SaturnFans.com
what's new (beta) - classifieds - forums - photos


Go Back   SaturnFans.com Forums > Models > Saturn Sky > Sky Tech
Register FAQ Members List Groups Calendar Chat Room Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
Old 06-09-2011, 06:12 PM   #1
Houston_Saint
New Member
Houston_Saint is on a distinguished road
 
Houston_Saint's Avatar
 
Join Date: Jun 2011
Location: NW Houston, Texas
Posts: 2

1997 SKY
Default Limited Slp Diffs - What and How

This from an old University buddy, who is now a Chief Engineer at Aston Martin Lagonda no less

Lets start with a normal "open" diff. I'm assuming you know that the basic function is to allow torque to be transmitted to the wheels whilst allowing them to rotate at different speeds. It's a bit difficult to explain how it does this without pictures (particularly as I is an engineer) but I'll give it a quick go! The torque comes into the diff on a pinion gear that engages onto a ring gear that is connected to a cage that contains a cluster of four bevel gears.......OK I give up have a look on Youtube!

The problem with this diff is that if one wheel has less grip that the other this wheel will spin and no torque will go to the wheel with grip. A LSD uses either clutches or a viscous liquid (you know that stuff you dig out of the ground) to limit how much one wheel spins with respect to the other by transmitting torque to the other wheel. The benefits depend on the type of car. In a 4x4 they make sure that if one wheel loses traction then torque goes to the other wheels and you stand a chance of getting out of the mud / sand / snow. In a performance rear wheel drive car the main advantage is giving traction during cornering. When you go round a corner the weight goes onto the outside wheels, if you then try to accelerate out of the corner the inside wheel is prone to spin. The LSD limits this spinning and pushes torque to the outside wheel that has more grip. The down side is that if you put too much torque through and the outside wheel spins as well and unless you are quick you disappear into the undergrowth!

REWARD EXCELLENCE!

Add to Houston_Saint's Reputation
Rate the quality of this post and help Houston_Saint reputation points. Click the reputation button near the bottom left corner of this message box. Thank you!
Houston_Saint is offline   Reply With Quote
SaturnFans.com Sponsored Links
Reply



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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
01 SC2 Limited edition on Autotrader John97sc S-Series General 7 12-26-2005 05:32 PM
Looking for an SC2 Limited... David Harleyson S-Series General 29 12-30-2004 04:17 AM
Limited Slip Differental playboyroy L-Series General 1 05-03-2004 08:43 PM
What is my car limited at? ProDarwin S-Series Mods 20 10-19-2002 07:33 PM
Not-So-Limited Limited Edition Coupe SpeedPlayer 97sl2 Ion General 10 08-01-2000 07:16 PM


All times are GMT -5. The time now is 06:36 AM.

Advanced Forum Search | Advanced Photo Search


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
SaturnFans.com. The Saturn Enthusiasts Site.