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Thread: 2011 ctsv boost issue

  1. #1

    2011 ctsv boost issue

    Im on the dyno tuning a 2011 ctsv. Installed lower pully (metco 8.6) and spacer lid. I tuned the car with smaller upper pulley and car made 575 whp. My afrs are 11.3 across the board. When we installed the lower pulley I put it back on the dyno to clean up the tune. I pulled a few degrees of timing out. As we climb in rpm car pulls a few degrees of timing out. then around 4900 it kills the boost. I then pulled 2 degrees out and same issue. not sure if im maxing a torque value out here. AFR stay 11.3 across board. Here is a log and tune file. Im thinking I missed something in the tune. Maybe maxing a torque value out somewhere.

    boostcut2.hptboostcut.hpl

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
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    you have alot of torque management enabled. disable and try again
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  3. #3

    tq removed

    is there enough removed here or is there more to alter. Going down the menu is seems like most are a non issue in the torque management table. Car is a manual transmission also.reducetorque.hpt

  4. #4
    Senior Tuner SultanHassanMasTuning's Avatar
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    you can log torque management type
    Follow @MASTUNING visit www.mastuned.com
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  5. #5
    Went for a street drive didnt get the cut pulled to redline. P0106 map sensor popped up. There must be a threshold im missing.

  6. #6

    still cutting

    How much torque management is still in this car. Im back on the dyno now and it still cuts. I drove this car on the street with no cut. Getting frustrated. Here is a datalog

    boostcut3.hpl

  7. #7
    Tuner in Training
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    maybe check under tm/supercharger/boost disable, map disable kpa

    stock is 192kpa
    2009 CTS-V Sedan
    Lingenfelter 650 kit, ID850, AR 1.875" Headers, SW 3" Exhaust, Hptuners pro

  8. #8
    I have it set to 240 now still same

  9. #9
    Senior Tuner edcmat-l1's Avatar
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    Try this one.

    BTW, you don't have any timing in that thing. I'm assuming it's not scaled, so you should be in the 1.00+ g/sec area of the table (@ WOT), and for your boost, the timing is really low. There's a bunch of power to be picked up there.

    Supercowboy_EH1.hpt

    EFI specialist
    Advanced diagnostics, tuning, emissions
    HPtuners dealer and tech support
    email=[email protected]

  10. #10

    disable

    If we disable in "tip in limiting" torque limit and etc limit, this disables all the tables underneath the disable boxes. So as I have it in the pic both those columns are disabled.

    I pulled timing out because of the knock retard and also to keep it a little safer. I want to ramp it back in. here is a file that it is working one the street. It still pulls timing back. I did try the map you listed on the dyno and I would get a boost cut. seems like most of those tables are disabled that you told me to adjust. I went back to this map and no boost cut but i get alot of knock retard.
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