LS3 recommend AFR
Thread Starter
Teching In
Joined: Nov 2001
Posts: 12
Likes: 0
From: Prairieville, La
LS3 recommend AFR My 2008 G8GT responded well to averaging the AFR to around 13.1:1.
Now we have a 2010 Camaro SS and the ECM is commanding 11.2:1 AFR average at WOT.
Aside from sticking her on a dyno, does anyone know if the LS3 runs better with a lean(er) AFR like my L76 and LS1s I have seen?
Now we have a 2010 Camaro SS and the ECM is commanding 11.2:1 AFR average at WOT.
Aside from sticking her on a dyno, does anyone know if the LS3 runs better with a lean(er) AFR like my L76 and LS1s I have seen?
11 Second Club
Joined: May 2007
Posts: 226
Likes: 1
From: Sydney
All things being equal your ls3 will perform better with 13.0-1 afr's than 11's . I used to run 13.2 on my l76 with ported heads which worked very well. This is with good supporting mods not with stock pipes and intake.
cheers
cheers
Thread Starter
Teching In
Joined: Nov 2001
Posts: 12
Likes: 0
From: Prairieville, La
Good to know.
My G8-GT is bone stock with exception of the intake from Roto-Fab. Averages in the 335 range RWHP. Depending on conditions, as high as 346 RWHP. Stock was a measily 287 RWHP. But I retained all stock exhaust out of fear of cabin drone while in 4-cyl mode. I figure it has it, why not use it for long trips. I tuned the DoD settings at can maintain 4-cyl mode up to 83 MPH and at that speed I nailed a sustained 28.4 MPG on a long trip a few months back.
So we added the Camaro SS/RS 6-speed to replace a 2008 Mustang GT 5-Speed totalled in a head on collision with a drunk and high driver. The Mustang was a blast because it lacked the HP to smoke the tires under throttle in a curve. The SS, will take sometime to learn.
Gonna focus on and around 13s and gonna watch for pings. Thanks!
My G8-GT is bone stock with exception of the intake from Roto-Fab. Averages in the 335 range RWHP. Depending on conditions, as high as 346 RWHP. Stock was a measily 287 RWHP. But I retained all stock exhaust out of fear of cabin drone while in 4-cyl mode. I figure it has it, why not use it for long trips. I tuned the DoD settings at can maintain 4-cyl mode up to 83 MPH and at that speed I nailed a sustained 28.4 MPG on a long trip a few months back.
So we added the Camaro SS/RS 6-speed to replace a 2008 Mustang GT 5-Speed totalled in a head on collision with a drunk and high driver. The Mustang was a blast because it lacked the HP to smoke the tires under throttle in a curve. The SS, will take sometime to learn.
Gonna focus on and around 13s and gonna watch for pings. Thanks!
