Maybe I have missed something along the way but is there anything out there that fully explains the operation and advantages gained with the C8 E-LSD?

 

There is a very good, detailed description of E-LSD operation in the C-7 Shop Manual. Helm has not yet released a C-8 shop manual to consumers. So, in an abbreviated explanation, from the C-7 explaination...... a "standard' Limited Slip Diff locks up both axles when power is applied, regardless or the steering angle of the front wheels. To encourage the car to turn, you need to reduce power so the differential will 'open up' and allow the left and right rear wheels turn at different rates. If the axels stay 'locked', the car will resist turning. Locking and unlocking on a standard, limited slip diff is purely "mechanical' with no knowledge of front wheel angle. An Electronic differential can receive electronic data (steering angle, braking force, throttle angle, etc) and make decisions on how much locking force to apply. So, an E-LSD equipped car can stay on the throttle during turn in, and get on the power earlier exiting a turn allowing the front steering angle to guide the car through the curve, rather than a locked diff trying to push the car straight. Bottom line IT WORKES REAL GOOD!

Al Engel

 

Thanks so much. It looks like it operates very similarly to a F1 diff, without the cockpit adjustable gain control. F1 doesn’t allow for computer aided performance control so, I guess ours is better? This is what I was expecting to hear. I had a disagreement with a friend because he thought it would make the car accelerate faster in a straight line. Doesn’t look like it. Thanks again, Gary

 

https://www.corvetteforum.com/forums...-thread-3.html

While this is specific to C7, look up post #58. Jason Kolk has a nice write-up on eLSD functionality and benefits.

 

Correct..... Straight line acceleration, really no meaningful difference between the E-diff and a Mechanical ("Positraction") limited slip diff. The advantage to the E-diff is when the road gets twisty.

Al Engel

 

Is it correct to say it is NOT torque vectoring?

 

While I do not recall ever seeing the term "torque vectoring" used in any GM published description of their E-LSD operation, I would say 'yes', to your question.... the operation of the E-dif 'encourages' turn in and therefore is providing torque vectoring (in my opinion).
Al Engel

 

Torque vectoring means it applies more torque to the outside wheel. That requires either a torque vectoring differential with specialized mechanicals (very few cars have this), or the use of brakes to the inside wheel. The E-LSD does not do either, so it is not torque vectoring.

 

Here is a video on the C7 ELSD which will help in understanding the Tech of the C8 ELSD

 

Torque vectoring diffs are more common to 4WD vehicles.