COP Thread
#210
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I've been meaning to post this for awhile. I just took some pics. Take it back a few days before I did COP. I had this ocassional misfire under boost which I attributed to "weak Miata ignition" I kept reading about. I switched to COP and the misfire went away. After COP was on and working I ran the car a few weeks to see how it went. Not one misfire. I decided I should pull the plugs and check the color for some visual insite as to how things are running. I pulled #1 (good) #2 (good) #3 (HOLY ****!) #4 (good). Autolite plugs in there?!? (I asked myself) I thought I replaced those a long time ago. Turns out I didn't and I've been running plugs that were actually a heat range hotter then stock! Now add the ford probe, non intercooled, no engine management, no ignition retard, detonating diy setup I ran for monthes and I know exactly how this plug got like this. I've been running/tuning on them for over a year now!
Point is... COP fired this plug with 12psi of boost (pig rich@10.6 af) without a misfire. The other plugs were at .045" That speaks quit a bit about how well the COPs are actually working. =)
![Name: DSCF1052Medium.jpg
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Point is... COP fired this plug with 12psi of boost (pig rich@10.6 af) without a misfire. The other plugs were at .045" That speaks quit a bit about how well the COPs are actually working. =)
![Name: DSCF1052Medium.jpg
Views: 862
Size: 77.7 KB](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/216142d1501272869-cop-thread-dscf1052medium.jpg)
![Name: DSCF1053Medium.jpg
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#218
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60 a set?!!!![](https://www.miataturbo.net/images/smilies/cool.gif)
Anyone interested in sending some down to Oz? (Nobody seems to want to part with any of these here for less than 250
)
These may work as well, I thought about them but he won't ship to me either :'(
Lazy Ebayer
PS: Great forum and great thread...
Long time lurker first time poster.
Loving the boosted side of life.
![](https://www.miataturbo.net/images/smilies/cool.gif)
Anyone interested in sending some down to Oz? (Nobody seems to want to part with any of these here for less than 250
![](https://www.miataturbo.net/images/smilies/eek.gif)
These may work as well, I thought about them but he won't ship to me either :'(
Lazy Ebayer
PS: Great forum and great thread...
Long time lurker first time poster.
Loving the boosted side of life.