Results 1 to 14 of 14

Thread: mild cam idle surge and basic settings - tune and log attached

  1. #1
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303

    Thumbs up mild cam idle surge and basic settings - tune and log attached

    Please help me with a few pointers and observations

    restored from death 2012 Chevy Caprice PPV

    105k miles

    muffler delete and intake cone in stock housing

    this will be my daily driver starting NOW... lol

    I have followed many threads and created an alternative tune that starts and idles well but surges violently in gear. So I'm not posting that tune at this time unless requested

    Here is the current tune and idling around the block for the first time :

    bIG hAULERn.hpt

    first cruise.hpl
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  2. #2
    Tuner in Training
    Join Date
    May 2020
    Posts
    43
    The best way to eliminate the surge is to richen up the mixture just a little and apply an unlocked setup of the TC.

  3. #3
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303
    Quote Originally Posted by Gustavo View Post
    The best way to eliminate the surge is to richen up the mixture just a little and apply an unlocked setup of the TC.
    Thank you for the reply. When you say "and apply an unlocked setup of the TC" would you mind please elaborating a little". I'm experienced browsing the tuning software but want to be 100% sure what you are saying.

    I have fixed / improved the intake / intake temp setup on the car an reset fuel trims, little better but still needs massive tuning. The first step on the throttle burbles and hesitases then takes off pretty good. Untuned cam...
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  4. #4
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    It's not making great vacuum at idle. Does it have an aftermarket cam?

  5. #5
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303
    Quote Originally Posted by kevin87turbot View Post
    It's not making great vacuum at idle. Does it have an aftermarket cam?
    Yes.

    LSXceleration
    Non DOD Cam:
    #2054301 3-Bolt Stage 2.1 (218/227 .523/.523 HR112) +$299

    Got some chop to it at idle - but also please note the log was in the early part of just getting it to run and there may or may not have been a vacuum line disconnected. Also the exhaust is stock and possibly partially restricted due to the 517 cats

    I will upload a better updated idle log soon
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  6. #6
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    Oh, that makes more sense. I use a lot of those cams. It's a good street cam for a daily.
    Go back to your original stock tune file and make these changes.

    Here's a quick synopsis of the steps that will get it running.

    1. Go to Engine>Airflow>Dynamic tab and lower the High rpm disable/re-enable to 400/300 respectively.
    2. Go to Engine>Idle>RPM tables and Add 200 rpm to the four idle rpm tables.
    3. Go to Engine>Idle>Airflow tables and add 4.0 gms/sec to the Airflow Final Min table
    4. Go to Engine>Idle>Airflow and increase the startup airflow by 35%.
    5. Go to Engine Diag>Airflow tab and change Min ECT for P0101 to 256, and change Airflow Correlation RPM from 800 to 8000.
    6. Go to Engine Diag>Misfire tab and change Min misfire detection enable to 2500 rpm.

  7. #7
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303
    Quote Originally Posted by kevin87turbot View Post
    Oh, that makes more sense. I use a lot of those cams. It's a good street cam for a daily.
    Go back to your original stock tune file and make these changes.

    Here's a quick synopsis of the steps that will get it running.

    1. Go to Engine>Airflow>Dynamic tab and lower the High rpm disable/re-enable to 400/300 respectively.
    2. Go to Engine>Idle>RPM tables and Add 200 rpm to the four idle rpm tables.
    3. Go to Engine>Idle>Airflow tables and add 4.0 gms/sec to the Airflow Final Min table
    4. Go to Engine>Idle>Airflow and increase the startup airflow by 35%.
    5. Go to Engine Diag>Airflow tab and change Min ECT for P0101 to 256, and change Airflow Correlation RPM from 800 to 8000.
    6. Go to Engine Diag>Misfire tab and change Min misfire detection enable to 2500 rpm.
    All done and I will upload a new startup, idle, and rev in park log here within hours.

    Thank you, I am forever in debt to all of you that help out with anything that helps dial it in to better driveability for now.
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  8. #8
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303
    Quote Originally Posted by Boost View Post
    All done and I will upload a new startup, idle, and rev in park log here within hours.

    Thank you, I am forever in debt to all of you that help out with anything that helps dial it in to better driveability for now.
    Oh my God what an amazing difference. Throttle response is 100% resolved, revs to 5500 RPM smoothly with a blip off idle and I have 55 PSI oil pressure.

    bIG hAULERn.hpt

    21-07-08 18-05-03.hpl
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  9. #9
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    Awesome! I'm glad it worked out.

  10. #10
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303
    Thank you Kevin
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  11. #11
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303

    UPDATE 7.14 Wednesday new tune and log

    I am still at it. The story on this car, in a nutshell, I have been building my '01 Z28 for 1.5 years and invested $10k but 2 months after getting it running HARDDD my good friend totaled it into a tree on a test drive at 70 mph, and we both got hurt. Insurance gave me all of $7600... which I promptly spent on - no offense - the world's most broken '12 Caprice PPV 9C1 L77 / 6L80E and I am using it as a daily driver... don't ask lol.

    Today's update is that after massive blind and stupid tuning revisions I still have no brakes (unrelated) and now the transmission slips badly because I foolishly reset the TAPS.
    I suppose it could take a few weeks of normal driving to relearn hopefully. The exhaust is still clogged and I will be installing a VCM OTR and a clip-on wideband today. The car needs another trans and engine flush also, the 2.92 diff is finally clean.

    Wish me the best you guys, I really love my sweet Holden Commodore VE (ish) a LOTTT but ***literally*** everything is broken on the car and I'm already broke having invested $3000k in emergency repairs in the last month since I've had it. FLM lol

    On the factory tune it started idled and drove like ass although a) that is to be expected b) it is smooth in a way and trustworthy on the stock settings sort of.
    Then I moved on to an HSV starter file that was so kindly provided to me. That got the car starting and idling wonderfully but the throttle response is an asshat and the transmission is on drugs. Since then I've gotten some more help that furthers significantly improved it and that is where we are. Introducing full-time E85, currently at 45% alcohol. I have wheel speed sensor and tire monitor codes that I'm saving up for so I HOPE that fixes the brake pedal feel. Thanks for everything guys
    Attached Files Attached Files
    Last edited by Boost; 07-14-2021 at 08:28 AM. Reason: attaching today's latest tune but I lost morning log sorry
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  12. #12
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303

    VCM OTR installed - this morning LOG drive to work

    trans is slipping and flaring on part throttle shifts I'm pretty sure it's the bad tune in addition to resetting the TAPS. Hoping for mechanical soundness, fluid smells good and is at a correct level. Fluid temps are low and have no related codes.

    thu mo.hpl
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  13. #13
    Tuner in Training
    Join Date
    May 2020
    Posts
    43
    kindly contact me on insta@Gustavotuning for free live tuning. Plz mention ur name when u send the message.

    I have tuned many of these caprices around town

  14. #14
    Advanced Tuner Boost's Avatar
    Join Date
    Dec 2006
    Location
    Florida, USA
    Posts
    303
    Quote Originally Posted by Gustavo View Post
    kindly contact me on insta@Gustavotuning for free live tuning. Plz mention ur name when u send the message.

    I have tuned many of these caprices around town
    Thank you very much, I will do!
    Last edited by Boost; 07-17-2021 at 04:54 AM. Reason: mistake of emojis on my phone
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado