Quote:

Moroso and CSR seem to have the market share of spark plug indexing washers. However, all I'm finding are 14mm for race car/truck plugs.

My concern is that opening the spark up like that will ultimately scar or pit the piston head or cylinder wall, which I have heard about with too-powerful ignition systems.



I assume you're talking about side gapping, no? Cuz indexing doesn't do anything that just screwing them in normally might well do. It;s just chance as to where it's pointing. So i see no reaon indexing would matter. if you are talking about side gapping, well, i'm no expert by any stretch, but i do know that unlike hot ignitions side gapping doesn't do anything like that. It just re-directs the spark so that it fires more directly at the mix in order to burn the fuel more completely. I don't see why that would be any different than simply burning more mixture as when you jet riher with more air intake. the only difference i see is you get more or less the same effect as burning a larger mix but you're getting that same burn with less fuel. I'm just speculating via common sense, and maybe someone can right me if i'm wrong. But thats what it seems like to me. Side gapping, indexing, pipes and air mods with jetting.....it all seems to me just a way of getting the most out of what you have more efficianly. None of it is anything like running a turbo or nitrous etc.