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10-29-2009, 11:33 AM
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#16
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6th Gear Member
Join Date: Dec 2003
Location: Ottawa, ON
Posts: 1,876
Car: 2007 328XiT
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Quote:
Originally Posted by njansenv
How much do you want for the 2.93LSD ScotcH?
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I dunno ... how about $200 + shipping (or pickup in Ottawa)? I might be able to deliver in a couple of weeks since my wife is heading to Burlington.
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2007 BMW 328Xi Touring, 6 speed
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10-29-2009, 04:45 PM
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#17
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2nd Gear Member
Join Date: Aug 2009
Location: Detroit/Brampton
Posts: 181
Car: '91 318i
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is there anything that needs to be done to anything else to the car if you're doing something like this? or is it just a case of swap out open for LSD and you're set
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10-29-2009, 05:07 PM
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#18
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formerly e36.M52B25
Join Date: Apr 2009
Location: Mississauga, ON
Posts: 235
Car: 04 330ci
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Edit: misunderstood you, it's plug and play.
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| M54B30/6MT Swap | KW V2 Coilovers |3.46 Diff |
|Genuine 19x8.5/9.5 Style 172M Wheels|
Last edited by Fern3; 10-29-2009 at 05:15 PM.
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10-29-2009, 07:35 PM
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#19
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2nd Gear Member
Join Date: Aug 2009
Location: Detroit/Brampton
Posts: 181
Car: '91 318i
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sorry i should have been more clear. i meant that in the sense of will anything else have to be upgraded as a result. for example, when swapping in a bigger engine you tend to upgrade other things like suspension, transmission etc.
will the LSD require anything new?
my 318 is pretty much stock. one of the reasons i'm wanting an LSD is because during the winters, i'm in kingston and we get bad winters and with an open differential i've found that i get stuck way too easily.
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10-29-2009, 08:16 PM
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#20
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formerly e36.M52B25
Join Date: Apr 2009
Location: Mississauga, ON
Posts: 235
Car: 04 330ci
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The LSD won't require anything new, you'll
just have to shift more often unless you buy an LSD with the same ratio in that case all you'll gain is limited slip, your torque at the wheel and shifting frequency will remain the same
__________________
| M54B30/6MT Swap | KW V2 Coilovers |3.46 Diff |
|Genuine 19x8.5/9.5 Style 172M Wheels|
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10-29-2009, 11:23 PM
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#21
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Lookin like M
Join Date: Nov 2008
Location: mississauga/downtown
Posts: 660
Car: vwmk2,Mk3,e36,e39
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[QUOTE=BMXWill;1360503]
now .[/with my 3.23 I have to drive 15km/h slower than normal on the highway to prevent my girlfriend from going deaf lol]
why will she go deaf
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10-30-2009, 12:58 AM
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#22
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2nd Gear Member
Join Date: Sep 2008
Location: Burlington
Posts: 269
Car: E36, E90, 2002
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[QUOTE=mhamouda;1361161]
Quote:
Originally Posted by BMXWill
now .[/with my 3.23 I have to drive 15km/h slower than normal on the highway to prevent my girlfriend from going deaf lol]
why will she go deaf
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If im doing 130km/h my rpms are around 3600 and with my magnaflow exhaust it's really loud inside. If I had a different exhaust there wouldn't be a problem im sure but I enjoy the sound when I'm driving alone, all in all it's worth it. haha
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10-30-2009, 12:14 PM
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#23
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4th Gear Member
Join Date: Feb 2005
Location: Toronto
Posts: 737
Car: 2001 M5
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Quote:
Originally Posted by ryanjv
sorry i should have been more clear. i meant that in the sense of will anything else have to be upgraded as a result. for example, when swapping in a bigger engine you tend to upgrade other things like suspension, transmission etc.
will the LSD require anything new?
my 318 is pretty much stock. one of the reasons i'm wanting an LSD is because during the winters, i'm in kingston and we get bad winters and with an open differential i've found that i get stuck way too easily.
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A new diff bolt may not hurt.
