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11-28-2012, 12:38 AM
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#1
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DIYer
Join Date: Apr 2007
Location: Gatineau, Qc
Posts: 102
Car: e30 325is '90 300k!
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e30 LSD diff
Just picked up a "new" LSD diff for my 325, as I will be running it this winter!
Owner didn't know the ratio, after looking up online it seems like it is a 2.93 with mechanical LSD. It'll be good for crusing on the highway but will I miss my 3.73?
Can't wait to put it in and try it!
Last edited by Tekals; 11-28-2012 at 01:16 AM.
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11-28-2012, 08:08 AM
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#2
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2nd Gear Member
Join Date: Jun 2011
Location: Waterloo
Posts: 261
Car: 87 325is
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if you have the stock m20, you will definitely miss your 3.73.
I swapped my 3.73 for a 3.46 and drove for a few months like that before I did my 24v swap, and even the 3.46 felt like driving in molasses with the stock m20.
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11-28-2012, 09:51 AM
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#3
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DIYer
Join Date: Apr 2007
Location: Gatineau, Qc
Posts: 102
Car: e30 325is '90 300k!
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Ok , well I'm rebuilding another 3.73LSD anyway for the futur and it wasn't ready and I got this one for cheap so I jumped on it and it should be fine for this winter!
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11-28-2012, 10:02 AM
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#4
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2nd Gear Member
Join Date: Jun 2011
Location: Waterloo
Posts: 261
Car: 87 325is
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Ya its not like you're doing much spirited driving in the winter anyway, and if you wanna get sideways in the snow a 2.93 will do just fine anyway.
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11-28-2012, 10:03 AM
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#5
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DIYer
Join Date: Apr 2007
Location: Gatineau, Qc
Posts: 102
Car: e30 325is '90 300k!
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 That's what I wanted to hear! lol
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11-28-2012, 08:37 PM
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#6
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if I lived . I would be ~
Join Date: Mar 2004
Location: Ottawa
Posts: 5,797
Car: e30 with e91 beater
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I had a regular ol' eta with the 2.93LSD. It was perfect.
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11-29-2012, 02:26 PM
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#7
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Moderator/Event-Coordinator
Join Date: Feb 2002
Location: Stance
Posts: 12,608
Car: S54
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On the bright side it's geared to hit 310km/h with the stock rev limit. The downside is that getting to half that will take an eternity.
2000rpm at 100 in 5th. lol
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11-29-2012, 07:59 PM
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#8
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DIYer
Join Date: Apr 2007
Location: Gatineau, Qc
Posts: 102
Car: e30 325is '90 300k!
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I installed it yesterday. Feels like I lost my first gear and have a new 6th gear, RPM dropped from 3100ish down to 2500 at 120km/h.
Unfortunately, it is making a strong grinding noise, even after driving from Ottawa to Qc city
LSD is great though!
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11-29-2012, 09:31 PM
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#9
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2nd Gear Member
Join Date: Jun 2011
Location: Waterloo
Posts: 261
Car: 87 325is
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maybe stupid question, but there is oil in it right?
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11-30-2012, 09:05 AM
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#10
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DIYer
Join Date: Apr 2007
Location: Gatineau, Qc
Posts: 102
Car: e30 325is '90 300k!
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Yeah, I was about to change it, but it looked perfect. I'll check it again to make sure it's still decent, as it might had shit just sitting at the bottom...
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11-30-2012, 10:09 AM
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#11
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Cars in Perpetual Repair
Join Date: Nov 2007
Location: Guelph
Posts: 5,207
Car: 328i & 327i turbo
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Quote:
Originally Posted by Mystikal
On the bright side it's geared to hit 310km/h with the stock rev limit. The downside is that getting to half that will take an eternity.
2000rpm at 100 in 5th. lol
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Slap a big turbo on it and you'll be able to hit 310 
My '84 has a 2.76 and I don't mind it at all.
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11-30-2012, 10:39 AM
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#12
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DIYer
Join Date: Apr 2007
Location: Gatineau, Qc
Posts: 102
Car: e30 325is '90 300k!
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turbo... maybe one day when I get my own garage.
How much does a m20 turbo build cost ?
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12-06-2012, 12:38 PM
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#13
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Clint Eastwood
Join Date: Oct 2010
Location: Ottawa, ON, Canada
Posts: 1,295
Car: Ugly M50 swapped E30
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Can be done for $2000, budget for $5000.
__________________
REMEMBER: Be safe and have fun is Rule Number 1.
Quote:
Originally Posted by 411
just letting this furom [*forum] know
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12-10-2012, 06:37 PM
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#14
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2nd Gear Member
Join Date: Mar 2011
Location: Dunnville
Posts: 101
Car: 84 318i
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Thinking a 4.44 would be nice jump! 6,000 RPM at 120 on the hwy!
__________________
See the #90 DIRT 318i @ www.facebook.com/brewstermotorsports
Just cause it has BMW logo, doesnt mean the logo is MADE OF PURE GOLD. If its rusted and 20 years old. ITS RUSTED AND 20 YEARS OLD!!!
Locked Your DIff and hate it?
Give me a shout, will buy em up cheap, DIRT tracks are the ONLY place for a welded diff!!
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12-19-2012, 11:34 PM
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#15
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Permanently Dirty
Join Date: Aug 2010
Location: Etobicoke
Posts: 446
Car: E30 1990 325I
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the 2.93 isnt so bad, I have it in my car as im preparing for boosting it in the future.. the highway is a nice cruise, and you can hit 175 on Mosport GP track  ... its definitly doesnt have the pepiness as before but some LSD does wonders aroud corners ..
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