need help, asap spark plug question

[mazdaspeed75]

Hey guys changing to colder plugs and putting on mbc let me now how you think this old plugs look 3000 miles on them

 

[jersey_emt]

Can we say rich??

lol

They're what I expected....

 

[CatD399]

not very good pics; can you repost with more light please? thank you!

 

[willisbr]

Wow...did you cram your pipe with those? Looks like something I could smoke out of. Is there a groove in the pin from spark wear? BTW...why are you going to colder plugs? I only see a CAI.

 

[StreetUnit]

Those are in rough shape, I replaced mine at 5k and they had only half that build up. What fuel are you using? Nothing but 93 octane from Chevron has gone in since I got it.

 

[jersey_emt]

But yeah...better pictures are needed....all I can see is a bunch of carbon

 

[mazdaspeed75]

her ethey arev

Heres a better pic hopefully also iam getting the mbc on in a minute is 47 degree to cold for about 8 or 8 1/2 thanks guys

 

[mazdaspeed75]

93 chevron with tecron thats it i just got it flashedd about two weeks ago i have ion fmic and hks bov and injen cai so hopefully 8 psi will be good for now what do you guys think getting ready to put on mbc any info

 

[RyanJayG]

can you describe the color of the electrode, its too hard to see

 

[mazdaspeed75]

h

grayish black

 

[RyanJayG]

that usually indicates a normal to slightly rich condition... it certainly wont hurt to replace them, and besides sparkplugs are fairly cheap. make sure you gap them correctly

 

[MazdaspeedNJ]

Would it be a bad idea to go with colder plugs on a stock MSP?

 

[IlliniSpeed]

Hey guys changing to colder plugs and putting on mbc let me now how you think this old plugs look 3000 miles on them

Mine looked the same way, just changed them today. I put in Bosch Platinum +4's and I can tell a considerable difference. Nothing huge, but for $25 my car runs quite a bit stronger.

 

[Wiggles6983]

I thought platinums were to hot for our car?

 

[Spooled]

I am running colder plugs on my stock MSP, but I got them when I was running 9psi. It seems to run rougher now, and I will be pulling them soon for my 15k check-up. If they look too dark, I'll probably put in some of those NGK Iridium BKR7EIX.