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Thread: New to Tuning need some help

  1. #1
    Potential Tuner
    Join Date
    Jul 2014
    Posts
    4

    New to Tuning need some help

    I have a LS1 5.7 transplanted into a 69 Camaro stock 5.7 with a cam. TH350 with a 2800 stall converter. (planning to change in winter to 4l60) Comp Cam specs are as follows:

    intake Exhaust
    duration at 050 224 228
    lobe lift 3340 3340

    lobe separation 112.0
    gross valve lift 568

    Minor idle problems, I adjusted but surges a bit when put in gear and sometimes will die coming to a stop or putting in gear. I hope someone could look at this tune and give me an idea of what needs to be corrected. Thanks ![ATTACH]45573
    Attached Files Attached Files

  2. #2
    Since you have a TH350, you need to tune the idle for when the car is in-gear, since you have no way of telling the computer that you are in P/N or "In-gear" to change idle characteristics.

  3. #3
    Senior Tuner
    Join Date
    Feb 2009
    Posts
    1,931
    Research Russ K idle airflow config, run it in gear as described, paste the the data into base running airflow.

  4. #4
    Potential Tuner
    Join Date
    Jul 2014
    Posts
    4
    awesome ill try that and give you a follow up

  5. #5
    Potential Tuner
    Join Date
    Jul 2014
    Posts
    4
    ok, raised target idle by 100 across the board, added 2 deg. to spark advance 400-1000 rpm .08-.32 g/sec , multiplied Primary Ve column 400x.60 800x.80 1200x.90.
    Holding nice idle, all else is good. only thing I would like to tweak, when I am slowing down almost to a stop it has a slight surge. If I come to a fast stop no surge. Any ideas? Thanks.

  6. #6
    That will most likely be your throttle follower tables. Do some research on those to see what you need to adjust.