I have a 00 type r with JDM engine and i need to know the correct plug gapping. I have asked around and nobody seems to know for sure. I can fudge it but id rather not....

 

1.1

 

the NGK honda replacements come pre gapped.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R you serious &raquo;</TD></TR><TR><TD CLASS="quote">the NGK honda replacements come pre gapped. </TD></TR></TABLE>

But please still check. I just installed the NGK replacement plugs last week and several of the gaps were off a bit...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueR &raquo;</TD></TR><TR><TD CLASS="quote">1.1</TD></TR></TABLE>
or .044.

It's not terribly important, I run mine gapped at .025 anyway.

 

Yeah, definately always check.

Bit OT: Where do you guys usually pick up your plugs from? I usually go to Autozone or something...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by P Nut &raquo;</TD></TR><TR><TD CLASS="quote">Yeah, definately always check.

Bit OT: Where do you guys usually pick up your plugs from? I usually go to Autozone or something...</TD></TR></TABLE>

NAPA or Autozone or wherever I'm driving past for BKR7E's. I think I'm switching to the 8 heat range, which is a racing plug, so I may end up mail ordering those.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">It's not terribly important, I run mine gapped at .025 anyway. </TD></TR></TABLE>

That might be best for a turbo car, but somewhere in the area of 1.1 mm/ .040" is appropriate for a N/A ITR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zygspeed &raquo;</TD></TR><TR><TD CLASS="quote">

That might be best for a turbo car, but somewhere in the area of 1.1 mm/ .040" is appropriate for a N/A ITR. </TD></TR></TABLE>

I need to add "take this with a grain of salt" to my signature.

...but that's why I suggest it isn't a critical measurement. If I can idle, cruise and go WOT with a 0.25 gap, and others can drive cars for 100,000 miles (or however long) on OEM plugs, then it's probably not all that hugely important.

 

I'm running 0.8 gap on my IK22 densos (heat range 8 i think) I also have HAMP VK22s which are rebadged densos and they have a 1.1mm gap, i stuck them in to see if i could tell of any noticeabel difference but both feel identical. I think with regular copper plugs you need to keep as close as possible to the recommended gap of 1.1, but it doesnt seem to have any effect on the iridiums if theyre gapped smaller

 

thanks

 

There's an article from a tuner in Grassroots Motorsports in the latest issue on spark plug gaps. Pick up a copy.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueR &raquo;</TD></TR><TR><TD CLASS="quote">1.1 mm</TD></TR></TABLE>

(FYI new comers)