VLSD/ABLS fun

dant1127

Newbie sports car question

I've had a few instances where I've turned off VDC, intentionally hit it hard, and had the rear end correct itself without the Slip light flashing.

Sometimes I notice a fairly "rough," mechanical noise and feel (usually on wet/loose gravel roads), and a bit of fighting between the wheels; slip-noise-grip one tire, followed by slip-noise-grip on the other, back and forth a couple times depending in how long I keep the gas pedal down. Reminds me of the Wrangler I used to drive with a mechanical LSD, except the Jeep would just go slide-one-way-slip-noise-grip-slide the other (fun, but useless/dangerous on-road.)

Other times it's a pretty smooth and super-fast "one-wheel-spins-oshittorque:-D!! (Last car was an '04 xB, excuse the enthusiasm). Dry roads, almost always. Short bursts.

I would assume the rougher stuff is the ABLS pulsating the brakes, and the smoother stuff is the VLSD? Do VLSD-equipped models even use ABLS? Maybe I'm a little nuts? Professional opinions?