Don't know the 4.0 too well, but if you gap the plugs say over .050-.055 on the V8, it will screw up the timing. A wider gap makes the spark take longer. I know it sounds crazy. That stuff in the link is the same as the first post, Davis Unified Ignition. Actually I think that gear looks pretty cool. Just a little pricey.
After looking again, the gear in the first post does not say DUI. The coil sure looks the same tho. The stuff you posted is DUI.
Not sure if it increased performance, didn't change the Champion copper plug gap from .035, but still getting 18mpg so can't complain.
Originally Posted by HighLonesome
I noticed cap/rotor don't last as long. Higher voltage erodes the contacts faster. That's my theory anyway, not positive of it.
Don't know about it eroding the inside cap contacts as fast but I was surprised to find the middle coil wire socket on the cap as corroded as it was. And this was with a fairly new cap and new wires. I need to get rid of the new junk Autolite wires I bought and just bought some Denso's. Also just bought a better brass contact cap w/rotor instead the the aluminum contacts cap which came with a new Remy distributor.
"Great danger lies in the notion that we can reason with evil"
...We use words like honor, code, loyalty. We use these words as the backbone of a life spent defending something. ...I have neither the time nor the inclination to explain myself to a man who rises and sleeps under the blanket of the very freedom that I provide, then questions the manner in which I provide it. I would rather you just said thank you, and went on your way, Otherwise, I suggest you pick up a weapon, and stand a post...
I bought the HI-WAY BLASTER HORN that's 139dB and every time I honk the horn an Angel dies.
16 - He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads,
17 - and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.
18 - Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: (Real ID and RFID chips)
Think about it...