2001 Type R - 25,160 Miles - New plugs NGKpfr6g-11 - Wires NGK Blue 9775.

Where do i start? In the manual, it says the plug gap should be - .04 in. or 1.1 mm. And according to this gapper i have, 1.1 mm is not close to equal to .04 in. The new plugs, when i checked the gap on them, were .9 mm all around. Aren't they supposed to come pregapped to 1.1mm? When i checked the old plugs, they were .95 mm or .04 in. So what is the right gap to set these at? And why would Honda give 2 numbers that aren't equal to each other? Does a couple tenths of a mm make a difference? I'm so confused...

Just something i noticed about the wires - they are each about 1 in. longer than the stock ones. Other than that, they fit great.

So to make a long story short, i just gapped the plugs at .04 in. or .95 mm. I hope this is correct. Any positive comments or input would be appreciated. Thanks

 

wanna send me your old wires?

 

Just curious, why did you change your plugs and wires on a practically new car?

 

i'll give you $1 if you send them to me instead of steve.

 

**** THAT. $2 DOLLARS AND I'LL PAY FOR SHIPPING IF YOU SEND THEM TO ME INSTEAD.

 

It does have over 25k on it, so i figured it was about time. Believe it or not, the plugs look really fugly. I'm not an expert on this stuff, but the new plugs looked way better to me. I have the cap and rotor to put on, but it was getting too dark to do that. Hopefully i'll feel some kind of improvement when i go out later.

 

I think i'll hold on to these for a while. They still seem to be in real good shape. I hope the NGK's are as good of quality as the stock ones.

 

Anyone have any input on the spark plug gap issue?

 

1.1 mm = .0433070866 in
.04 in = 1.016 mm

Maybe it's your gapper that has a defect.

 

I replaced my plugs at 25k and noticed a huge difference. Didn't replace the wires

Ah well,

 

Is is better to slightly under gap than over gap?

 

how come on a b18c5 the gap is 1.1 and on a b18c1 it is 1.3?

 

My guess be higher compression demands smaller gap....

but that 0.6 certainly ain't that much more..... mrmmm...?

 

Rs/Ls/Gs is 1.1mm also.