Hey guys doing maintance on my Z.Changing out doing the Iridium NGKs at 67K.What is the factory gap on the plugs for the Z?doing huge maintance...Plugs..Motul super coolant,Motul rear diff and tranny fluid..motor oil.Bought everything from MyNismo.com..good shipping for those wondering!
But spark plug gap would be appreciated!

 

According to that handy little thing called the Owners Manual, it should be 0.043" or 1.1mm

 

My car didnt come with the manual..couldnt search it...Thanks.

 

No manual? No problem! Look at the bottom of this page...
http://www.courtesyparts.com/350z/index.html

 

Yes ---run the Iridiums in the #5 heat range and .043

 

I've read that you shouldn't try to gap the NGK iridiums. Can anybody confirm this?

 

Thats been at times the case..but chk them anyways and the main thing is balance on all 6. Who's to say the box wasnt dropped and closed a gap ???
As a rule, a wider gap will give you a slightly hotter spark----NOT a hotter plug----Apples and Oranges there.

 

Although ---Iv had a set of coppers in mine now for 30,000 miles ---Im due and will prob go back to a Platnum