Does this tell you anything?

[CSMsi311]

I recently put some new copper spark plugs in my car. (BCPR7ES-11) So far i think my car runs a lot better. It takes an extra crank to get the engine going, but that is the only side effect.

These are the stock plugs that came with my Si. I know you can tell how the engine is doing by looking at the plugs. Anybody have any thoughts?

[CSMsi311]

sorry for the large picture. i'll try and make it a little smaller

[CSMsi311]

ok, it's smaller

[stu]

I don't know much about plugs, but it looks cleaner than most of the ones I've seen.

[exciv2000]

That looks great, not too rich, not too lean. But then again, did you pull those after idleing a bit or ??

[Brian]

Maybe even a bit on the lean side, but it's hard to tell without looking at them in person.

[CSMsi311]

they were in the car for about 24,000 miles. what about the red flaking happening on the top of the plug? i thought that was odd.

I'll have to find the pictures of the old copper plugs i use to run. the ceramic part was actually tinted green.

Jason

[exciv2000]

I think the flaking is just from the heat going in and around the ceramic, nothing to worry about I don't think, unless your plugs are like 100K k miles old.