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Old 01-19-2022, 11:51 AM   #1
Smoke-in
 
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1LE e-diff torque management

Like one of many, I have been plagued with a terrible 60 ft time at the strip during launch. My M6 car is great on the track, but my drag strip experience not so good. No matter what I do, the car falls on its face off the line, and then goes.
Has anyone had any success , or know of anyone that has been able to adjust the tables to bi pass this built in torque management feature?? It is terribly frustrating and my best passes have resulted in slipping the clutch heavily.
Any info will be appreciated.
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Old 01-19-2022, 09:06 PM   #2
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Name:  hp wheel hop.JPG
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Seemed to help my V
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Old 01-19-2022, 09:44 PM   #3
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Interesting, I will investigate. Thanks for the insight!
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Old 01-20-2022, 03:28 PM   #4
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tomster, do you recall what it was set to with the factory calibrations? I'm just curious.
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Old 01-20-2022, 06:01 PM   #5
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Stock ZL1 set at 664 and wheel hop is on
Name:  zl1stock.JPG
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Old 01-20-2022, 06:07 PM   #6
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here is a stock SS 1LE

Name:  stock ss1le.JPG
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Old 01-20-2022, 06:21 PM   #7
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Quote:
Originally Posted by tomster View Post
Stock ZL1 set at 664 and wheel hop is on
Attachment 1089791
Thanks for the info for both cars!
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Old 01-20-2022, 07:39 PM   #8
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Quote:
Originally Posted by Smoke-in View Post
Like one of many, I have been plagued with a terrible 60 ft time at the strip during launch. My M6 car is great on the track, but my drag strip experience not so good. No matter what I do, the car falls on its face off the line, and then goes.
Has anyone had any success , or know of anyone that has been able to adjust the tables to bi pass this built in torque management feature?? It is terribly frustrating and my best passes have resulted in slipping the clutch heavily.
Any info will be appreciated.
Have you made this CCM update? https://gm-techlink.com/?p=11978

It should help.
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Old 01-22-2022, 10:07 AM   #9
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Tomster, yes, thank you for the screen shots! It is good to know what stock is on both cars.
I will be working on a re-tune soon. If any one else out there has words of wisdom, please chime in. I do know HP is starting to look at this, but I also hear it is not on the top of their to do list.
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Old 02-01-2022, 07:35 AM   #10
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Quote:
Originally Posted by Smoke-in View Post
Tomster, yes, thank you for the screen shots! It is good to know what stock is on both cars.
I will be working on a re-tune soon. If any one else out there has words of wisdom, please chime in. I do know HP is starting to look at this, but I also hear it is not on the top of their to do list.
Keep us posted on what you find out. Once the snow melts I plan on trying a few things and data logging. Will share any positive results.
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Old 02-04-2022, 04:49 AM   #11
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question:

if powerhop is disabled but the other tq values are stock, will the car still cut power?
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Old 02-04-2022, 07:55 AM   #12
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Quote:
Originally Posted by s346k View Post
question:

if powerhop is disabled but the other tq values are stock, will the car still cut power?
Power hop is detecting rythmic pattern in the rear wheel speeds. It's a good place to start, and is the cause of many cars to fall on their face right after launching.
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Old 02-16-2022, 01:09 PM   #13
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So that bulletin says ZL1. Is there one from GM on the SS 1LE, or is that something done in HP Tuners?
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