I know some guys are gapping all the way down to 16-18 now. Is there any downfall to going TOO tight on a gap? Ive seen a lot of times people say start high and work your way down to what works.

 

well my plugs are at .014 and made 685 whp on 32.5 psi

 

Usually the most gap you can run without blowing out the spark the better. The only real thing I have seen sometimes, is a tight gap can give a little rough idle. Richening the mixture usually helps a little.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">Usually the most gap you can run without blowing out the spark the better. The only real thing I have seen sometimes, is a tight gap can give a little rough idle. Richening the mixture usually helps a little.</TD></TR></TABLE> thats what i was always told.. thats why you run msd or any ignition box to open the gap more without getting spark blow out

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1QwIkEf &raquo;</TD></TR><TR><TD CLASS="quote"> thats what i was always told.. thats why you run msd or any ignition box to open the gap more without getting spark blow out </TD></TR></TABLE>

ok but why not just run oem ignition w/ a tighter gap to get rid of spark blow out?

 

running .013 gap...idles 14.7

 

.017 gap here 730+whp on dynojet stock ignition

 

You guys with the tight gap have no other issues that arise after taking the gap so low? Street driveability or decrease in life of plug?