Can someone please tell me what the gap is supposed to be at for the NGK Iridium IX BKR7EIX-11. I tried to search but nobody really pin points the gap spec. I was thinking that they were pre gapped at .032 but one is .033 and the other in the package was .040.

Thanks!

 

I would just gap them all the same Jtack. You should be ok with that. I used to run .035 with my Denso plugs. As far as I know an oscilloscope is the only way to confirm the correct gap.

Jeremy

 

thanks...upon closer look the pre gap on all were .043 - .044 so I will keep them all at that.

Thanks!

 

They should be pre-gapped at .043" as the -11 suffix indicates pregapped to 1.1mm.

 

uh,uh..... just this week ngk told me to go with the smaller gap 1 step colder iridiums, i.e., NOT the -11s, for the mods i have on a mcs.

 

The #7 is already a step colder than stock heat range. As Billzcat1 said, the 11 = 1.1mm but you can always decrease the gap by adjusting the negative / ground electrode.