How exactly should plugs look when FI? Reason being is mine are mainly black with a little bit of white on the porcelin and some gray on the insulator. I've seen all the plug sites with descriptions etc. But how do most of you guys with turbo hondas plugs look?

 

that sounds fine.

my plugs look WHITE cause i run lean at part throttle to get good gas mileage.

 

my friend told me that white specks = detanation

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d15b7racer &raquo;</TD></TR><TR><TD CLASS="quote">my friend told me that white specks = detanation</TD></TR></TABLE>

not 'white' but 'aluminum' colored specks.... these would be made from aluminum that is now missing from the pistons.

Jeffrey Atwood

 

But isnt white heat? See theres so many answers and opinions I dont know what to go on lol.

 

A plug that's gone through detonation typically looks like you ran it through a garbage disposal. I have a plug at home from my '93 GS-R that had alot of blow-by in #4, and there was some serious detination in there that utterly decimated the plug.

Greyish-white is fine, the super bright white insulators with blisters and aluminum specks are what you want to avoid.

 

hrm so my flat white is ok. See I was under the impression any light grey and white was a sign of leaning out. Needless to say I dont boost much untuned what so ever. But I havent now in like 2 weeks because it bugged me out. Goin to get tuned next week tho.