spark plug

[Tzar177]

should plugs be this dirty and oily after only 2000-3000 miles?

[B1GHAM]

that sparkplug actually looks very clean. theres no buildup rust or colored residue.

Keep in mind that a LITTLE bit of dirt is normal, as you are technically setting off mini controlled explosions in the combustion chamber.

[B1GHAM]

http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

great link BTW... it will help you with A LOT of questions regarding sparkplug wear.

[Kansei]

That's usually how my plugs look after a few thousand miles. Some carbon buildup is normal. I don't bother with the iridium plugs on my car though because they don't really seem to last much longer and cost a hell of a lot more.

[Tzar177]

what will happen if the gap is too small on a N/A setup?

[Kansei]

did you measure the gap or does it just look small? I know you aren't supposed to regap the iridium plugs though..

[Tzar177]

did you measure the gap or does it just look small? I know you aren't supposed to regap the iridium plugs though..

it says its not recommended to gap iridiums....but i decreased the gap just a bit. there are about .037 now from .044

[BigB]

Those plugs look pristine.

BTW NGK Coppers work just fine in our cars for 1/4 the price of the Iridiums.

BKR6E-11

[Kansei]

^^ or ZFR6F-11

[BigB]

^^ or ZFR6F-11

There's not much difference between the ZFRs and the BKRs. I have found though, that the BKRs are much easier to find.