Originally Posted by
bigmatt
I have always used os-p3 plugs. I tried the 97t's but they don't last for gallons like the p3's. I'm not sure why when I try p-4 with 30% the engine just doesnot want to preform as well as with the p-3's. Am I tuning wrong flanno? or is it the part of the world I'm in?
Does it feel sluggish down low and wont hold an idle with a cooler plug ??
Do you retune to the cooler plug (richen top and reset bottom then fine tune top) ??
a cooler plug should last longer as the element is thicker and should give it more torque, a hot plug seems snappy down low as it advances the timing, idles strong even if bottom is a little rich, but lacks torque.
I hope I make sence, I know what I'm trying to describe, not know if it's translating correctly to how I mean!
Difference between being snappy and being torque.
My old 5 port, I'v even gone down to a P7 on 25% in a pinch, it ran great on track, the only problem was a tempermental/unreliable idle when stopped for too long like durring fuel stops etc
So honestly without being there I'm not sure if it's ya tuning or has to do with where ya live bud.....
