I enjoyed reading this thread. I've always made my own spark plug wires, usually with Delco Packard 440 wire, that I solder the terminals on. I just assumed that this was proper and was best. Now after reading this, I realize that, at least, there are differing opinions from some knowledgeable folks. So, I have a good understanding of basic electricity and electronics, and actually went to school for it back in the 60s. But I have never understood the use of the term "tension" when refering to plug wires. Tension, to me means that something is being pulled tight or stretched, and I've never understood how this could be related to plug wires. Could some of you guys please explain that to me.
Tension, seems a word can have different meanings. High tension voltage I suppose is an old term and could be that it was coined because of the high potential difference between the conductors is an electrical "stress". Kind of like the "tension" formed if two people are in disagreement.
If you do a bit of a study on the topic you will find a good conductor will just do a better job of transferring the current to the plug especially if the insulation has begun to break down and has moisture on it.
