R3VLimited Forums

Go Back   R3VLimited Forums > E30 Technical Forums > Engine & Drivetrain > Transmission & Driveline

Reply
 
Thread Tools
Old 09-14-2017, 09:14 PM   #1
AC_Schnitzel
Member
 
Join Date: Sep 2017
Location: Campbell, CA
Posts: 58
How can I tell the gear ratio of my LSD?

My 88 super eta came w/ an optional LSD as stated by the VIN and also on the original import documents.

The decoded VIN says Limited Slip Differential (25%).

Any thoughts?
__________________
JP
WTB: 2.7i swap parts, 5 speed swap, plastic bumpers, etc

Current
88 325 super eta
00 528i/5
02 530iA sport

Former
04 525iA sport
87 325is
91 325i
97 528i
AC_Schnitzel is offline   Reply With Quote
Old 09-14-2017, 09:24 PM   #2
e30davie
Grease Monkey
 
Join Date: Apr 2016
Location: Australia
Posts: 397
stick your head under the car and look for a little metal tag on the differential itself.

if you have an LSD there will be an "S" on the tag, followed by the ratio.

ie, S364 = 3.64:1 ratio with an LSD.

of course 1988 was 29yrs ago, so anything could be swapped in or out of the car.

Does it spin both wheels like an LSD?
e30davie is offline   Reply With Quote
Old 09-14-2017, 09:52 PM   #3
reelizmpro
R3V OG
 
reelizmpro's Avatar
 
Join Date: Dec 2003
Location: LA-SoCal
Posts: 8,253
IIRC, 2.93 was the stock gearing for the 88 325 super eta.
__________________
"I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

85 323i M TECH 1 - ALPINEWEISS/SCHWARZE
88 M3 - LACHSSILBER/SCHWARZE
89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
91 M TECHNIC TURBO - MACAUBLAU/M TECH CLOTH-LEATHER
reelizmpro is offline   Reply With Quote
Old 10-06-2017, 07:44 PM   #4
CrashandBurn
Noobie
 
CrashandBurn's Avatar
 
Join Date: Aug 2017
Location: Texas
Posts: 7
[IMG][/IMG]
CrashandBurn is offline   Reply With Quote
Old 10-06-2017, 08:07 PM   #5
88BlackS-ETA
Wrencher
 
88BlackS-ETA's Avatar
 
Join Date: Mar 2013
Location: PA
Posts: 226
Quote:
Originally Posted by reelizmpro View Post
IIRC, 2.93 was the stock gearing for the 88 325 super eta.
Thats what my super eta has, 2.93 LSD, behind the automatic transmission. Slow as balls..lol
__________________
88BlackS-ETA is offline   Reply With Quote
Reply

Thread Tools

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

Forum Jump


All times are GMT -7. The time now is 12:50 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC