black smoke on 12.0 afr

Reply Subscribe

Thread Tools

Search this Thread

Apr 12, 2011 | 01:06 PM

aronmatic

Thread Starter

Newbie

iTrader: (2)

Joined: Nov 2009

Posts: 39

Likes: 0

From: budapest

black smoke on 12.0 afr

my freind drove behind my car today. he called me, my car is smoking on wot.
i have afr gauge. i have 12.0afr on full throttle. how can be possible?

setup:

2.3 stroker
cossie m2 cams
gt3071r atp kit
1100cc injectors

Apr 12, 2011 | 01:27 PM

VGergo

Evolved Member

iTrader: (3)

Joined: Nov 2005

Posts: 566

Likes: 1

From: Hungary

same issue with evo x fic 1100 pump gas 100 octane 11.5 afr !

Apr 12, 2011 | 02:38 PM

Ev0ikon

Evolved Member

iTrader: (18)

Joined: Jan 2004

Posts: 3,677

Likes: 11

From: 3rd Rock {from = sun}

Do you have piston-to-wall measurement?

Apr 12, 2011 | 02:59 PM

Benja

Evolved Member

Joined: Sep 2006

Posts: 800

Likes: 0

From: Newcastle, Australia.

Is it pulling clean?

Apr 12, 2011 | 07:35 PM

JohnBradley

Evolved Member

iTrader: (30)

Joined: Jan 2004

Posts: 11,406

Likes: 78

From: Northwest

if its a true 12.0 its not abnormal to still see smoke. If its NOT a true 12.0 then thats pretty obvious as to why.

Apr 12, 2011 | 08:27 PM

Murf

Evolved Member

iTrader: (2)

Joined: Jan 2007

Posts: 851

Likes: 1

From: Reno,NV

^^what he said you will still have carbon build up at any AFR. Hit the gas and that carbon build up is pushed out.

Apr 13, 2011 | 06:45 AM

aronmatic

Thread Starter

Newbie

iTrader: (2)

Joined: Nov 2009

Posts: 39

Likes: 0

From: budapest

Quote:

Originally Posted by JohnBradley

if its a true 12.0 its not abnormal to still see smoke. If its NOT a true 12.0 then thats pretty obvious as to why.

i have aem uego in my car. i installed an innovate lc1 with display. they are shows the same. i think this 12.0 is true. i tryed lean it to 12.5 today. its looks better, but it has some smoke still.

Trending Topics

Dumb to Port Cylinder Head on 400 CHP?

6

295
BR lower intercooler pipe set

2

250
Evo help with clutch please!

3

657
Evo 9 gt-a wagon rom issue

1

152
my project

3

502

Apr 13, 2011 | 08:22 AM

raasfaas

Evolved Member

iTrader: (30)

Joined: Oct 2006

Posts: 780

Likes: 0

From: Fl/Jam

Quote:

Originally Posted by aronmatic

i tryed lean it to 12.5 today. its looks better, but it has some smoke still.

What fuel are you on?

Apr 13, 2011 | 08:30 AM

escodotcarter

Evolved Member

iTrader: (16)

Joined: Jun 2003

Posts: 911

Likes: 2

From: NY

Quote:

Originally Posted by raasfaas

What fuel are you on?

I hope he says e85, or some kind of race gas

Apr 13, 2011 | 08:50 AM

#10

Toxin

Evolved Member

iTrader: (2)

Joined: Jan 2008

Posts: 1,595

Likes: 2

From: Way ahead...

Exhaust leak showing you leaner AFRs than they actually are?

Apr 13, 2011 | 09:32 AM

#11

EriCS

Evolved Member

iTrader: (9)

Joined: Oct 2007

Posts: 548

Likes: 2

From: NY

Obviously this means your running rich... correct me if I am wrong?

Apr 13, 2011 | 10:42 AM

#12

aronmatic

Thread Starter

Newbie

iTrader: (2)

Joined: Nov 2009

Posts: 39

Likes: 0

From: budapest

i use 100 ron octane fuel. that is equal usa 95 gas.

maybe i have a minor exhaust leak before the o2 sensors, but its very small.

i mapped the car back to 11.7 afr. runs fine and clean, only bad is the black smoke.