TECH: Diff swap - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

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.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 05-23-2004, 08:40 PM   #1 (permalink)
You Can Has A Custom Title!!
 
thekid's Avatar
 
Join Date: Jan 2004
Location: Jackson MS
Car: 2010 (Prefer not to say here).
Posts: 3,445
Photos:
thekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond repute
Send a message via ICQ to thekid Send a message via AIM to thekid
I'm looking at swapping my diff to a LSD. I have a 318i, and I've heard that you can swap in a LSD from a 325i (I believe). If thats the diff that I heard about, at 70 mph in 5th I'd be at 4,200 rpms. Has anyone done this swap? or swapped for a different diff? or does any one know the ratios for the different E36 diffs or other diffs that can be swapped in? Lots of questions I know, but this should be an excelent thing, and really help off the line acceleration, traction but lower top speed (which is fine with me).
thekid is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-23-2004, 08:49 PM   #2 (permalink)
You Can Has A Custom Title!!
 
Kevin325i's Avatar
 
Join Date: Mar 2004
Location: Madison, WI
Car:
Posts: 2,613
Photos:
Kevin325i is an unknown quantity at this point
Send a message via AIM to Kevin325i
Model (E36) Stock Gear Ratio
318iS, Ti Manual Transmission 3.45
318iS, Ti, Automatic Trans 4.44
325 Manual Transmission 3.15
328 Manual Transmission 2.93
325/328 Automatic Transmission 3.91
M3 3.0 3.15
M3 3.2 , Auto and Lightweight 3.23


Kevin
__________________
Kevin (President TBEA)

"WAAAAAAARRRRRIORS, come out to plaaaaay."
Kevin325i is offline   Reply With Quote
Old 05-23-2004, 09:40 PM   #3 (permalink)
You Can Has A Custom Title!!
 
thekid's Avatar
 
Join Date: Jan 2004
Location: Jackson MS
Car: 2010 (Prefer not to say here).
Posts: 3,445
Photos:
thekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond repute
Send a message via ICQ to thekid Send a message via AIM to thekid
um.. thanks, but I was wondering about diffrential ratios, not tranny ratios.... Sorry if I've confused anybody.
thekid is offline   Reply With Quote
Old 05-23-2004, 09:43 PM   #4 (permalink)
You Can Has A Custom Title!!
 
Kevin325i's Avatar
 
Join Date: Mar 2004
Location: Madison, WI
Car:
Posts: 2,613
Photos:
Kevin325i is an unknown quantity at this point
Send a message via AIM to Kevin325i
Those are differential ratios. Saying manual and automatic is because they gear the auto and manual differently.

Kevin
__________________
Kevin (President TBEA)

"WAAAAAAARRRRRIORS, come out to plaaaaay."
Kevin325i is offline   Reply With Quote
Old 05-23-2004, 09:44 PM   #5 (permalink)
You Can Has A Custom Title!!
 
thekid's Avatar
 
Join Date: Jan 2004
Location: Jackson MS
Car: 2010 (Prefer not to say here).
Posts: 3,445
Photos:
thekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond repute
Send a message via ICQ to thekid Send a message via AIM to thekid
ah ok. When you said gear ratios at the top, that got me confused. Thanks.
thekid is offline   Reply With Quote
Old 05-23-2004, 09:48 PM   #6 (permalink)
You Can Has A Custom Title!!
 
Kevin325i's Avatar
 
Join Date: Mar 2004
Location: Madison, WI
Car:
Posts: 2,613
Photos:
Kevin325i is an unknown quantity at this point
Send a message via AIM to Kevin325i
I'm not sure if it's entirely acurate however. I thought the LSD and open differentials were geared differently.

At any rate, PM Autotechnica. He's played around with differntial ratios in his 318

Kevin
__________________
Kevin (President TBEA)

"WAAAAAAARRRRRIORS, come out to plaaaaay."
Kevin325i is offline   Reply With Quote
Old 05-24-2004, 12:45 AM   #7 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
You cannot swap a 325 diff in a 318 without also changing the driveshaft. I also was interested in a swap, until I leanred the 325/328 diffs were designed differently than the 4cyl engines' diffs. The lengths are different.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 05-24-2004, 10:26 AM   #8 (permalink)
You Can Has A Custom Title!!
 
