How many of you out there use gaped sparkplugs? I am having high RPM breakup and I have read several threads where people recommending using gaped plugs as a cure but I just wanted to get another opinion on it.

Thanks

 

I run them, they seem to be doing good.

 

Which ones are you running with what gap?

 

Some NGK 10's with stock gap recomended by my builder.

Sry don't know the part number.

 

Everyone is fine with all 9s or the stock 7s and 9s setup.
Maybe it is just time to change yours out with new ones or check out other possible problems. I don't think not having gapped ones is your problem.

 

i'm not familiar with gapped plugs

i don't see how you gap the plugs? am i stupid?

 

I've been using gapped NGK B10EGV plugs for a while. They do seem to reduce break-up at high RPM for me under high boost. You need a thin-walled spark plug socket to install them. They are not surface-discharge plugs, so you can adjust the ground electrode to set the gap. I have read that they reduce power slightly versus surface-gap plugs, but if you get break-up with the surface-gap plugs and don't get it with the B10s, it would seem to reason that you will get more power with the B10s. I have been too thrifty to spring for the NGK rotary racing plugs yet. B10EGV plugs are less than $10 each (I think I paid $5 or $7).

-Max

 

We're talking about running non RE plugs, just normal plugs that go with pistons

 

So you run 10s all around? I just wish my local auto stores carried NGK plugs...can anyone think of another local place that could carry them? Besides online ordering.

 

advanced auto parts carries them

 

I think mine are the same that Max is running.

I'm running 10's all around and you need a very thin wall socket to change them. You should be just fine will all 9's unless you're heavily modified.

I have to get the 10's from a motorcycle shop.

 

I got mine from a local motorcycle shop, too. That was an interesting conversation. They still had to special order them, but it didn't cost me anything and I had them in a few days. I think I got some from sparkplugs.com as well.

There is an Iridium version with an X in the part number that might be worth a look, too. B10EIX might be that part number, but that is just from memory -- I am not sure it's right.

-Max

 

i run the 10's also. i sometimes switch them to the 11's....

 

Does anyone have a part number for the NGK racing plugs

 

Alright, I got the plugs but what is the best way to gap the plugs...I have been trying to get to .022" but the darn outer electrode is not budging...am I missing something?

 

I got 11.5 and the car runs shitty util warm! So they are
only installed if engine is warm! Track Use.

JP

 

I use the gap they come pre set with.