Anyone here tune LS motors?
- Thread starter RENODMAX
- Start date
You have a wideband? Have you done the auto VE tuning? I did all the tuning in my turbo gasser a couple years back. Don't remember all of it, but depending on if you're running open (no O2 sensor feedback) vs. closed loop (using long term and short term fuel trims) vs semi-open loop (using short term fuel trims only), you can set it to use an AFR of about 15.5:1 on the lighter load cells.
6.0's will never get the mpg of 4.8's. I played with my Colorado a bit and never saw more than 1-2 mpg change if that.
The main upgrade for a 6L is to turn on "lean cruise". Your 04 should have an OS supported which allows you to turn this function on. The best bet is to do the VE tuning 1st, then dial in the lean cruise. This does require a WB to do. If you don't have a WB, I've done a hack lean cruise tunes on a couple 6L trucks and each one got +1 MPG. Basically, I just barely turned on the lean cruise and it seemed to help. The actual lean cruise tables usually have some pretty lean values in them. I've never felt comfortable using those values on engines that I didn't have some WB data on.
I don't personally tune the file for my LS2, but I could get you in contact with the guy who does!
He's got LS tuning dialed, currently his tuning is powering some of the fastest TrailBlazer SS's (boosted and N/A) silvy's, turbo silvy's and Vettes.
One of the TBSS owners local to me is currently the Fastest AWD All motor record holder in the TBSS community...and running tuning from this man
PM me for details
He's got LS tuning dialed, currently his tuning is powering some of the fastest TrailBlazer SS's (boosted and N/A) silvy's, turbo silvy's and Vettes.
One of the TBSS owners local to me is currently the Fastest AWD All motor record holder in the TBSS community...and running tuning from this man
PM me for details
Any gasser tuner worth a shit is tuning via a wideband, EFI-L and HPT are the "ticket" and I was going to give you dudes contact, as he's typically pretty willing to help people out, not just sell a tune
But it sounds like you already got it figured out, so best of luck
Lol
But it sounds like you already got it figured out, so best of luck
Lol
Once again my enthusiasm trumped my common sense and I forgot who I was dealing with
Good day sir
Good day sir
He tuned my father's Tahoe in person and the tune ended up like shit. Break necking shifts, mileage went down, just a crappy tune all around. Ended up getting a reflash at the dealer..
Just my 2 cents on Blackbear performance.
As far on the 4l60 the biggest difference I saw was removing torque management and a small bump in timing.
