what are u guys gapping your spark plugs at? with the colder iridium plugs???

 

i think its supposed to be at .030"

 

is that for fi or nitrous application???

 

Colder plugs on nitrous should be .036

 

thanks gary

 

Stock gap on reg heat range plugs are .44, i gapped mine at .40, but i haven't sprayed on that yet. What do you guys think, .40 shouldn't be too bad on a 75-100 shot right?

 

stock gap on 1 step colder copper plugs

 

i have some regular ngks gapped at .35 its been workin pretty good but i have a set of colder just lazy to put them in

 

i have been palying with .40-.42

 

stock gap .44 works just fine unless you're running big boost

 

Please check the STICKIED thread first before asking questions.

BTW, I see a huge range of spark plug gaps. My question is, does this really matter that much, seeing how there's such a wide range of gaps being used by different members? What are the advantages/disadvantages of smaller gaps and wider gaps?

 

Smaller gaps are a little safer for your motor, bigger gaps = a little more power. smaller gaps are usually for big boost motors to help prevent misfires and spark blowout.

 

I've always just taken them out the box and installed them.