Anything with the engine idle.. get any smoother.. or gas mileage get any better when you weren't romping the peddle? I'm assuming I will get a bit of restored power from the plugs I hope.. Maybe a smoother idle and what not.. I got some Bosch Plats in there now, but like I've always said.. Bosch sucks and they have no right in an import engine.
Copper plugs are the way to go.
Platinum and iridium only have a long life, thats all, no gains in power whatsoever. No you wont feel the difference either, thats just the placebo effect, unless your old plugs were so worned out they werent firing anymore.
Btw, I put the Iridiums in today.. The engine idles much smoother now.. and when I shut the engine off it is more subtle. As for "power" gains.. eh.. wasn't expecting to gain power from them. I have yet to really beat on the engine yet to see how they perform under load.
The insulator theory sounds correct to me, as no matter the gap size, theres still the same amount of electricity in the spark right? Although it may be bigger or smaller.. Therefore, same amount of electricty equals (roughly) the same amount of heat? Im guessing here...Im a 20 yr old no formal training just trying to make sense of this kinda stuff lol.