Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

LS3 - how much timing?

Thread Tools
 
Search this Thread
 
Old 03-04-2009, 05:04 PM
  #1  
Launching!
Thread Starter
 
71CamaroLS1's Avatar
 
Join Date: Dec 2003
Location: Portland OR
Posts: 251
Likes: 0
Received 1 Like on 1 Post

Default LS3 - how much timing?

How much spark advance are folks using on the LS3 for max power? I'm using an aftermarket ECU (BigStuff3) which has no knock sensing for LS motors, and I don't want to keep pushing the timing until I hear audible detonation ... I'm running 24 degrees at WOT right now, but I have no idea what the factory settings are, or what well-tuned cars are using.

Thanks for any advice.
Old 03-04-2009, 05:08 PM
  #2  
TECH Regular
 
1.8t's Avatar
 
Join Date: Dec 2004
Location: Alpharetta, Ga
Posts: 440
Likes: 0
Received 0 Likes on 0 Posts
Default

25deg here.
Old 03-04-2009, 07:26 PM
  #3  
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

Are you running 25* all the way up in higher air mass areas? I get that on my logs but that is after the PE/COT spark advance is added in.

Last edited by Ragtop 99; 03-04-2009 at 07:31 PM.
Old 03-05-2009, 08:55 AM
  #4  
TECH Regular
 
1.8t's Avatar
 
Join Date: Dec 2004
Location: Alpharetta, Ga
Posts: 440
Likes: 0
Received 0 Likes on 0 Posts
Default

COT is disabled and yes, this is max timing in PE high in the MAF curve(near redline, I need to look a log to tell you when the car hits 25deg specifically). This is generally the number most people ask for when asking for spark advance. Of course, I do run more timing before peak tq with peak tq having the least amount in the curve.



Quick Reply: LS3 - how much timing?



All times are GMT -5. The time now is 05:41 AM.