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LSD and DTC ?
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02-28-2013, 01:11 PM | #1 |
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LSD and DTC ?
So i was woundering if installing a LSD in my D, it would not interfere with the stock E-lsd in our car. I believe that we could not get full protection of the DTC when for example here in Montreal in cold winter with icy roads and slush, driving on a highway in bad conditions when you want your DTC to work properly. Anyone could help me out figure a way of reprogramming the DTC like the M3 have ???
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02-28-2013, 01:21 PM | #2 |
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I am thinking the opposite. I am thinking that its possible that the eLSD MAY actually help the TORSEN type LSD (like quaife) by applyin the brake, thus creating a load on the slipping wheel.
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02-28-2013, 01:28 PM | #3 |
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I have pondered this issue a bit and wondered if I might be shooting myself (or my ride) in the foot by installing the LSD. I will try to assess the issue on or about 15 March after I have the Quaife installed. That is assuming I don't find out the hard way, in which case I may go into hiding.
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02-28-2013, 07:39 PM | #4 |
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From what i understand, The DSC will kick in less frequently/quickly. I sincerely doubt hat you will be kicking yourself or your car anywhere...unless you get a speeding ticket on your test drive.
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02-28-2013, 09:15 PM | #5 | |
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03-02-2013, 04:25 PM | #6 | |||
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03-02-2013, 06:54 PM | #7 |
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Just a side note: With all the nannies off, from my experience at the 1/4 track using Micheline PSS tires (drag slicks were fine unlike the PSS's), the eLSD was still functioning, but I had to manually let off the fuel pedal myself (as opposed to the computer modulating power) as I got sideways VERY rapidly...
http://www.bimmerfest.com/forums/sho...d.php?t=647595 "Tried once with traction control completely off and it was a fricken' clown show. Car nearly went sideways before I took my foot off the pedal. " |
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03-02-2013, 09:47 PM | #8 |
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TDI, you were not running a LSD during this event, correct?
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03-02-2013, 10:08 PM | #9 |
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Good question! Maybe we could get out and spray that stuff on the tires that basketball guys spray on their shoes.
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2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al. |
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03-03-2013, 06:50 AM | #11 |
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Correct.
There's a lot of older threads about the e-LSD in the open diff bmw's and how it behaves with DSC/DTC and all nannies off. Those threads indicated the e-LSD was still operating with all nannies off, and my experience agrees with that (leaves 2 black tire marks upon heavy use of the skinny pedal). |
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03-03-2013, 12:26 PM | #14 |
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My Quaife LSD worked beautifully with the TC this winter on snow. You do need to be more carful in icy conditions since the LSD makes the rear end more mobile, and the TC doesn't always have time to cut in....but thats half the point of fitting a LSD, it makes the rear end more more predictable
Heres a good write up of just how good a LSD is on a 335i....In short you should have no worries http://www.birdsauto.com/editorial/e...iew-april-2007 |
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03-04-2013, 03:12 PM | #15 | |
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03-04-2013, 08:19 PM | #16 |
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I prefer more mobile as DTC is annoying as hell in the snow, often causing more harm than good.
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03-05-2013, 12:25 AM | #17 | |
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I have onhy positive say about Quaife. I have never have had any "dangerous" experiences with Quaife in slippery surfaces, only once in dry in the summer on the the first drive after Quaife was installed. I was taking off from intersection at full power and the backend of the car was trying to get pass me. That was only because I was trying to drive the car as I was driving it before the Quaife and traction control didn't have time to react the situation because of the enormous grip In winter if you are driving icy roads, dsc works as it has always worked. And I have noticed one other positive feature with Quaife: if you get in the situation that it's very slippery and the car is understearing out of control (as our cars seem to do very easily), just put your foot down, turn the wheels to direction where you want to go and let the dsc do it's thing.
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03-06-2013, 06:45 PM | #19 |
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