Results 1 to 6 of 6

Thread: Turbo 5.3 tahoe

  1. #1
    Tuner in Training
    Join Date
    Jul 2021
    Posts
    17

    Turbo 5.3 tahoe

    Needing help with my tune, 5.3 with ss3 cam an 421 heads with duel .660 springs 1;1 fpr at 43.5 with deka 80s 3 bar os 4l60e with circle d 3600 converter 3.73 gears,
    Problems I'm having feels low on power and my Raf is way lower now recently did head gaskets cracks or imperfections on heads, block looked good no vac leaks or exhaust leaks, drives great a\f is within .16 give or take either way to target. tahoe sloppy 06 new new.hpt5 psi.hpl

  2. #2
    Advanced Tuner rabbs88's Avatar
    Join Date
    Jan 2023
    Location
    NY
    Posts
    273
    Your trims are 20%+ rich in your idle and low RPM areas and at very low throttle inputs your commanding as low as .84 and not even close to being in boost? That's way too rich. Do you have a wideband? Also don't copy your high octane table to your low. You have no knock protection with them setup that way

  3. #3
    Senior Tuner Lakegoat's Avatar
    Join Date
    Jul 2012
    Location
    Florida
    Posts
    1,479
    What MAP sensor is that? With Linear and offset 300/10.33
    Power Enrichment ---Eq Gas and Boost is 1.18 across the board. Boosted should be 1.23 to 1.28
    Spark map not setup for 3 bar.
    Your log shows pretty rich, VE table needs some work.
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  4. #4
    Senior Tuner
    Join Date
    Nov 2017
    Posts
    1,541
    Quote Originally Posted by Lakegoat View Post
    What MAP sensor is that? With Linear and offset 300/10.33
    Power Enrichment ---Eq Gas and Boost is 1.18 across the board. Boosted should be 1.23 to 1.28
    Spark map not setup for 3 bar.
    Your log shows pretty rich, VE table needs some work.
    https://forum.hptuners.com/showthrea...381#post762381
    Do people not remember that they have existing threads when they start new ones?

  5. #5
    Tuner in Training
    Join Date
    Jul 2021
    Posts
    17
    Im running https://www.efisource.com/wp/shop/ls...ar-map-sensor/ Map sensor an have adjusted offset to show 101kpa KoEo how do i better my spark map?

  6. #6
    Advanced Tuner
    Join Date
    Jan 2015
    Location
    Arizona
    Posts
    491
    Id quit using this post and go back to your original post with ALL THE INFO given over there...