ecoman35

just finished swapping a lq9 into my 72 chevelle. trying to tune with hp tuners but i am new to this. does anyone have a decent base tune that i could download to start with. 2003 lq9 from escalade long tube headers auto with 2800 stahl and 4:10 gears. cam specs 222/226 586/569-114+2. dbc thanks for any help

01ssreda4

iTrader: (96)

Add 20% to the VE table and get going. It'll be close enough to be safe and get you started.

gagliano7

If you go to the Hptuner's repository you could probably find something close to look at and see the diffences.

01ssreda4

iTrader: (96)

cam is probably gonna want a little less fuel at idle, so plan on it being a little rich, and probably a little more at WOT upper rpms, so plan on adding some. So 20 is a good round number between the two.

Haggar

Take a look at this post:

https://www.hptuners.com/forum/showt...de-(w-pictures)

Most of the pics don't work anymore, due to changes to photobucket, but the info is good. I'm starting to tune my LQ4 swapped into a 1971 GMC Jimmy. I've running headers, CNC'd heads, 4" Intake, 3200 Yank, 223/231 .63x/.61x cam, Corvette LS2 Injectors, 4L65e. I've been using the info in that first thread, and have the truck idling pretty well now, and drives pretty well. I need to get my wideband wired in and start on part throttle next.

ecoman35

The pcm is a 411 from psi that i got my harness from. the guy doing the tuning told me it identifies as a v6. is this going to be a issue?

2xLS1

iTrader: (25)

Find a new tuner.

01ssreda4

iTrader: (96)

That setting in the computer has no effect.