ive just been rigging up a custom doover to mount my coil-on-plug packs in the valley between the cam covers.
however, im a little put off by how much purchase the metal sleeve inside the coilpack gets on the spark plug electrode. they only overlap by maybe 1mm or so.
more so, from what i can figure, the stock setup doesnt have much more than this
i guess the spark has to jump the gap anyway but am a tiny bit concerned by how much surface area is available? (i was suprised that the plug electrode didnt actually engage the coil pack like a spark plug as it is - bizzare)