Hi guys, I have searched for plug colours, but couldn't really determine a definite "status" so to speak.

My plugs are mainly white with a hint of copper colour.

I know copper colour, the mixture is pretty much spot on, but i'm just worried about the white colour.

Am I right to assume i'm running slightly lean?
A bit confused as I have read in other topics that the white colour is sometimes "ok"...

I drive a boosted civic, running about 12psi of boost. Any advice if I should turn up the fuelling a little bit, just to be on the safe side or just leave as is..?






Thanks in advance guys.

 

When were the plugs pulled? If you want a proper reading of them... do a WOT pull and just at the end of it turn off the car and drift to the side of the road. Pull plugs and THEN take pictures

 

Thanks for the quick reply, plugs were pulled after a short run(normal drive coming back from town, hitting boost a few times), not on WOT though.

I don't really want to give it a WOT pull until i know what my plugs are "telling" me..

Or is that just me being a *****? Lol.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by carlip &raquo;</TD></TR><TR><TD CLASS="quote">Thanks for the quick reply, plugs were pulled after a short run(normal drive coming back from town, hitting boost a few times), not on WOT though.

I don't really want to give it a WOT pull until i know what my plugs are "telling" me..

Or is that just me being a *****? Lol.</TD></TR></TABLE>

In that case, if you are that nervous about it.. wideband the pull ... but to get a real reading about WOT and where the real pressures are... you need to pull them then. Partial throttle driving will show lean if car is running properly. Idle and partial are supposed to be and will cover up WOT conditions.

 

Again, thanks for the quick reply, a WOT pull may be in order then....lol

Thanks splitime

 

What (if any) fuel management do you have? 12psi depending on turbo could be dangerous to a stock motor. I'd give alot more info to us before you go about doing 12psi WOT pulls

 

Well here's my spec engine-wise:

Apexi Power FC
Apexi Power FC Boost kit
Apexi Power FC Commander
OEM headgasket
OEM cambelt
Walbro GSS342 255L in tank fuel pump
Garrett T3/T04e hybrid turbo
TiAl 38mm external wastegate
Branch turbo manifold
2.75" custom downpipe
Megan de-cat pipe
Front mount intercooler
RC 440cc injectors
Eagle H-beam 4340 forged steel connecting rods
ARP 2000 3/8" connecting rod bolts
JE forged high silicon 2618 aircraft alloy pistons 9.5:1 compression ratio
JE Pro Seal piston rings
HP Racing 6 pot big brake conversion
Fidanza stage 3 6-puc clutch
Fidanza 8.5lb 6061 aluminum lightened flywheel
AEM fuel rail
AEM fuel pressure regulator
NGK BKR8EIX iridium spark plugs
MSD Blaster 2 external ignition coil
MSD Red power distributor cap with extra coil tower
Skunk2 Stage1 cams
Skunk2 titanium valve retainers
Skunk2 SAE EV8 stainless one-piece forged valves
Skunk2 valve springs
Skunk2 AL7075-T6 billet aluminum adjustable cam gears
Nology HotWire spark plug leads
Tanabe Super Medallion Racing exhaust system
Mocal 13 row oil cooler
Tanabe NF210 suspension
Lightened power steering pulley
Lightened crank pulley


It's just awaiting a full map, but the problem with living in the UK, hardly anyone can map the Power FC, the guy who is regarded as the best for mapping the Power FC is up in Scotland and I'm all the way down south in England. To be honest, i think i just need to get my *** into gear and get it mapped.


*note, the spark plugs I have literally, just put in, the spark plugs shown are a set of NGK-R for the stock B16.


Thanks again.

 

Plugs are probably 6 heat range, I'd run a 7 btw. bkr7e.

And yeah... I'd get it mapped

Sounds like a good parts listing though, I know basically nothing about the Power FC... so anything there... gluck with

 

Cool, thanks with that splitime.

I've got some NGK Iridium ones in now, in the 8 heat range..

Thanks for the help.

 

.

 

you have all that stuff in ur engine and no EGT/Wideband???!!!

Those were the first things i got when i got "serious" with my build [as it seems u r]

 

I bought a crappy A/F ratio gauge and then took it out.

Think i'm going for an AEM UEGO wideband as my next purchase.

Thanks for the heads up turbotime.

 

I would reccomend the plx 300 or the Lm1 by innovative widebands over the aem uego. And with as much money invested in your setup it is very very foolish to not have a properly hooked up wideband. I would hide the keys or somthing until you have the money to buy one. Your in the dark without one. Good luck!

 

*searches for widebands*

 

hehe yeah i personally went with the m300, easy to use and almost plug n play.

For EGT look into megan racing gauges on ebay- they make one for $95 with probe which in terms of egt- is a killer deal (compare to $200+ with greddy)

Looks like you gotta killer setup! Just need to know what going on in the combustion chambers now

 

Yeah, got the el cheapo Megan gauges already(boost and oil pressure), so the EGT gauge would match nicely..lol

Just had a quick browse on the wideband sensors and gauges, am swaying towards the PLX one due to ease of installation.

Thanks again turbotime.