E-LSD Info?
Pro
Joined: Dec 1999
Posts: 545
Likes: 286
From: Lords Valley PA
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
Al Engel
Thread Starter
Drifting
Joined: Mar 2006
Posts: 1,869
Likes: 23
From: Oro Valley Arizona
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
Drifting
Joined: Sep 2000
Posts: 1,888
Likes: 230
From: Livingston County, Michigan
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.
While this is specific to C7, look up post #58. Jason Kolk has a nice write-up on eLSD functionality and benefits.
Pro
Joined: Dec 1999
Posts: 545
Likes: 286
From: Lords Valley PA
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
Al Engel
Pro
Joined: Dec 1999
Posts: 545
Likes: 286
From: Lords Valley PA
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
Al Engel
Race Director
Joined: Jun 2001
Posts: 10,084
Likes: 3,056
From: CA
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
Al Engel
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