E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 02-05-2009, 03:24 PM   #1
OreoVsTheDead
Registered User
 
Join Date: Oct 2008
Location: UK
Posts: 72
My Ride: 330
330ci welded differential (100% lock) anyone done it?

May sound like a stupid idea but I just really want to get sideways and the cost a clutch type LSD installed is rediculous (1300+ in the UK and that's as cheap as they get here), so as many of the drifters on a budget do, welding is an option as I could get one all done for 500.

Question is, has anyone done this, if so what is it like? I know it will skip like crazy at low turning speeds but will the DTC have a fit? What's it like for every day driving? Motorways etc? Any help would be great!
OreoVsTheDead is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 02-05-2009, 03:29 PM   #2
SL Blak Soldier
Registered User
 
Join Date: Oct 2006
Location: Woodland Hills < SFV < LA < SoCal
Posts: 27,292
My Ride: 2001 3 Pedal M54b30
Send a message via AIM to SL Blak Soldier
we've had a discussion on BFC about this. I didn't have the balls to ever post in this forum because i know i was gonna get flamed. lol.

I thnk the dsc will have a major fit when your in slow speed situations where teh inside wheel skips.

I was really close to doing it. its just i don't want to run it every day so i'm waiting to get a 2nd diff so i could swap it in and out when i want.

My friend has one in his s14 which i've driven quiet a bit. As far as drifting goes... its absolutely great. the slightest flick and your sideways. If you trying to drive it in the rain, its a bit tricky, but hey that's just going to make you learn throttle control. lol. As far as parking lots, it gets annoying because it skips. Canyoning or track is where it fails, since it is 100% lock you can't really power out of corners like you want to be able to so it'll slow you down in that sense.
__________________

Last edited by SL Blak Soldier; 02-05-2009 at 03:31 PM.
SL Blak Soldier is offline   Reply With Quote
Old 02-05-2009, 03:30 PM   #3
mav909
Registered User
 
Join Date: May 2008
Location: taunton U.K
Posts: 358
My Ride: Rx8 231
Send a message via MSN to mav909
buy an e36 i think they come with lsd's and theyre dirt cheap now. sorry i dont really know about what you mentioned above.
is it not possible for us to get sideways with an open diff? obviously its not as great, but is it possible at all?
__________________
mav909 is offline   Reply With Quote
Old 02-05-2009, 03:33 PM   #4
SL Blak Soldier
Registered User
 
Join Date: Oct 2006
Location: Woodland Hills < SFV < LA < SoCal
Posts: 27,292
My Ride: 2001 3 Pedal M54b30
Send a message via AIM to SL Blak Soldier
Quote:
Originally Posted by mav909 View Post
buy an e36 i think they come with lsd's and theyre dirt cheap now. sorry i dont really know about what you mentioned above.
is it not possible for us to get sideways with an open diff? obviously its not as great, but is it possible at all?
its definitely possible, you have to pitch it in there with some speed and you can drift.

I don't know if you've ever drifted a car with lsd vs one without, but there is a lot more control with lsd.
__________________
SL Blak Soldier is offline   Reply With Quote
Old 02-05-2009, 03:54 PM   #5
OreoVsTheDead
Registered User
 
Join Date: Oct 2008
Location: UK
Posts: 72
My Ride: 330
It sucks without. I've had other cars with welders and 2-way's, 1.5-way's and they make a massive difference.

The fast driving in the twisties does bother me too, which is why i'm really unsure how much i'll comprimise the car with one. It's a daily driver too.
OreoVsTheDead is offline   Reply With Quote
Old 02-05-2009, 04:06 PM   #6
TxZHP04
Registered User
 
Join Date: Feb 2006
Location: DFW
Posts: 5,731
My Ride: ESS TS2+ ZHP
Plain and simple: you don't want to do that to a daily driver.
__________________
04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump
TxZHP04 is offline   Reply With Quote
Old 02-05-2009, 05:08 PM   #7
aggieE46
Keep it clean
 
aggieE46's Avatar
 
Join Date: Aug 2006
Location: Royse City
Posts: 8,030
My Ride: 03 Evo, 07 Passat
Send a message via AIM to aggieE46
I had a welded center differential in my AWD Talon. (Result of too many 6k clutch drops). It was good for launching, but pretty annoying in parking lots.
__________________
aggieE46 is offline   Reply With Quote
Old 02-05-2009, 07:46 PM   #8
SpeedDemon
Registered User
 
Join Date: Jul 2003
Location: Seattle
Posts: 1,939
My Ride: 08 M3/05 ZHP/08 R32
Quote:
Originally Posted by mav909 View Post
buy an e36 i think they come with lsd's and theyre dirt cheap now. sorry i dont really know about what you mentioned above.
is it not possible for us to get sideways with an open diff? obviously its not as great, but is it possible at all?
+1 on finding an early model E36 with a LSD from the factory. Look for a 1994 or earlier model with sport package and cold weather package and you're fairly likely to find an LSD.

