Limited Slip Option?
07-11-2006, 09:49 PM
#46
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Originally Posted by SleepRM3
Hmm, I'm not sure which type BMW employs in their M cars. My old Mazda Rx7 Type FD ('93 Twin Turbo) used a "Torsen" (torque-sensing) limited slip diff. It worked very well in that car. I hear you on the higher end 911s and Carrera GTs coming with mechanical variable locking diffs, but I was referring to Porsches mere working people can afford LOL 
Yes, I agree that an LSD should be an option on every Porsche car made from the base Boxster on up...
07-13-2006, 12:44 AM
#47
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Originally Posted by GrantG
Porsche only offers clutch-type LSD's (none of the Quaife type 1-way torque biasing diffs are used)...
Originally Posted by GrantG
The BMW M Cars use an electronic locking diff. It is an interesting solution, since it can be integrated into the electronic network that controls their stability program (unlike Porsche).
We go forwards. We go backwards.
07-17-2006, 11:33 AM
#48
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Originally Posted by GrantG
The BMW M Cars use an electronic locking diff. It is an interesting solution, since it can be integrated into the electronic network that controls their stability program (unlike Porsche).
You are thinking of other BMWs (330i and such) where they use (EBD or electronic brake differential). That one is totally useless.
07-17-2006, 02:27 PM
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Originally Posted by amaist
Nope, they don't. It is a purely mechanical unit. There are no electric connections of any kind to the diff. You can replace it with an aftermarket unit and the car will not even know it. The only potential issue is higher ratio diffs in SMG cars affecting downshifts and even that hasn't stopped people.
You are thinking of other BMWs (330i and such) where they use (EBD or electronic brake differential). That one is totally useless.
You are thinking of other BMWs (330i and such) where they use (EBD or electronic brake differential). That one is totally useless.
07-17-2006, 05:50 PM
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Originally Posted by GrantG
No, I was definitely thinking of the M Variable Differential Lock. Maybe I'm wrong, but I thought its locking ratio was controlled by an active diff that could lock and release clutch plates with electronic input...
Here is an article I found on google describing it http://www.canadiandriver.com/articles/jk/at_011219.htm
