Results 1 to 7 of 7

Thread: having trouble keeping my car running.

  1. #1
    Tuner in Training jgibbons's Avatar
    Join Date
    Oct 2016
    Location
    colorado springs, CO
    Posts
    25

    Cool having trouble keeping my car running.

    adjusted some timing since this log and it seemed to help. got to drive the car around the block though, so that was sweet!!


    fuel pressure is at 54 psi. E85.
    cam: https://www.summitracing.com/parts/CCA-54-480-11
    ls1 intake manifold.
    5.3 w/ 799 heads
    Twin t4 61 mm turbos
    10 psi springs in wg's
    ebay boost controller and bov.
    TR6060 6 speed tranny.
    stock bottom end.
    it's running a little rich, like 11.1
    Attached Files Attached Files

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,559
    In your other thread you said you were running 94lb injectors, but that tune file is showing injectors around 50lb/hr.

    You need to adjust that is the tune for sure if that is true. Also because this is speed density, set your MAF fail high under engine diag to 0hz because you aren't using the MAF sensor.
    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
    Tuner in Training jgibbons's Avatar
    Join Date
    Oct 2016
    Location
    colorado springs, CO
    Posts
    25
    this tune is almost completely new. after reading a bit, it seems the popular opinion is to leave it at 1hz ?

  4. #4
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,559
    0hz works fine on the GEN 3 computers, it seems that 2hz and 1hz work better on gen 4 computers.

    Though it doesn't really matter, the number is so low that it'll trip the error and go straight to speed density. I say zero because it's just what I always use.
    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.

  5. #5
    Tuner in Training jgibbons's Avatar
    Join Date
    Oct 2016
    Location
    colorado springs, CO
    Posts
    25
    alright, adjusted. still nothing.

  6. #6
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,559
    Did you adjust the fuel injector info?

    A wideband with these logs is pretty much a must too, adjust the stoich for the fuel you are using too.
    Last edited by 5FDP; 10-21-2016 at 06:01 PM.
    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.

  7. #7
    Tuner in Training jgibbons's Avatar
    Join Date
    Oct 2016
    Location
    colorado springs, CO
    Posts
    25
    so i was a little confused about that too. evryone is saying to tune with the same afr as gas. and that it evens out.. im getting a 12.0-10.5 afr with my wideband set to gas.