Quote:
Originally Posted by TxZHP04 View Post
Plain and simple: you don't want to do that to a daily driver.
Yup, it is hell in a daily driver to go around turns with a welded diff
SpeedDemon is offline   Reply With Quote
Old 02-06-2009, 03:30 AM   #9
OreoVsTheDead
Registered User
 
Join Date: Oct 2008
Location: UK
Posts: 72
My Ride: 330
Does a 01 330ci have a medium case diff (Type 188) i think? If so, do you mean find an earlier version med case lsd and build that into mine?

Could be a plan worth exploring.
OreoVsTheDead is offline   Reply With Quote
Old 02-07-2009, 03:20 AM   #10
sjo328ci
Registered User
 
Join Date: Mar 2003
Location: San Jose, CA
Posts: 154
My Ride: 2000 328Ci
This is a really bad idea

Your car will be optimized for one thing (sliding sideways) and ruined for everything else. Just spend the money for a good lsd (Blanton or Metric Mechanic).
__________________
2000 BMW 328Ci
CP 11.5:1 pistons
Schrick 264/248 cams
M54 crankshaft
Crower MaxiLight forged alloy connecting rods
Ferrea 1mm oversize intake and exhaust valves,
valve springs, and titanium spring retainers
Technik Stage 3 cylinder head (mild port and polish)
Technik tubular exhaust header
227 rwhp (265 crank hp est)

What's the point of having money if you don't have something worth wasting it on?
sjo328ci is offline   Reply With Quote
Old 02-07-2009, 09:57 AM   #11
OreoVsTheDead
Registered User
 
Join Date: Oct 2008
Location: UK
Posts: 72
My Ride: 330
Yeah, I've written the idea off. Going to have to save up for a Kaaz I think or do some research into building an LSD from an earlier model into the 330 casing, which could be as costly in time + labour.
OreoVsTheDead is offline   Reply With Quote
Old 02-07-2009, 11:51 AM   #12
TxZHP04
Registered User
 
Join Date: Feb 2006
Location: DFW
Posts: 5,731
My Ride: ESS TS2+ ZHP
There is no older model LSD that is a direct fit. From the Performance Gearing web site:

Quote:
Because of the ring and pinion offset and smaller confines of the main housing itself, no existing stock limited slip unit will fit any of the following '95 and later models: E39 (except M5), E38 (3/96 and later), E46 (except M3), Z8, X5, Z4, E65 and the new 5 series.
__________________
04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump
TxZHP04 is offline   Reply With Quote
Old 02-23-2009, 12:20 PM   #13
akb4
Registered User
 
Join Date: May 2006
Location: Myrtle Beach, SC
Posts: 565
My Ride: is gone :(
so does this rule out a LSD all together? can we put one in without the DSC going crazy? and will tracking the car be better with an LSD or is it still for just going sideways?
__________________
akb4 is offline   Reply With Quote
Old 02-23-2009, 01:49 PM   #14
tinkwithanr
Registered User
 
Join Date: Oct 2006
Location: Springfield OH
Posts: 726
My Ride: '00 323i + '75 2002
an lsd will make a huge different when tracking the car. However a welded diff (i.e. full lock) is pretty much for only straight line launches and drifting.
__________________
Tinker Engineering - 2014

Mica - 2000 BMW 323i - The one that started it all
Fiona - 1975 BMW 2002 - The Definition of Project Creep
Heidi - 1988 BMW M5 - The piece of BMW history
Silvia - 2013 Subaru WRX - Stock, for now
tinkwithanr is offline   Reply With Quote
Old 02-23-2009, 02:01 PM   #15
RattleMYzhp
Registered User
 
Join Date: Sep 2008
Location: Haverhill, MA
Posts: 188
My Ride: Imola ZHP
man keep your eyes open for a member selling a diff. I saw an diffs online lsd going for $1500 not to long ago. my girlfriend wouldn't let me make the plunge though.
RattleMYzhp is offline   Reply With Quote
Old 02-23-2009, 03:29 PM   #16
akb4
Registered User
 
Join Date: May 2006
Location: Myrtle Beach, SC
Posts: 565
My Ride: is gone :(
so whats better? 1.5 way/ 2 way? whats the difference?
__________________
akb4 is offline   Reply With Quote
Old 02-25-2009, 12:37 AM   #17
SL Blak Soldier
Registered User
 
Join Date: Oct 2006
Location: Woodland Hills < SFV < LA < SoCal
Posts: 27,292
My Ride: 2001 3 Pedal M54b30
Send a message via AIM to SL Blak Soldier
Quote:
Originally Posted by akb4 View Post
so whats better? 1.5 way/ 2 way? whats the difference?
depends on applications.

for instance, 1 way lsds only lock on acceleration, 1.5s lock on acceleration and partially when you slow down. 2 way is on acceleration AND deceleration.
__________________
SL Blak Soldier is offline   Reply With Quote
Old 02-27-2009, 08:06 PM   #18
akb4
Registered User
 
Join Date: May 2006
Location: Myrtle Beach, SC
Posts: 565
My Ride: is gone :(
can you give me an example of when locking would be good when slowing down?
and whats the advantage/disadvantages of having partially/full lock?
__________________
akb4 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Censor is OFF





All times are GMT -5. The time now is 10:46 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use