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  #49  
Old 11-11-2010, 01:14 PM
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Re: Locking the center differential

the engineers "claim" the 2011 Jeep QD2 is better......
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  #50  
Old 11-11-2010, 01:17 PM
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Re: Locking the center differential

MSCA, where are you? Maybe a member on here that lives close to you can test theirs out on that driveway
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  #51  
Old 11-11-2010, 01:22 PM
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Re: Locking the center differential

Quote:
Originally Posted by Scottina06 View Post
the engineers "claim" the 2011 Jeep QD2 is better......
Even though the ESLD was eliminated in the front? Does the WK2 have some other technology that the WK doesn't to make up for the missing front ESLD?

Damn, Jeep is so complicated with all of their different 4wd systems!
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  #52  
Old 11-11-2010, 01:22 PM
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Re: Locking the center differential

^chibianh, you been getting anymore high country snow wheelin' in? looking to break mine in turkeyday.
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  #53  
Old 11-11-2010, 01:24 PM
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Re: Locking the center differential

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Originally Posted by chibianh View Post
MSCA, where are you? Maybe a member on here that lives close to you can test theirs out on that driveway

I'm in NY. I live 20 miles north of the city, but the winter cabin is up near Syracuse, which is about 4 hours north of my house. If there are any members who live up that way, I'd love to meet up one day this coming winter!
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  #54  
Old 11-11-2010, 01:28 PM
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Re: Locking the center differential

heres some questions from the engineers chat is Sept.


Question:
One of the topics most often discussed relating to the new WK is the mysterious "disappearance" of the front ELSD. It's mentioned in the early literature and manuals, it has a part number, yet it never appeared when production started. The off-road community feels a lot of capability has been lost without the front ELSD. What was the reason it was decided to not use it, or will it reappear someday?

Answer:
The front ELSD was not need to make this new Jep the most capable Grand Cherokee yet. The chassis electronics (esp, abs, traction controll) systems are soo fast not that we were able to get amazing traction without a front ELSD. I can tell you from expreience (Moab ect) this Jeep will go anywhere.

Question:
can you explain the elsd a little to us. Weve had deep discussions into how it works on the wk2. aslo how does the front axle handle wheel slip now that the front elsd is gone...for now?

Answer:
The Electronic Locking Slip Differential (ELSD) essentually uses a clutch pack/motor to transfer torque seemlessly right-left. We use the throttle position sensor to monitor driver feedback and the wheel slip sensors to monitor tire traction. The software monitors all system performance and moves torque when needed.

Now...the discussion of the ELSD on the front was a very lengthly internal Jeep team discussion early in the program. We found in our testing that the better BLD software performance, slightly bigger brakes, improved fuel efficiency/reduced friction, and new T-case torque transfer out-weighed the potential front ELSD benefit. Bottom line, we believe the off-road and on-road performance are maximized with our 2011 system.
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  #55  
Old 11-11-2010, 01:32 PM
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Re: Locking the center differential

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Originally Posted by MSCA View Post
I'm in NY. I live 20 miles north of the city, but the winter cabin is up near Syracuse, which is about 4 hours north of my house. If there are any members who live up that way, I'd love to meet up one day this coming winter!
Perhaps a JGC with 22's and speed rated all season sneakers will fortuitously come along this winter and rescue your 4 runner, man-made sleds, and backhoe from your driveway.
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  #56  
Old 11-11-2010, 01:34 PM
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Re: Locking the center differential

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Originally Posted by moosehead View Post
Perhaps a JGC with 22's and speed rated all season sneakers will fortuitously come along this winter and rescue your 4 runner, man-made sleds, and backhoe from your driveway.
LOL, okay....so who here lives near Syracuse with a Grand Cherokee wearing 22's?
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  #57  
Old 11-11-2010, 02:29 PM
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Re: Locking the center differential

When they were asked about eliminating the from ELSD, the engineers said that they discovered that they got better results with higher efficiency by tailoring the traction control system.

The "Snow" setting on the Selec-Terrain system automatically sets the front/rear power distribution to 50/50 -- providing the same effect as a locking front/rear differential.

B
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Old 11-11-2010, 04:40 PM
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Re: Locking the center differential

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Originally Posted by moosehead View Post
^chibianh, you been getting anymore high country snow wheelin' in? looking to break mine in turkeyday.
yeah.. I'm up in the mtns at least 2-3 times a month.. moreso the past month because of the new Jeep.

where are you going to break in the beast?
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  #59  
Old 11-11-2010, 06:22 PM
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Re: Locking the center differential

Here's a pic of my 4Runner at my Aunt's house. She lives about 10 minutes from the cabin. As you can see, it's always snowing there!
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File Type: jpg Picture 019.JPG (78.9 KB, 18 views)
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  #60  
Old 11-11-2010, 06:24 PM
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Re: Locking the center differential

Quote:
Originally Posted by bpmcgee View Post

The "Snow" setting on the Selec-Terrain system automatically sets the front/rear power distribution to 50/50 -- providing the same effect as a locking front/rear differential.

B
That's interesting. So if you have the terrain select knob on the snow setting, you'll get a constant 50/50 split or is it more of an "on-demand" type thing? And just to be clear, we're not talking about 50/50 from side to side (like a front or rear diff), we're talking about 50/50 front and rear, like a center diff, right?
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