spark plug gap

[sal]

what gap is everyone running? i currently have .032 but am putting a new one in and all the new ones are .028 out of the box. any recommendations? and whats best for performance? thanks

 

[scotj77]

anywhere between .028 and .032 is fine. that is the range in the manual

 

[sal]

thanks for replying, but i was also wondering if there is a difference, performance wise or anything? run cooler,hotter, make it leaner or richer?

 

[scotj77]

My expirience is this tiny difference isn't going to really change anything. anyone correct me if i'm wrong

 

[sal]

cool i was just wondering. thanks. Does it effect timing at all?

 

[scotj77]

can't effect timing the stator tells the spark plug when to spark. it just effects the length of the actual spark and not duration. the spark will be either .028 or.032 whatever you set it at. I would set it at the larger end personally just bc a bigger spark means a better fule ignition. but you can't go too big or the compression can actually blow the spark out kinda like a match gets blown out.

 

[sal]

thats sounds good to me. heres some green for ya.

 

[scotj77]

thanks man! back at ya.

 

[royalt67]

If you had a stronger coil, then there would be a bonus to a larger gap, a bigger spark has a better chance of igniting fuel. (like an HEI GM distributor) The problem is that it takes a significantly stronger spark to cross a larger gap, whether the requirement grows exponentially or not, I'm unsure. With a stock coil, you go with stock gap.