Page 1 of 2 12 LastLast
Results 1 to 20 of 26

Thread: 2007 monte carlo ss tuning help

  1. #1
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27

    2007 monte carlo ss tuning help

    i have a 2007 monte carlo with the ls4 in it. i recently built the engine with the following parts installed jegs fabricated aluminum intake, trick flow 220 heads with 2.055/1.60 valves, full roller rockers shaft mounted, 102 mm throttle body, cold air intake, dod delete plate, and a ls9 camshaft. my question is not sure where to start with the tuning. the car doesnt want to idle very long and this is definately a newb question but what ecm do i have? and which perameters should i begin to change?

  2. #2
    Oh man are you in for a treat. I've only been doing for about a year and don't know squat, but be patient and persistent it'll pay off. It looks like they went from a e40 to a e67 mid 2007. I think you can find that thru hp tuners

  3. #3
    Go to vcm editor/ edit/ under tune details look at controllers tab. Hardware

  4. #4
    Advanced Tuner jsllc's Avatar
    Join Date
    Sep 2015
    Location
    Bozeman, MT
    Posts
    701
    post your tune file. it has the info in it.
    2012 ZL1 - Maggie Heartbeat, Port & Polish Heads, Custom Cam, Custom rotating assembly, steel sleeved LS9, No NOS and No water meth. 16psi
    810rwhp and 820rwtq 91 Octane 6400 rpm
    948rwhp and 951rwtq 105 Octane 6400 rpm
    999rwhp and 997rwtq on 60% Ethanol 6400 rpm

  5. #5
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    thanks im going to start trying to tune it this weekend

  6. #6
    It's just air fuel and spark. Log everything you can. Look at what it's telling you. Do some reading. Google it. Good luck

  7. #7
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    Get a wideband if you don't have one yet.
    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.

  8. #8
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    My wide band is supposed to be here Tuesday

  9. #9
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    I dropped the size of the throttle body to a stock 2009 5.3l truck engine was advised that the 102mm is be too big

  10. #10
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    Last edited by vdvan02; 06-09-2020 at 01:40 PM.

  11. #11
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    idle tune

  12. #12
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    Also should I have a screen in front of the airflow meter my fuel trims go thru the roof when it goes into cl

  13. #13
    add o2 voltage b2s1 (SAE) to channel config so you can see the reading on chart vs time. I think you have to change your front o2 sensors bank 1 and bank 2 cause of what am seeing in chart vs time.

  14. #14
    do u have a wideband?

  15. #15
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    My car only has the 1 upstream sensor being the ls4

  16. #16
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    I have a wideband but wait on an adapter cable to plug it to the laptop

  17. #17
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    Do I put it in the existing o2 location?

  18. #18
    Tuner in Training
    Join Date
    Jul 2019
    Posts
    27
    Do you mind if I pm you?

  19. #19
    Feel free to do so

  20. #20
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    If the stock MAF had a screen in front of the MAF, you should keep that screen.

    Vehicle that have the "card" style MAF sensor do not have screen's.

    Did you keep the stock exhaust manifolds and cat? If not, you want to disable all that stuff and the test (COT, Cat Test and Post o2 Test).

    If there are no vacuum or exhaust leaks you will probably have to add 10-20% to the MAF/VVE to see if the trims come down.

    Also don't be surprised if you run out of injector with the mods. It's quiet possible that you will.
    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.