Spark plug advice?

[black dawg]

So I've always heard not to use platinum/iriduim spark plugs, and I'm not questioning that, but what would have to be done to make an engine capable of taking advantage of them? Most new cars use them, there is obviously an advantage to using them in the right engine. But what about a newer engine makes them better? Is it just the computer control and more voltage going to the plug? Does it have to do with combustion chamber shape?

For that matter, what is it about these plugs that makes them better in the right engine than a plain ol' copper plug? I know a lot of newer cars run wider gaps, do these materials help make that possible?

I'm not actually thinking about doing anything or wanting to run them, I'm just curious.

with platinum plugs, the harder material wears much longer, meaning gap stays the same alot longer.

I use them in anything that burns clean, that I dont want to have to touch again for a long time.

 

[ryoken]

there's a reason Merc recommends standard AC Delco's in marine chevy motors.. I install over 100 sets a yr easy.

no hocus pocus, split wishbone, zeus lightning bolt, fancy schmancy stuff...

and leave Champion's for your lawnmower....

 

[4X4HIGH]

NGK V-power plugs and never look back.

 

[919jackass]

take your pick !

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