do i have a lsd? - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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#1 (permalink) Old 11-13-2006, 01:42 AM
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do i have a lsd?

i remember reading this somewhere, but couldnt find the thread

i peeled out in a parking lot and noticed that my car left tire marks for both tires...does that mean i have an lsd?


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#2 (permalink) Old 11-13-2006, 01:49 AM
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Quote:
Originally Posted by MiguelACA
i remember reading this somewhere, but couldnt find the thread

i peeled out in a parking lot and noticed that my car left tire marks for both tires...does that mean i have an lsd?
Assuming that is was not wet out, and you left two distinct tire tracks, i would say 95.4% chance you have lsd.:lol:

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#3 (permalink) Old 11-13-2006, 02:34 AM
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lol, not it wasnt wet, i left a perfect 11 on the ground


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#4 (permalink) Old 11-13-2006, 07:47 AM
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Lsd

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#5 (permalink) Old 11-13-2006, 09:50 AM
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awesome, isnt that like a rare thing on these cars? i have a 95 325i


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#6 (permalink) Old 11-13-2006, 10:30 AM
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Not too sure. My 525i has it as well. I am going to upgrade to the 4.10 though.

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#7 (permalink) Old 11-13-2006, 05:46 PM
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sp0rky is an unknown quantity at this point
leaving an "11" doesn't always mean you have an LSD and many open diff cars will leave two lines under optimal conditions. The question is will it ALWAYS leave two tire marks and when going around a hard corner, does the inside wheel only always slip?

BTW - to the guy above me - if your car is auto, you already have a 4.10 and you should upgrade to a 4.27

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#8 (permalink) Old 11-13-2006, 06:01 PM
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Quote:
Originally Posted by sp0rky
leaving an "11" doesn't always mean you have an LSD and many open diff cars will leave two lines under optimal conditions. The question is will it ALWAYS leave two tire marks and when going around a hard corner, does the inside wheel only always slip?

BTW - to the guy above me - if your car is auto, you already have a 4.10 and you should upgrade to a 4.27
I have a 5 speed.

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#9 (permalink) Old 11-13-2006, 11:08 PM
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i never understood lsd, so if my car is parked with one wheel on the grass nd one wheel on the road, i try to do a burnout and only the wheel on the grass spins, does that mean no lsd?

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#10 (permalink) Old 11-13-2006, 11:58 PM
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i dont think u have an LSD miguel. im pretty sure it didnt come standard on non M e36's. i could just be talking out of my ass tho lol

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#11 (permalink) Old 11-14-2006, 12:58 AM
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Isn't an easy test to determine if you have a LSD:
1. Jack up the rear of the car so both wheels are off the ground
2. Spin one tire by hand
3. Observe the direction the other rear tire spins
4. If they spin in the same direction you have LSD if the spin in opposite directions you don't.

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#12 (permalink) Old 11-14-2006, 03:30 AM
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or you can just look to see if you car has a S--- tag on it, look at the rear diff and theres a little metal tag on it, if the number starts with an S its LSD if not its not, theres about a 99.9999999999% chance its not LSD unless someone put an M3 diff in... After the E30 BMW stopped putting the LSD units in most of their cars...

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#13 (permalink) Old 11-14-2006, 12:34 PM
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You can still leave an "11" under the right conditions in which both wheels have equal grip. Chances of an LSD are extremely limited unless the previous owner swapped one in.


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#14 (permalink) Old 11-14-2006, 03:20 PM
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hmm...makes sense...ill check the differential out later just to be sure


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#15 (permalink) Old 11-14-2006, 05:09 PM
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Quote:
Originally Posted by Da Prophecy
Isn't an easy test to determine if you have a LSD:
1. Jack up the rear of the car so both wheels are off the ground
2. Spin one tire by hand
3. Observe the direction the other rear tire spins
4. If they spin in the same direction you have LSD if the spin in opposite directions you don't.

Kyle Rogers
What if the other wheel does not spin? That is how mine behave.

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