Camaro ZL1 Electronic Limited Slip Differential Drag Calibration - Page 10

6spdhyperblue · 09-01-2019, 05:24 PM

Quote:

Originally Posted by Mark R

I got the diff recalibration and can't really tell any difference, but im not a drag racer or track rat. The car sometimes hunts left and right on WOT acceleration, but not by much.

But doing launches on the street in Sport mode, it shits and gits, and leaves two nice black streaks behind.

Does it only work in that mode?

Mark R · 09-01-2019, 05:35 PM

Quote:

Originally Posted by 6spdhyperblue

Does it only work in that mode?

I dont know. I cant really tell anything happened. Maybe the diff clutches will last longer, but i dont know.

*mlee* · 09-01-2019, 07:13 PM

Quote:

Originally Posted by Mark R

I got the diff recalibration and can't really tell any difference, but im not a drag racer or track rat. The car sometimes hunts left and right on WOT acceleration, but not by much.

But doing launches on the street in Sport mode, it shits and gits, and leaves two nice black streaks behind.

When you say hunts left and right on WOT do you mean before the recal?

My initial thoughts on this whole thing is the issue you describe was driving some of this.

19Nasty1le · 09-01-2019, 07:33 PM

Do the 2019 ZL1 / ZL1 1LE come with this then or do they still need flashed?

Mark R · 09-01-2019, 09:00 PM

Quote:

Originally Posted by mlee

When you say hunts left and right on WOT do you mean before the recal?

My initial thoughts on this whole thing is the issue you describe was driving some of this.

It still hunts a bit after the flash. It did not hunt at the drag strip after the flash. I'm not going to stress about it. When it hunts it is very minor. It could be even due to uneven pavement because it does not do it all the time.

Checkmate1 · 09-03-2019, 07:58 AM

Considering I am a road course guy and also take the car on back roads actively...is this drag calibration worth it for me?

I am guessing not but let me know.

Aliveguy5 · 09-03-2019, 10:48 AM

Quote:

Originally Posted by Checkmate1

Considering I am a road course guy and also take the car on back roads actively...is this drag calibration worth it for me?

I am guess not but let me know.

I'm interested in this answers as well.

BMWM.D. · 09-03-2019, 11:31 AM

I’m still really disappointed in how they implemented this. This was a great opportunity, and it’s half assed at best. I really don’t like that there’s no tangible evidence that the flash has even been added — or whether it’s active. I was ready to do this when they first released it, but it’s not at all what I was hoping.

A drag mode in the drive selector menu that would activate this diff calibration AND allow line lock use would have been awesome.

*radz28* · 09-03-2019, 11:37 AM

I wonder if the '20s come with this calibration as standard...

Alain · 09-03-2019, 03:57 PM

Quote:

Originally Posted by Mark R

I got the diff recalibration and can't really tell any difference, but im not a drag racer or track rat. The car sometimes hunts left and right on WOT acceleration, but not by much.

But doing launches on the street in Sport mode, it shits and gits, and leaves two nice black streaks behind.

My ZLE does that hunt to the left and right as well and it comes with the solid bushings so I don’t think switching to solid bushing is the problem.

I think that side to side feel in the rear of these cars is the eLSD clutches slipping.

It’s scary as hell, happened to me this morning !!

6spdhyperblue · 09-03-2019, 04:28 PM

I mean in the scheme of thing $350 would be worth giving a shot if it is that eminent. And yes I did enjoy spending your money rather than mine but I don’t have a Z to play with at the moment...soon

Mark R · 09-03-2019, 04:33 PM

Quote:

Originally Posted by Alain

My ZLE does that hunt to the left and right as well and it comes with the solid bushings so I don’t think switching to solid bushing is the problem.

I think that side to side feel in the rear of these cars is the eLSD clutches slipping.

It’s scary as hell, happened to me this morning !!

Yes, it's a little unnerving. I have the BMR lockout kit, and the beefy control arms, so it's something else. Some have stated that it is alignment, differential tire pressures, etc, but I also think there might be something with the diff, even though I have had the upgrade.

TRZ06 · 09-03-2019, 04:40 PM

Quote:

Originally Posted by Mark R

Yes, it's a little unnerving. I have the BMR lockout kit, and the beefy control arms, so it's something else. Some have stated that it is alignment, differential tire pressures, etc, but I also think there might be something with the diff, even though I have had the upgrade.

Agree, this is not a solid bushing issue.

I added the ZL1 1LE solid bushings to my SS 1LE and there is no hunting on my car. The only thing it did was tighten and make the rear-end more stable and planted and eliminated the side to side (yaw) movements of the rear in quick transition maneuvers.

I would look at the ELSD and maybe the rear diff. fluid.

Mark R · 09-03-2019, 04:56 PM

Quote:

Originally Posted by TRZ06

Agree, this is not a solid bushing issue.

I added the ZL1 1LE solid bushings to my SS 1LE and there is no hunting on my car. The only thing it did was tighten and make the rear-end more stable and planted and eliminated the side to side (yaw) movements of the rear in quick transition maneuvers.

I would look at the ELSD and maybe the rear diff. fluid.

Diff fluid has been changed 3 times in 7000 miles.

09-01-2019, 07:33 PM	#130
19Nasty1le Craig Drives: 2019 ZL1 1LE Join Date: Jan 2019 Location: Peterborough, ON Canada Posts: 443	Do the 2019 ZL1 / ZL1 1LE come with this then or do they still need flashed? __________________

09-03-2019, 07:58 AM	#132
Checkmate1 Drives: Garnet Red / ZL1 1LE Join Date: Apr 2016 Location: USA Posts: 502	Considering I am a road course guy and also take the car on back roads actively...is this drag calibration worth it for me? I am guessing not but let me know. __________________ #SAVETHEMANUALS Last edited by Checkmate1; 09-03-2019 at 11:02 AM.

09-03-2019, 11:37 AM	#135
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,855 View My Garage	I wonder if the '20s come with this calibration as standard... __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

09-03-2019, 11:31 AM	#134
BMWM.D. Drives: ZL1/335i Join Date: Apr 2014 Location: Santa Barbara Posts: 870	I’m still really disappointed in how they implemented this. This was a great opportunity, and it’s half assed at best. I really don’t like that there’s no tangible evidence that the flash has even been added — or whether it’s active. I was ready to do this when they first released it, but it’s not at all what I was hoping. A drag mode in the drive selector menu that would activate this diff calibration AND allow line lock use would have been awesome.

09-03-2019, 04:28 PM	#137
6spdhyperblue Drives: 2SS 1LE Join Date: Aug 2013 Location: US Posts: 3,794	I mean in the scheme of thing $350 would be worth giving a shot if it is that eminent. And yes I did enjoy spending your money rather than mine but I don’t have a Z to play with at the moment...soon

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