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10-30-2009, 11:29 PM
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#24
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2nd Gear Member
Join Date: May 2008
Location: ptbo
Posts: 210
Car: 318is ZX10R
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Some good info in this thread, but this:
Quote:
Originally Posted by propr'one
3.38
2.91/3.23=10.9% increase in torque
2.91/3.38=16.1% increase in torque
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is total nonsense!!!
Sorry Ivan, I dont know where you found this, but your source is sorely mistaken
Torque cannot be increased past the flywheel, unless you use a torque, or preferably a stall, converter in an auto transmission.
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10-31-2009, 02:27 AM
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#25
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"Mint"
Join Date: May 2006
Location: Toronto
Posts: 4,401
Car: '98 328is + '93 525i
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Quote:
Originally Posted by BSL
Some good info in this thread, but this:
is total nonsense!!!
Sorry Ivan, I dont know where you found this, but your source is sorely mistaken
Torque cannot be increased past the flywheel, unless you use a torque, or preferably a stall, converter in an auto transmission.
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You are wrong. Wheel torque would be affected by everything that rotates in the driveline causing the ultimate torque at the surface of the wheel. He got the figures from 3.38/2.91 = 1.16 (116%) for example compared to 3.23/2.91 (110%)
__________________
1998 BMW 328is - summer
1992 Ford E250 Sportsmobile - daily
1993 BMW 525i - sold
1994 BMW 325i - sold
1992 BMW 325i - gone
1988 Mercedes Benz 190E 2.3-8V - sold
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10-31-2009, 02:51 AM
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#26
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formerly e36.M52B25
Join Date: Apr 2009
Location: Mississauga, ON
Posts: 235
Car: 04 330ci
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Quote:
Originally Posted by Dr. Flyview
You are wrong. Wheel torque would be affected by everything that rotates in the driveline causing the ultimate torque at the surface of the wheel. He got the figures from 3.38/2.91 = 1.16 (116%) for example compared to 3.23/2.91 (110%)
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THANK YOU!
the diff doesn't change the torque at the flywheel, the bigger the gears in the diff the more torque will be supplied at the wheels
__________________
| M54B30/6MT Swap | KW V2 Coilovers |3.46 Diff |
|Genuine 19x8.5/9.5 Style 172M Wheels|
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10-31-2009, 09:47 AM
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#27
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2nd Gear Member
Join Date: May 2008
Location: ptbo
Posts: 210
Car: 318is ZX10R
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I must be mistaken. Sorry for my over reaction.
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10-31-2009, 11:30 AM
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#28
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Moderator/Event-Coordinator
Join Date: Feb 2002
Location: Stance
Posts: 13,107
Car: S54 Z3M & 325iT/5
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Note though, that just because the torque is multiplied to the ground doesn't mean that the car will be faster. It will *feel* faster because of the increased torque, but the car will not necessarily *be* faster because of how flat the powerbands are on these cars combined with the time spent shifting.
I've crunched the numbers many a time, putting a shorter diff in ANY 6cyl E36 motor that doesn't at least have cams will not make it measurably faster. The reason the M52 came with such a tall diff is because the car falls flat on its face after 6000rpm, and makes great power from 3000-on. Installing a shorter diff does not make the car faster, although it will feel it.
The only exception could be an M52 with an M50 manifold running properly (dunno if that requires tuning). With the shifted powerband, something like a 3.15 or 3.23 would likely help. But anything else is just tricking yourself.
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10-31-2009, 11:36 AM
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#29
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Moderator/Event-Coordinator
Join Date: Feb 2002
Location: Stance
Posts: 13,107
Car: S54 Z3M & 325iT/5
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Quote:
Originally Posted by mech9T8
A new diff bolt may not hurt.
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This is very, very true.
And buy the bolt from the dealer, it's a special grade like 9 piece of art. If someone who worked on the car before you owned it puts in a non-spec one and you drive your car hard, it will snap. Ask me how I know.
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10-31-2009, 12:27 PM
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#30
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formerly e36.M52B25
Join Date: Apr 2009
Location: Mississauga, ON
Posts: 235
Car: 04 330ci
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Thanks for the input mystikal. I'm hoping my current mods (m50 with aa tune) will help add to the lsds potential
__________________
| M54B30/6MT Swap | KW V2 Coilovers |3.46 Diff |
|Genuine 19x8.5/9.5 Style 172M Wheels|
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