Some people say to increase the gap from the standard 1mm to get a better spark and increase performance......true or bull****??

I read in zoom that u can get significant power gains if you fiddle around with it, but unless your dead sure what the gap should be you'd prolly have to take it to a dyno. When zoom did it - some gaps took away power while others added a bit. .....Its probably easier, cheaper and more effective to index you plugs

Quote: Some people say to increase the gap I thought it was the other way around, you close the gap slightly.

With a lot of boost some times you can BLOW the spark out

Basically, the bigger the gap, the bigger the spark, the better ignition you get... BUT if you're running 15psi for example on std ignition system, you might have to reduce the gap to .8 or so so it's not blown out... If you do this, you get a smaller spark, but probably still get better power,as youre not blowing out the spark anymore... general rule is set the gap as big as your ignition system can handle...

what gap do you recommend with N/A VL with standard ignition system, NGK sparkies...

Hey all from what i have been told is that if you are running bigg boost - ie 15psi plus - best thing to do is greatly reduce the gaps - this prevents spluttering at top end - cheers Some original photos have not been recovered yet.