thekid's Avatar
 
Join Date: Jan 2004
Location: Jackson MS
Car: 2010 (Prefer not to say here).
Posts: 3,445
Photos:
thekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond repute
Send a message via ICQ to thekid Send a message via AIM to thekid
hmmm really? I'll have to check into that and see whats possible. Is there another diff that would produce similiar results that you have found?
thekid is offline   Reply With Quote
Old 05-24-2004, 11:26 AM   #9 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
the only diff that would make a difference and would be easy and cheaper is the diff from an auto. Say goodbye to your top speed, but it would make a large impact on acceleration. I wanted a 3.91 for the longest time, but found out the 4.44 was the only one that would work, and those revs are just too high for me.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 05-24-2004, 12:16 PM   #10 (permalink)
You Can Has A Custom Title!!
 
thekid's Avatar
 
Join Date: Jan 2004
Location: Jackson MS
Car: 2010 (Prefer not to say here).
Posts: 3,445
Photos:
thekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond repute
Send a message via ICQ to thekid Send a message via AIM to thekid
what kinda revs are we talking about with the 4.44
thekid is offline   Reply With Quote
Old 05-24-2004, 12:22 PM   #11 (permalink)
You Can Has A Custom Title!!
 
thekid's Avatar
 
Join Date: Jan 2004
Location: Jackson MS
Car: 2010 (Prefer not to say here).
Posts: 3,445
Photos:
thekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond reputethekid has a reputation beyond repute
Send a message via ICQ to thekid Send a message via AIM to thekid
Also does the whole drive shaft have to be changed or just the rear? I'm still looking into this as a possibility because I'm getting it part and installed in trade for an engine (5sfe from a 92 celica), so as long as the parts would be less than $500 it should be a go.
thekid is offline   Reply With Quote
Old 05-24-2004, 02:03 PM   #12 (permalink)
Defector
 
El Presidente's Avatar
 
Join Date: Dec 2002
Location: Long Island
Car:
Posts: 5,973
Photos:
El Presidente is an unknown quantity at this point
Send a message via AIM to El Presidente
I don't know about the driveshaft, but the revs would probably be around 4 grand at 60-65 in 5th.
__________________
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>
El Presidente is offline   Reply With Quote
Old 05-24-2004, 04:03 PM   #13 (permalink)
You Can Has A Custom Title!!
 
Kevin325i's Avatar
 
Join Date: Mar 2004
Location: Madison, WI
Car:
Posts: 2,613
Photos:
Kevin325i is an unknown quantity at this point
Send a message via AIM to Kevin325i
PM Autotechnica, he did it with his car.

Kevin
__________________
Kevin (President TBEA)

&quot;WAAAAAAARRRRRIORS, come out to plaaaaay.&quot;
Kevin325i is offline   Reply With Quote
Old 05-24-2004, 04:32 PM   #14 (permalink)
Super Moderator
 
dutchbmw's Avatar
 
Join Date: Dec 2003
Location: SW Minnesota
Car:
Posts: 5,370
Photos:
dutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond reputedutchbmw has a reputation beyond repute
Send a message via AIM to dutchbmw
Your car becomes a more bad gas mileage when doing that swap. Is your only reason for doing that a faster acceleration?
__________________
BMW '96 M3 (SOLD)
June 2005 Car Of The Month!
Quote:
Originally Posted by Torque
I was just dropped off here by aliens one day. They got bored with me.
dutchbmw is offline   Reply With Quote
Old 05-24-2004, 05:01 PM   #15 (permalink)
Threadkiller
 
bitcore's Avatar
 
Join Date: Jan 2004
Location: High Point, NC
Car:
Posts: 2,907
Photos:
bitcore will become famous soon enoughbitcore will become famous soon enough
Send a message via ICQ to bitcore Send a message via AIM to bitcore Send a message via MSN to bitcore
Hey kevin, what does a 98 323is auto fall under? 325?
__________________

bitcore is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diff swap back Stoopha 3-Series (E36) 24 11-08-2005 10:42 AM
For those who were interested in my diff. swap Shudogg 3-Series (E36) 6 09-17-2005 02:15 PM
1992 325i Auto Looking To Swap Diff BUSTaMOVE 3-Series (E36) 1 12-08-2004 09:22 PM
Diff Swap Question... Anyone Know?!?! DIRTY E30 3-Series (E21, E30) 4 11-09-2004 09:54 PM
I may have solved the ellusive 318 diff swap thekid 3-Series (E36) 0 06-22-2004 12:45 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 03:51 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.