ZL1 eLSD Drag Race Calibration in CCM

[Tapout Tuning]

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."

[TEN 80]

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?

[ShaneB]

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.

[Tapout Tuning]

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 [email protected]. I will gladly pay for your time and expertise.

[mbray01]

Dave steck????

[Sneakyws6]

The changes for the ZL1 drag update have more to do with how the eLsd locks and unlocks than anything else.

[Tapout Tuning]

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.