LS3 - how much timing?
Thread Starter
Launching!
Joined: Dec 2003
Posts: 251
Likes: 2
From: Portland OR
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.
Thanks for any advice.
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; Mar 4, 2009 at 07:31 PM.
TECH Regular
Joined: Dec 2004
Posts: 440
Likes: 0
From: Alpharetta, Ga
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.
