All motor itr all stock. Its a jdm with high compression with 4-1 oem header intake and exhaust. I know this has be asked before but I just ordered ngk plugs from sparkplugs.com (PFR7G-11) and their gaped to 0.044. Should I leave them be or I heard people mention that 0.035 is good. What up with the gap size. Hullar back

 

go with your recommended gap size. it should be in your manual or you can call the dealer

 

if its a stock motor, gap by the book.

 

0.035 is better than 0.044

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rocket &raquo;</TD></TR><TR><TD CLASS="quote">0.035 is better than 0.044</TD></TR></TABLE>

why?

 

There's less chance that the flame kernal will be blown out. Your spark event will be more consistent especially at higher rpms.

 

I always gap my motor/plugs to .035 but my motor is high compression (12:1).
I thought that gapping a stock motor/plugs lower will make the motor run rich, so
it's not really necessary unless you want to waste gas. Oops. I guess I'm wrong.
Gap at .035.