200 miles on new exhaust, smoke? - LS1TECH

Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV External Engine
Sign in using an external account
Register Forgot Password?
Search


Generation IV External Engine
LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories

200 miles on new exhaust, smoke?

Reply
 
Thread Tools Search this Thread
Old 01-27-2010, 09:15 PM   #1
TECH Enthusiast
 
Trader Rating: 6
Join Date: Aug 2008
Location: greenvile, sc
Posts: 588
Default 200 miles on new exhaust, smoke?

just put longtubes and ory on the car and drove it like that for a while, bought powersticks from classic chambered, one for the mid pipe and two for the back, similar to gmmg... when i put the mufflers on i put new denso oxygen sensors in.. only codes are slow 02s and thats only when im at a redlight...

it didnt smoke at all before the mufflers, now its a very strong smell, burns my eyes when i smell it, i realize there is alot of gas in my exhaust because of my large cam, but is this normal? should i be worried that ive broken something? car was dyno tuned at vengence with stock manifolds and crappy exhaust, now i have a free flowing exhaust but it still runs pretty good so i havent retuned yet...
__________________
98 Trans Am
ls3, g6x3!
t/a98 is offline   Reply With Quote
Old 01-27-2010, 09:47 PM   #2
I write checks with my mouth that my ass can't cash
 
Trader Rating: 7
Join Date: Oct 2009
Posts: 948
Default

did you go from cats to no cats ? maybe that has something to do with it ?....if it got tuned with choked exhaust and now it has freeflowing maybe your tune is off...what color is the smoke ?
00blacka4 is offline   Reply With Quote
Old 01-28-2010, 12:21 AM   #3
TECH Enthusiast
 
uphigh07's Avatar
 
Trader Rating: 48
Join Date: Feb 2008
Location: Garden City Kansas
Posts: 573
Default

is the smoke white or black?
__________________
2002 Artic White 35th with a few mods: KOOKS, LPP, SLP, TSP, Racetronix, QA1's, Eibach, Spohn, MGW, AEM, Tick, MWC 9", Yukon, Baer, Strange, NX, MSD, SMJ, Weld Rts, Hoosier, DynoTune, EFI Live, VFN, and more
uphigh07 is offline   Reply With Quote
Old 01-28-2010, 08:43 AM   #4
TECH Enthusiast
 
Trader Rating: 6
Join Date: Aug 2008
Location: greenvile, sc
Posts: 588
Default

white but it might be blue, ive noticed it but passed it off, last night i got out while the car was running, but it was dark, oh and it seems to only be coming from the passenger side, which is weird wouldnt it come from both sides since both banks share a single i-pipe?

(my passenger side pipe uses about 3.5 more feet more tubing than drivers side, because of how its ran, if it matters)
__________________
98 Trans Am
ls3, g6x3!
t/a98 is offline   Reply With Quote
Old 01-28-2010, 08:56 AM   #5
TECH Resident
 
Trader Rating: 1
Join Date: Mar 2009
Location: Knoxville, TN
Posts: 801
Send a message via AIM to 01 ss vert
Default

I've heard of some LTs somehow burning excess oil, but noone has a good explination as to why this occurs. The two seem unrelated, yet it's happened before to others.
__________________


2001 SS Convertible - M6 - White - Black Top (1 of 42)
Comp | Hooker | GMMG | ASP | HSW | Koni | BMR | C6 Brakes | Blaine Fabrication | Fast Toys | Tick | Hawk | UMI | Wolfe | Racetronix | Hurst | ATE | BrakeMotive | Strano | PowerMaster | TA Performance | Edelbrock | Minus that, it's all OEM.

Mustang Dyno 361RWTQ/359HP | 100 Shot, 515TQ/441HP (slipping clutch)
01 ss vert is offline   Reply With Quote
Old 01-28-2010, 09:19 AM   #6
On The Tree
 
thirdgengta350's Avatar
 
Trader Rating: 4
Join Date: Jan 2009
Location: cincinnati ohio
Posts: 117
Send a message via AIM to thirdgengta350
Default

if it kinda has a blue color to it i'd suspect valve stem seals. opening up your exhaust the way you have will make leaky valve stem seals more apparent. where as the previous exhaust would have made it much less noticeable. I also agree with the tune thoery. now that you have things flowing better you might be running a bit too rich.
thirdgengta350 is offline   Reply With Quote
Old 01-28-2010, 09:53 AM   #7
TECH Enthusiast
 
Trader Rating: 6
Join Date: Aug 2008
Location: greenvile, sc
Posts: 588
Default

hope its not my valve seals, whole motor has like 4000 miles with roller rockers, plus im not using oil, atleast not enough for me to notice, and its not blue at startup, which would be my biggest sign for that problem im sure...
__________________
98 Trans Am
ls3, g6x3!
t/a98 is offline   Reply With Quote
Old 01-28-2010, 03:01 PM   #8
Teching In
 
Trader Rating: 0
Join Date: Dec 2009
Location: Chicago
Posts: 14
Default

I'll definitely agree with the oil issue..
andygil90 is offline   Reply With Quote
Old 01-28-2010, 03:01 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
arctic, blue, burns, car, cat, exhaust, eyes, g6x3, ls1tech, mile, motor, rich, smells, smoke, smokes


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 10:34 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details