RE: Hail Quattro!! (stooopid question)

[Reiner Fink <reinerf@microsoft.com>]

Achille, 
The A4 does not have diff lock switches, instead it has EDL (electronic
differential locks), a computer detects wheelslip and lock the diffs
automagically. One of the first projects that I plan to undertake a year
or so from now is monitoring the EDL in action (mointoring when it locks
the diffs under various driving conditions), as well as installing some
manual differential lock switches in case I want to override the
electronics. It shouldnt be to hard, just apply the right voltage at the
right spot and the car thinks the computer is ordering the diffs to
lock. If someone else who knows more about torsen differentials and EDL
can give me any guidance, my ignorant ear would be happy to listen.

Basically when you lock the center differential this splits power
equally between the front and rear, and when you lock the rear diff,
both rear wheels turn at the same rate (note: my experience with this
comes from playing with capsella as a child :-) Can someone else say
more on this or under what conditions you would want to lock the center
diff or both diffs?

 -reiner

>----------
>From: 	Achille Riviello[SMTP:acriviel@mailhost.ecn.uoknor.edu]
>Sent: 	Wednesday, October 09, 1996 10:38 AM
>To: 	Bob D'Amato; Audi Newsgroup
>Subject: 	Re: Hail Quattro!! (stooopid question)
>
>At 11:41 AM 10/9/96 -0400, Bob D'Amato wrote:
>>
>>My quattro story du jour.  Last night I went riding around to test out my 
>>new hella's, and somehow p.o'd some guy in a trans am. (not sure how, but 
>>I couldnt lose him.) Its been raining hard all day by this time, so I 
>>figgered I use it to my advantage. He followed me to a road that was a 
>>dead end...(I did that on purpose, Im familiar with the land, it dead 
>>ends, but there is a hill that is all mud due to construction and on top 
>>of the hill is another road out) I sat at the bottom for a second. Locked 
>>my diff...and climbed that sucker! Now the guy in the pontiarc is saying 
>>"Hell, if he can, I can!" Bzzzzzt! I covered him in mud, sat at the top, 
>>gave him a ..umm...salute and took off down the other road. Ahhh yes, 
>>another one for the Q.
>>
>>Bob
>>
>>
>What Q do you have?  And how did you "lock your differential"?  I can't do
>that on my A4Q (can I???).
>
>Achille Riviello
>acriviel@mailhost.ecn.uoknor.edu
>83 4000s, 200+k miles,
>96 A4Q, 240 miles,
>HK USP45,
>HK P7M13
>"In a world of compromise, some don't"--HK
>
>