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Thread: ZL1 eLSD Drag Race Calibration in CCM

  1. #1

    ZL1 eLSD Drag Race Calibration in CCM

    I recently stumbled across the following announcement from GM regarding a new CCM calibration for the ZL1 eLSD. Is there any chance someone could share both an original and the newer ZL1 CCM calibrations with me? Thanks in advance, and happy new year!

    "New Camaro ZL1 eLSD Drag Race Calibration Available

    August 29, 2019

    A new performance calibration is available from Chevrolet Performance for 2017-2019 Camaro ZL1 models that enhance launch capabilities on the drag strip. The calibration has been developed through continuous drag strip development of the Camaro ZL1 to enable enhanced performance right from the starting line.

    The Electronic Limited Slip Differential (eLSD) Drag Race Calibration has been developed to enable more consistent burnout performance for improved drag strip launches. The calibration doubles the differential coupling torque during burnout and drag launch scenarios by increasing the pressure applied to the clutch pack in order to prevent relative slip between the clutch plates. As a result, burnouts warm both tires evenly, which is essential for a straight launch.

    Camaro eLSD Calibration Update

    The eLSD Drag Race Calibration requires reprogramming the Chassis Control Module. Before programming, contact the Techline Customer Support Center (TCSC) for programming requirements and a Vehicle Configuration Index (VCI). The VCI is valid only for the specific VIN provided by the technician.

    To install the calibration, reprogram the Chassis Control Module using the Service Programming System (SPS). Module software and utility files are updated along with the calibration files. Clear any DTCs that set during reprogramming.

    Refer to Chassis Control Module Control Calibration Data File Package Installation ? GM Performance Drag ZL1 Instruction ID: 84612071 (Document ID 5135164 in the Camaro Accessory Installation Manual) for more information.

    The updated calibration is for drag racing purposes on an appropriate track. It is only enabled when traction control and electronic stability control (ESC) are disabled. Drivers can turn off traction control and ESC by pressing and holding the traction control button for five seconds. Driving the vehicle on public roads with traction control and ESC disabled is not recommended.

    Updating the Camaro ZL1 with the eLSD Drag Race Calibration from Chevrolet Performance maintains the vehicle?s warranty."
    1998 Pontiac Grand Prix GTP (first 3800 FWD in the tens), 9.499 @ 145.13 mph
    1998 Pontiac Firebird (first 3800 RWD in the eights), 843 whp, 8.991 @ 152.12 mph, driven by Tim King
    1999 Pontiac Grand Prix GT (first 3800 FWD in the eights), 8.902 @ 154.90 mph, driven by Bob Cook
    2000 Pontiac Bonneville SSEi (first 3800 Bonneville in the twelves, elevens and tens), 10.711 @ 125.71 mph, driven by Ed Morad
    2008 Pontiac G8 (first G8 in the tens), 10.727 @ 129.87 mph
    2018 Cadillac ATS-V, 734 wtq

  2. #2
    Potential Tuner TEN 80's Avatar
    Join Date
    Jan 2020
    Location
    Georgia
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    I have 2019 ZL1 1LE A10. At 500 miles, I had the oil changed and rear diff fluid changed. I also asked them to perform the eLSD Drag Update.

    They stated that they spent an hour on the phone with GM. They stated that they could not do the update on my car due to it being a 1LE with different suspension.

    They still charged me $50 labor for the ?time on the phone?

  3. #3
    Tuner
    Join Date
    Dec 2019
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    DFW, TX
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    Quote Originally Posted by TEN 80 View Post
    I have 2019 ZL1 1LE A10. At 500 miles, I had the oil changed and rear diff fluid changed. I also asked them to perform the eLSD Drag Update.

    They stated that they spent an hour on the phone with GM. They stated that they could not do the update on my car due to it being a 1LE with different suspension.

    They still charged me $50 labor for the ?time on the phone?
    Makes sense because the 1LE has spool valve dampers and not magnetic ones, so there's no electronic control over them, but they shouldn't have charged you anything for the time. Not your fault they can't read the bulletin and know the difference between Camaro trims. I'd call the GM of that dealership and get your money back.

  4. #4
    I now have ZL1 CCM reads from before and after the $350 software update from GM. However, whatever differences there are between these files cannot be seen in VCM Editor. I have worked with HP Tuners Support on this, but they tell me they are not able to identify/define these tables for me. If this is something you can do, please send an email to me at ScottC@TapoutTuning.com. I will gladly pay for your time and expertise.
    1998 Pontiac Grand Prix GTP (first 3800 FWD in the tens), 9.499 @ 145.13 mph
    1998 Pontiac Firebird (first 3800 RWD in the eights), 843 whp, 8.991 @ 152.12 mph, driven by Tim King
    1999 Pontiac Grand Prix GT (first 3800 FWD in the eights), 8.902 @ 154.90 mph, driven by Bob Cook
    2000 Pontiac Bonneville SSEi (first 3800 Bonneville in the twelves, elevens and tens), 10.711 @ 125.71 mph, driven by Ed Morad
    2008 Pontiac G8 (first G8 in the tens), 10.727 @ 129.87 mph
    2018 Cadillac ATS-V, 734 wtq

  5. #5
    Advanced Tuner mbray01's Avatar
    Join Date
    Dec 2013
    Location
    Slidell, La.
    Posts
    870
    Dave steck????
    Michael Bray
    Rusty Knuckle Garage
    Slidell, Louisiana
    20yr Master Tech.
    Advanced Level Specialist
    Custom Car Fabrication, Customization, High Performance.
    GM World Class Technician
    Shop Owner

  6. #6
    Advanced Tuner
    Join Date
    May 2007
    Posts
    483
    The changes for the ZL1 drag update have more to do with how the eLsd locks and unlocks than anything else.

  7. #7
    Quote Originally Posted by Sneakyws6 View Post
    The changes for the ZL1 drag update have more to do with how the eLsd locks and unlocks than anything else.
    Correct, for better burnouts, with less stress on the differential.