs in my car right now and in second gear to 5th under boost at high rpms they start to blow out. It sounds like my car is misfiring but its not no codes yet and im wondering what plugs i should get. I run around 25lbs of boost and im on 93 right now but ill be using e30 in the next week. I was told copper plugs but not sure which ones

 

Totally off subject but how did you gap your NGK's? I was thinking about getting that but I really don't like that I can't gap the with a gapper? /offtopic
I was talking to someone on the forums and they were telling me to run the stock plugs but at a smaller ga,p, somewhere around .29-.31

 

What's your gap on those plugs?

I've always said to stick with stock plugs and possibly gap a bit tighter.

 

I told him what you told me ahha

 

Yeah. All personal experience with the plugs. I've tested out 3 sets already and all of them at various gaps and boost levels. I've had the best luck with Stock AC Delco's and gapped pretty close to .030 if running at or above 24 psi.

It's all varying depending on how the car will react to what plugs you put in and what gap.

 

I have same plugs in my car gapped at .028

 

You can use a gapper to measure the gap but you cant use it to actually open the gap up on the plugs.
you have to use needle nose pliers to carefully adjust it.

 

Ok, I just didn't feel comfortable doing it like that. knowing me and how clumsy I am I'd break them.

 

they are gapped around .32 ill get stockers and gap those to around .29 or so see how they do