Edwardz

I have been looking at the display for eLSD. I thought it would be a percent one rear wheel is rotating compared to the other . However sometimes when going straight down the road it is measuring 15% The percent seems unrelated to turning which would seem to increase slip. The readout appears more related to speed. Anyone know what this is a actually measuring? There is a bar at the bottom that seems a little more instantaneous.

jaden61

It measures the percentage/amount of clutch disengagement. When it reads 0% left and right axles are locked 1 to 1. In a tight corner you will see a higher number for the amount of clutch disengagement.
As explained and/or understood at Corvette Owners School.

Edwardz

That's the way I understand it but when I watch the gauge it doesn't seem to go up going around the corner and sometimes reads higher going straight ahead then when I get into a corner. Maybe it averages it over time?

jaden61

Watch it during a burnout and report back. Again j/k.

VetterFlyer

I just returned from Spring Mountain and I asked what this was for because as an engineer it made no sense to me. They said that they asked a GM engineer so they could explain it to the class. He told them that you should ignore it and it should never have been put into the car. So the technical answer is Ignore.

SBC_and_a_stick

Wow. Good to know. I just thought the refresh rate was unbearably slow but there's probably more to it not right.

johnglenntwo

https://youtu.be/_PoocIsiV2c

The state of the art!

BWFitz

Every once in a while the software geeks sneak one past the Chief Engineer.

6104696

LOL. I was there in March, asked the exact same question, and got the exact same answer! (though he did say that GM is working on a fix to make it somehow meaningful, but in the meantime, it is an "ignore" feature).

khoeysr

Good information.

For some reason I thought I saw something here that referred to a software reflash to get it working correctly.

Not one of my go-to gauges.

DracoDan

Heh, I think I was in that class with you, Apr 13-14?

427Z0SX

I was confused as hell about the meaning of the % number. So right now it's bragging right for me, so I can ask gtr, p tts, viper, ferrari people about their ediff %, lol.

Maxpowers

Glad I came across this thread. Mine reads 7-10% most of time when driving in a straight line. Not sure why the clutch would need to disengage under these conditions. But I'll just ignore.

dbratten

Just saw this. I was there running the Red group.

--Dan

Higgs Boson

you don't want a locked diff in 99% of cases other than a fully controlled hard drag style launch.

SCB

I couldn't figure it out either (why it showed 5% or so when going 30 mph in a totally straight line).

Florida2000

should we also ignore the HP Meter? (the Pocket Gauge avail in Sport mode)

Painrace

So mine says 0% on the left and 30% on the right no matter what I do???

I give.

Jim

Higgs Boson

It's just a picture, the value is in orange above it. Seems like common sense to me.

ronsc1985

After riding around watching the number not changing hardly at all from straight down the road to a sharp turn it must be a measure of the line pressure to the clutches not the actual wheel to wheel speed differential. I was just driving around getting my 500 miles. Maybe if you are hard on it the numbers change but for now I won't be putting that screen up again.