I just sampled a 2006 focus 2.3L Duratec Ignition Coil. Slides right in, all you have to do is swap the ignition wire and boot. I believe we could space the mounting holes higher and attach a strap across the top of the coils to contain them in the head. The focus runs a very large gap spark plug from the factory and leads me to believe the focus has very strong ignition coils vs. the SHO coils. I run a .65 copper plug gap in the focus no problem.
I also have been chasing a very annoying problem with my SHO where it has weird hesitations in the 2,500-4,000 rpm (almost like it skips a beat or reducing timing, which one i have no clue). But is is ******* me off! Once it gets over the lame **** after 4,000 pulls like a freight train.
I thought my oxygen sensor could be the culprit sense the head gasket failed on that side, so I replaced it but that didn't do the trick. And the car doesn't even throw a CEL! Anybody ever heard of a SHO that didn't throw a light during miss firing? If its not miss firing, then the only thing I can think of the computer is adding and subtracting timing, back and forth, untill the engine starts doing some rpm...
It was really bad earlier today when the outside temps were in the 100 deg range and the car heat soaked. When I got in the car at night 80 deg car rev smooth throughout the range without a hiccup. It has to be worn out coils even if the CEL light is not on.
SO, my intentions are to get 8 focus coils and install them in the SHO and look for improvement.
