Plug gap, last question

[John Larkin]

Tired subject but one more question: Can I run a 0.30" - 0.32" gap all the time? I don't want to pull plugs and re-gap between street and track duty. Would there likely be fouling on the street with a close gap like that?

 

[10SECONDVSIX]

I gap them at .030

No problem

 

[Fred 86 GN]

Should be no problem on the street. All the slightly smaller gap does is decrease the spark kernel size and increase the intensity. Makes it harder to "blow out" at high rpm and "hotter" to ignite the highly compressed a/f mix. Only down sides I can think of is that a smaller kernal will not ignite the a/f mix as well as a big ol' spark will. Maybe some of the a/f won't get burnt as well. We are only talking 0.005" gap change here, so it is not like going from .070" to 0.020".

Can't imagine there would be a problem.

Let us know if there is!