01-18-2006, 08:41 PM
i have a svt with a vortech on it iam running 8psi i have azfs22c spark plugs in it they have 12,000 miles on them i pulled them out today and the end melted back the metal part of it a shop told me its to strong of spark but its stock.the car was and is running fine do i need a difrent plug?
01-18-2006, 10:19 PM
You should get a colder plug.
01-19-2006, 08:02 AM
The AZFS22C is fine, its the best all around plug for FI on the Focus. You may want to change them out a little sooner, I change mine about every 5k miles.
What kind of gap you running?
I'm gapped at .035 running 19psi and they do great, no misfire or deto.
01-19-2006, 05:24 PM
" i pulled them out today and the end melted back the metal part of it a shop told me its to strong of spark but its stock."
First this shows what the shop there knows about reading plugs, I would like to see a picture of the plug to see how far the wire was burned back and to see what else is going on in the combustion chamber by looking at the plug , There is only one thing that will melt off the wire and that is excessive Cyl Temp either from lack of fuel , to much timing or got some bad low octane fuel and ran it hard
The AZFS22C is one step colder and seems to work fine to about 320HP
01-20-2006, 10:19 AM
...maybe even up to 340hp...?[thumb]