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Old 10-06-2012, 05:46 PM   #1
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Default 2005 5.3 Avalanche Tune

Guys,
I am intersted in getting a little more power and fuel econ out of my avalanche. I have HP tuners and I am ok with tuning. My questions are:
What ar ethe bad areas on the 5.3 truck tunes that need work? MAF scaling?
Timing? PE mode?
I know every vehicle is different but I am sure there are known areas in the stock tune that can be improved.
My only mod is a K&N cold air kit.
The truck is obviously a daily driver and is used to pull our boat so I cant get to aggressive. with timing tables and TM.
Does anyone have any advice? Possibly a tune they are willing to share?
Thanks
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Old 10-07-2012, 11:10 AM   #2
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First thing I would do is get rid of the K&N Hot Air Kit and replace it with a Volant with the scoop.
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Old 10-07-2012, 12:02 PM   #3
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Take a look in the HPTuners tune repository. Work the VE and MAF tables to get your fuel trims to +-5, play with timing a bit as its very low stock just dont go crazy if you plan to tow. You can play with PE enable modifiers so that it will hit PE a bit sooner, stock thresholds are pretty high so you can bring PE in a bit sooner. Depends how crazy you want to get.
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04 Sierra Denali AWD
TVS2300@12psi on top of 8 Pistons, Leftcoast32 8 Rib setup, Precision Built 4L80E, PI 2800, Tuned by Myself
11.9 @ 112.7(Uncorrected) 5900 Lb raceweight.
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Old 10-08-2012, 05:19 PM   #4
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Quote:
Originally Posted by 03sierraslt View Post
Take a look in the HPTuners tune repository. Work the VE and MAF tables to get your fuel trims to +-5, play with timing a bit as its very low stock just dont go crazy if you plan to tow. You can play with PE enable modifiers so that it will hit PE a bit sooner, stock thresholds are pretty high so you can bring PE in a bit sooner. Depends how crazy you want to get.
Thanks for the info. I didn't find much on the repository. What about tranny settings? Remove some tm and speed up the shift times? Anything else?
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Old 10-08-2012, 05:19 PM
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