04-10-2018, 07:18 PM | #85 | |
I used to be Dragoneye...
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04-10-2018, 07:23 PM | #86 |
Drives: 2018 ZL1 1LE - HBM, PDR Join Date: Jun 2017
Location: Rescue, CA
Posts: 324
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I too have been curious about how the eLSD actually works and how it compares to true torque vectoring differentials. I ran across what appears to be the patent application on the GM eLSD. Interesting read for inquiring minds.
https://drive.google.com/file/d/1pVh...w?usp=drivesdk I am following this thread closely to pick up new knowledge directly on this steer problem and indirectly on the eLSD. Good luck Ted. At least GM and dealer seems to be actively engaged to remedy.
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04-11-2018, 08:00 AM | #87 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,225
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Quote:
Ted.
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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04-11-2018, 09:06 AM | #88 | |
I used to be Dragoneye...
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Once it warms up around here, I'm going to have to try and test this out on my car...haven't noticed it before...so I don't know if it's there. |
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04-11-2018, 09:14 AM | #89 |
Drives: 18 ZL1 A10 Join Date: Nov 2008
Location: South East, FL
Posts: 3,024
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Car was less than 24hrs old when the problem appeared.
High end car, I'm surprised that GM wont take the car back and give you another one. I'm sure they would love to do forensics on the car.
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2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6
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04-11-2018, 09:24 AM | #90 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,225
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Quote:
Ted.
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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04-11-2018, 09:30 AM | #91 |
I used to be Dragoneye...
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Not a high volume car, and it doesn't sound like the car as a whole has a problem, just the diff. If this is anything like some of my past experiences, there will be a field engineer involved, shortly....
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04-11-2018, 09:58 AM | #92 |
Drives: 18 ZL1 A10 Join Date: Nov 2008
Location: South East, FL
Posts: 3,024
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Exactly! Not a high volume car. all the more reason to park it and tear it apart to find out what's going on. Hey I know that wont happen, just surprised that's all.
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2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6
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04-11-2018, 01:28 PM | #93 | |
Drives: Grandad's C2 L89 Join Date: May 2017
Location: 20*51.50N 156*29.60W
Posts: 1,711
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Quote:
Thanks for keeping us updated Ted.
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2018 ZL1 1LE sw/PDR
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04-11-2018, 02:31 PM | #94 |
Drives: 2016 Camaro 2SS, 6spd M Join Date: Aug 2016
Location: Lexington, SC
Posts: 326
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Tramlining (Tram-Lining - taken from Wikipedia because I got lazy): "Tramlining is the tendency of a vehicle's wheels to follow the contours in the surface upon which it runs. The term comes from the tendency of a car's wheels to follow the normally recessed rails of street trams, without driver input in the same way that the train does. The same effect is sometimes called Nibbling."
I get some tramlining in the Camaro. I believe it's due to having noticeably wider rear tyres. The 30mm difference between front and rear is a little over an inch, so noticeable. Mentioning torque steer - that's more an issue for FWD cars. My Clio 172 Cup had it a little bit. It could technically happen in AWD and RWD cars, but not to the same extent. Best way I can describe that feeling is when you are accelerating a rear wheel drive car and you let go of the steering wheel, it pulls to the angle of the front wheels as they sit and drives straight from there. If you let go of the wheel in a front wheel drive car under those same conditions, it'll yank the front wheels to the angle of the rear wheels - straight ahead. Similar to coming into a corner too hard and locking the brakes up. Question - when this lane switching happens, does the car actually accelerate, maintain a steady pace, or slow down? Rather than a slip, it sounds more like a lock to me - and I'd expect to see a sudden but slight drop in speed. The left of the car is locking up and that drag on the tyres is tugging the car to the left. The right is still moving freely, as it has no such resistance. I'm assuming you've tried comp mode and completely disabled traction control to see if you have the same issue there? If the rear left brake was locking (or front left brake I guess) then it'd pull like that. Just some thoughts. Good luck! |
04-11-2018, 02:54 PM | #95 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,225
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Quote:
Very light throttle cruise you can let go of the wheel. Hard acceleration it spins the tires and goes straight. Nothing is dragging or locking up car accelerates normally in all conditions. Ted.
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04-11-2018, 07:44 PM | #96 | |
Drives: 2013 Camaro 1LE Join Date: Jul 2012
Location: Verona, WI
Posts: 1,924
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I was thinking about this the other night and was thinking about what you are guessing the problem is (only one wheel getting power). Wouldn’t rear wheel drive vehicles with an open diff (i.e. no form of locking differential) experience this problem all the time since they are always only getting power to one wheel? It just seems to me that if the root cause is all power going to only one wheel then open diff cars/trucks would have the same issue all the time. Am I not fully understanding an open diff? Good luck getting your car issues resolved ASAP. Really sucks to get a new car and have issues like this already.
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04-11-2018, 08:40 PM | #97 | |
Drives: Getaway Special Join Date: Jan 2013
Location: Globe Trotter - CIU
Posts: 398
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Sip:
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04-12-2018, 08:13 AM | #98 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,225
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Quote:
This diff has the ability to apply power to one or the other axle through the ELSD. Ted.
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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