Fitting a M3 LSD into a E92 335D

mob17 · 03-09-2013, 12:26 PM

I have been thinking about an LSD for a while now. First choice was to get the Quaife but due to the 335D engineering (somethings welded) this would cost over £2k fitted even when handing back the old LSD.

So recently i was thinking that why not use the M3 LSD instead? I was already planning to change some of the 335D's suspension bits to M3 ones (have read Alpina_b3_lux having some good results doing this).

I know it won't be a straight swap, so could someone please provide me with all the parts needed? Also, does the M3 LSD have any in-cabin electronic adjustments? If so would that need to be incorporated?

Many thanks.

335dM · 03-09-2013, 03:24 PM

You can't do it because of the wrong ratio in the diff itself. And I'm sure something else physically is not bolt on.

FormerRotor · 03-09-2013, 09:21 PM

The m3 LSD doesn't have any external adjustment capability. As dM mentioned you may have trouble with the gear ratio unless you re-gear as it is not ideal for our power band. Driveshaft would likely have to be custom as I believe the two cars use different sizes. Track may be slightly different.

mob17 · 03-15-2013, 02:27 PM

Quote:

Originally Posted by FormerRotor

The m3 LSD doesn't have any external adjustment capability. As dM mentioned you may have trouble with the gear ratio unless you re-gear as it is not ideal for our power band. Driveshaft would likely have to be custom as I believe the two cars use different sizes. Track may be slightly different.

Cheers. I guess the quaife is the better option then?

GreekboyD · 03-16-2013, 07:06 AM

Quaife, Wavetrac or OS Giken.

Moxie · 03-16-2013, 03:48 PM

http://www.birdsauto.com/

GreekboyD · 03-16-2013, 03:53 PM

Quote:

Originally Posted by Moxie

http://www.birdsauto.com/

Yep. With mob17 being in the UK, this is his best route.

mob17 · 03-17-2013, 11:30 AM

Cheers guys. I guess fitting an M3 one would take too much work and would cost the same as the Quaiffe fitted. But what i don't like with the Quaiffe is that you pay £2k and give back your diff, then get a final drive unit that's not brand new. But i suppose its covered by their warranty so should be ok.

03-09-2013, 12:26 PM	#1
mob17 Major General 400 Rep 5,623 Posts Drives: E92 335D Join Date: Mar 2012 Location: East Midlands, UK iTrader: (5)	Fitting a M3 LSD into a E92 335D I have been thinking about an LSD for a while now. First choice was to get the Quaife but due to the 335D engineering (somethings welded) this would cost over £2k fitted even when handing back the old LSD. So recently i was thinking that why not use the M3 LSD instead? I was already planning to change some of the 335D's suspension bits to M3 ones (have read Alpina_b3_lux having some good results doing this). I know it won't be a straight swap, so could someone please provide me with all the parts needed? Also, does the M3 LSD have any in-cabin electronic adjustments? If so would that need to be incorporated? Many thanks.
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03-09-2013, 03:24 PM	#2
335dM Major 128 Rep 1,362 Posts Drives: 335d m package Join Date: May 2011 Location: montreal iTrader: (0)	You can't do it because of the wrong ratio in the diff itself. And I'm sure something else physically is not bolt on.
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03-09-2013, 09:21 PM	#3
FormerRotor Lieutenant Colonel 96 Rep 1,592 Posts Drives: 2011 335d, M-Sport Join Date: Jan 2012 Location: MD iTrader: (5) Garage List 2011 BMW 335d [0.00] 2017 BMW X5 xdrive35d [0.00]	The m3 LSD doesn't have any external adjustment capability. As dM mentioned you may have trouble with the gear ratio unless you re-gear as it is not ideal for our power band. Driveshaft would likely have to be custom as I believe the two cars use different sizes. Track may be slightly different. __________________ My Picture Threads (Oldest to Newest): 1 2 3 Join BMW CCA! (Use my link and I get credit )
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03-16-2013, 07:06 AM	#5
GreekboyD Brigadier General 411 Rep 3,049 Posts Drives: 2009 BMW 335d Join Date: Jan 2012 Location: Toronto, ON, Canada iTrader: (0) Garage List 2009 BMW 335d [8.00]	Quaife, Wavetrac or OS Giken.
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03-16-2013, 03:48 PM	#6
Moxie Lieutenant Colonel 67 Rep 1,895 Posts Drives: AW 328d Touring/SG 335d Join Date: Jul 2009 Location: North Carolina iTrader: (12)	http://www.birdsauto.com/
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03-17-2013, 11:30 AM	#8
mob17 Major General 400 Rep 5,623 Posts Drives: E92 335D Join Date: Mar 2012 Location: East Midlands, UK iTrader: (5)	Cheers guys. I guess fitting an M3 one would take too much work and would cost the same as the Quaiffe fitted. But what i don't like with the Quaiffe is that you pay £2k and give back your diff, then get a final drive unit that's not brand new. But i suppose its covered by their warranty so should be ok.
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