DarkDragon

well i posted this in the tech. section but have only got 1 reply so ill most a link to the pics. My plugs ground is white while the area around the electrode is black, why is this?
https://honda-tech.com/zerothread?id=1250290

Racermech

http://www.dansmc.com/sparkplugs1.htm

Let me look for another one that has better info

DarkDragon

so would you say im running lean? i can adjust fuel via the S-AFC i have, the settings that its at right now are posted on the post with the pictures guess i need to get it tuned on a dyno

stumpyf4

My old plugs looked sort of like your's. White in my case was ash deposits from burning oil... r u burning any oil?

Before messing with the VAFC throw some cheapie NGK coppers in it... Generally Honda people don't seem to like Bosch plugs.

DarkDragon

i dont think im burning oil, iv done a compression test and it was 165 across the board and i have stock comp of 9.2-1 so i think that sounds right. Iv been trying to find some NGK coppers but none of the parts stores around me carry them only boshe,autolight and denso's. Know of a place to get a set?

JustinG60

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stumpyf4 &raquo;</TD></TR><TR><TD CLASS="quote">
Before messing with the VAFC throw some cheapie NGK coppers in it... Generally Honda people don't seem to like Bosch plugs. </TD></TR></TABLE>

yeh, didn't like bosch's in the GS-R, i switched to NGK 3330's

slipstreamxk1

autolites work well too.

your probably running lean but your plugs might also be hotter then what they should be. you could try just throwing a step colder plugs in and check them after a few miles.

DarkDragon

well ill have to order some NGK's i guess since no parts store stocks them here. Maybe the local speed shop, are the 3330's any colder than stock plugs? im looking to "juice" the car but when i saw the plugs I halted because i might need other work first. Thanks for all the replies

DarkDragon

also with the safc, when it shows the correction of a neg. valve such as the -8 is it adding fuel of taking away fuel? im confused on this because i know it moddifies the map sensor signal and i didnt know if it ment it was reducing the signal voltage or actully the fuel itself

cnydc2

That looks like ot is running very lean. Oil consumption would turn the end black and would foul out the plug. Check your fuel curves and richen it up before you pop a piston.

DarkDragon

and like i said before, on the safc does it add fuel in the negatives or the positives on the correction, this will be the 4th time iv asked this

cnydc2

I would reason to think that adding to the pos would richen up the mixture, but I'm not completly sure. Ask this in either the Forced Induction forum or the Tech forum.

DarkDragon

well i thought it would be positive values but when people boost they set it at -40

stumpyf4

VAFC in negative values takes away fuel.

When people us the VAFC hack on turbos they can take away fuel because they are running larger injectors.

Denso plugs are good too.... right up there with the NGK's. Pick up those.