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Thread: FI newbie! Any pointers?

  1. #1
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    FI newbie! Any pointers?

    Hey guys! Ive been tuning a few N/A gm's for a while with the occasional heads/cam setup. Ive done 50 vehicles so far with all positive results. Im ordering a tvs 1900 for my 2011 5.3 sierra. I have a base magnuson tune stored on my pc. But where can I go from there engine wise? I know about the trans tune but since im new to FI, im a little worried that im not familiar with principles related to FI engine tuning.

  2. #2
    Advanced Tuner HartRod's Avatar
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    Are you willing to share the Maggie tune? I'm working on a 6.2/TVS1900 with 80lb SD injectors. Like you, I am new too. Thanks in advance.

    Rob
    69 Suburban Bagged & Blown: http://67-72chevytrucks.com/vboard/s...d.php?t=200387
    68 Farm Truck build thread-LS3/6L80/TVS1900: http://67-72chevytrucks.com/vboard/s...d.php?t=358692

  3. #3
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    Idk how much good it'll do you since its for a 5.3 with the maggie injectors, but ill post it after work tonight

  4. #4
    Advanced Tuner HartRod's Avatar
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    Quote Originally Posted by SilverBullet6.0 View Post
    Idk how much good it'll do you since its for a 5.3 with the maggie injectors, but ill post it after work tonight
    I just thought it would be something good to look through while I'm trying to figure this out, lol. Thanks.
    69 Suburban Bagged & Blown: http://67-72chevytrucks.com/vboard/s...d.php?t=200387
    68 Farm Truck build thread-LS3/6L80/TVS1900: http://67-72chevytrucks.com/vboard/s...d.php?t=358692

  5. #5
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    Here is the tune that came with the supplied sct tuner
    Attached Files Attached Files

  6. #6
    Advanced Tuner HartRod's Avatar
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    Thanks!
    69 Suburban Bagged & Blown: http://67-72chevytrucks.com/vboard/s...d.php?t=200387
    68 Farm Truck build thread-LS3/6L80/TVS1900: http://67-72chevytrucks.com/vboard/s...d.php?t=358692

  7. #7
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    Here is a log and the tune file of my truck right now. Im using the maggie tune out of the 2010 tahoe and have made some slight changes. I havent touched the fueling yet since I havent had time to play with the wideband. I play on nailing down the fueling this week. But I have noticed that the truck is staying in PE even at cruise and killing my mileage. I assume PE is maggie's way of richening the vehicle up with as little work as possible? Can you guys take a look at my tune and log and maybe point me in the right direction on where to go with this? Id sure appreciate it!
    Attached Files Attached Files

  8. #8
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    Anybody? Im really looking to free up some mpg's as my new job gives me about a 40min drive one way and i realt dont like it being in PE on the highway. Im mainly looking for advice on PE enable points and and special considerations or steps to take in nailing down the ve and maf differing from a NA vehicle.

  9. #9
    Senior Tuner SultanHassanMasTuning's Avatar
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    I just downloaded your tune, there is alot you need to fix.
    Follow @MASTUNING visit www.mastuned.com
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  10. #10
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    Thats what I figured. Magnuson's method seems like a band aid to me.