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Thread: 5.3 worked to a 6.2 supercharged lsa

  1. #1
    Potential Tuner
    Join Date
    Oct 2020
    Posts
    4

    5.3 worked to a 6.2 supercharged lsa

    I have a 05 silverado worked to a 6.2 supercharged lsa I am having problems with it running rich throwing codes po220 po175 po172 an when I get a about 20 mph it starts spitting a sputtering when given throttle below i have put everything done to motor plus new lsa injectors an new plugs any help would be appreciated
    5.3
    Melling hi volume oil pump 10296
    Melling pickup tube
    C5r timing chain
    3 bolt 4x timing gear
    Fresh 317 casting heads
    VR .660 dual spring kit
    Lunati valve seals
    Ls7 lifters
    MLS 5.3 Head gaskets
    VR 5/16 7.400 hardend pushrods
    ARP cam bolts
    ARP head bolts
    Trunion upgrade for stock rockers
    VR custom cam 227/223 .614/.610 115+4 8660 billet core
    Ngk br7ef plugs
    Stock lsa injectors
    Stock coils packs
    Reinforced brick
    2.50 upper pulley
    Okw adapter plates
    LSS front bracket kit
    Sanden 508 compressor
    Walbro 450 In tank pump
    Magnafuel fpr return style
    2 bar map
    Ls3 card style maf
    Zl1 iat sensor
    2800 tci stall
    ARP bolts

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    Going to need the tune file and logs.

    Hopefully you have a wideband on this thing.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Potential Tuner
    Join Date
    Oct 2020
    Posts
    4
    I'm looking for a base tune bc I don't know what they used to tune it or who tuned it