PCM Diagnostics & Tuning HP Tuners | Holley | Diablo
Sponsored by:
Sponsored by:

anyway to cut down on exhaust fumes?

Thread Tools
 
Search this Thread
 
Old 10-17-2005, 03:34 PM
  #1  
Launching!
Thread Starter
iTrader: (6)
 
5.3litre's Avatar
 
Join Date: Mar 2005
Posts: 227
Likes: 0
Received 0 Likes on 0 Posts
Default anyway to cut down on exhaust fumes?

ok my car is a 02 ws6 and i have a 233/239 cam in it with no cats, and the exhaust smell at idle is almost unbarable..is there anyway to cut them down with hp tuners? thanks!
Old 10-17-2005, 03:38 PM
  #2  
TECH Junkie
iTrader: (7)
 
Phoenix 5.7's Avatar
 
Join Date: Aug 2004
Location: Prairie de Femme, LA
Posts: 3,809
Likes: 0
Received 0 Likes on 0 Posts
Default

you have no cats, thats how it is. its possible your truck/car is running too rich and needs a tune, but that won't cure it.
Old 10-17-2005, 04:35 PM
  #3  
LS1 Tech Administrator
iTrader: (14)
 
Patrick G's Avatar
 
Join Date: Nov 2001
Location: Victoria, TX
Posts: 8,244
Likes: 0
Received 31 Likes on 27 Posts

Default

Once you get your VE tables nailed, you'll need to adjust your Open loop fueling tables. That will help when warming up.
__________________

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
Old 10-17-2005, 07:17 PM
  #4  
TECH Senior Member
iTrader: (7)
 
Ragtop 99's Avatar
 
Join Date: Nov 2001
Location: Bethesda, MD
Posts: 9,491
Likes: 0
Received 1 Like on 1 Post

Default

Some have found that a few degrees extra timing in the base spark tables helps at idle too.
Old 10-17-2005, 08:18 PM
  #5  
TECH Addict
iTrader: (11)
 
Billiumss's Avatar
 
Join Date: Nov 2001
Location: Erie, PA
Posts: 2,975
Received 14 Likes on 10 Posts

Default

Big cam with positive valve overlap, will make it smell, even with a tuned VE table. Add some cats and that should help.




All times are GMT -5. The time now is 04:06 AM.