Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Engine stumbles badly upon accelleration

Thread Tools
 
Search this Thread
 
Old 06-29-2003, 05:29 PM
  #1  
Cal
TECH Veteran
Thread Starter
iTrader: (1)
 
Cal's Avatar
 
Join Date: Feb 2003
Location: Northern Utah
Posts: 4,692
Likes: 0
Received 3 Likes on 3 Posts

Default Re: Engine stumbles badly upon accelleration

Your cam is making it run too rich while in open loop mode. Scale your main VE table by 60% to 80% and you should be OK.
Old 06-29-2003, 05:59 PM
  #2  
TECH Apprentice
iTrader: (3)
 
bomax's Avatar
 
Join Date: Apr 2002
Posts: 398
Likes: 0
Received 0 Likes on 0 Posts

Default Re: Engine stumbles badly upon accelleration

Cool I'll give it a try...thanks!
Old 06-29-2003, 07:23 PM
  #3  
TECH Resident
iTrader: (1)
 
BLUEBYU's Avatar
 
Join Date: Dec 2001
Location: Overland Park, KS, USA
Posts: 933
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Engine stumbles badly upon accelleration

Cal does it again... great to have you on this forum! That is good ****...and none of this "tuning in the box" crap!
Old 06-29-2003, 07:26 PM
  #4  
TECH Senior Member
iTrader: (2)
 
gator's 99TA's Avatar
 
Join Date: Nov 2001
Location: Tampa Bay
Posts: 9,971
Likes: 0
Received 2 Likes on 2 Posts

Default Re: Engine stumbles badly upon accelleration

check the O2 sensor off your headers. they might be leaking and showing a fake lean condition making the car run really rich. cams itself wont make it bog that bad normally. good luck.
Old 06-30-2003, 03:07 AM
  #5  
TECH Apprentice
iTrader: (3)
 
bomax's Avatar
 
Join Date: Apr 2002
Posts: 398
Likes: 0
Received 0 Likes on 0 Posts

Default Engine stumbles badly upon accelleration

I have a TR224 with Comp 918 springs and hardened pushrods.

Before the car has fully warmed up, when I hit the gas at lower RPMs (below 2k) unless I totally feather the throttle it bogs and stumbles and sometimes backfires badly. The car feels like it's about to die on me if I don't let out. After driving for 10-15 mins when it fully warms up it drives just fine.

Any ideas? It almost seems to me like a vacuum leak but I can't find any. I am currently taking off the valve covers to see if maybe one of my rockers came loose (they are really loud).




All times are GMT -5. The time now is 10:51 AM.