Difference in LSD's
#1
Senior Member
Posts like a Northstar
Thread Starter
Join Date: Aug 2003
Location: Buffalo Grove, IL
Posts: 666
Likes: 0
Received 0 Likes
on
0 Posts
Difference in LSD'*
Just wondering if anyone can explain the difference between a helical LSD, and a Viscous one. I know that Viscous is supposedly better, and can handle more HP, but why?
#2
Senior Member
True Car Nut
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Likes: 0
Received 0 Likes
on
0 Posts
The viscous lsd has two sets of plates inside a sealed housing that is filled with a thick fluid. One set of plates is connected to each output shaft. Under normal conditions, both sets of plates and the viscous fluid spin at the same speed. When one set of wheels tries to spin faster, the set of plates corresponding to those wheels spins faster than the other. The viscous fluid, stuck between the plates, tries to catch up with the faster disks, dragging the slower disks along. This transfers more torque to the slower moving wheels -- the wheels that are not slipping.
A helical lsd has all of the same components as an open differential, but it adds a spring pack and a set of clutches.
The reason most people do not have the viscous lsd is cost
A helical lsd has all of the same components as an open differential, but it adds a spring pack and a set of clutches.
The reason most people do not have the viscous lsd is cost
#3
Senior Member
Certified GM nut
Join Date: Feb 2004
Posts: 1,631
Likes: 0
Received 0 Likes
on
0 Posts
Wow that is very interesting! I wish I understood one word u said! But the jist of it is, I want the vis,...something or other if I ever upgade my LSD! I was looking at LSD at DP! Would be a nice purchase.
#4
Senior Member
Certified Car Nut
Originally Posted by 94 SSE with Sizzle
Wow that is very interesting! I wish I understood one word u said! But the jist of it is, I want the vis,...something or other if I ever upgade my LSD! I was looking at LSD at DP! Would be a nice purchase.
#5
Senior Member
Certified GM nut
Join Date: Feb 2004
Posts: 1,631
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by BonneMeMN
Originally Posted by 94 SSE with Sizzle
Wow that is very interesting! I wish I understood one word u said! But the jist of it is, I want the vis,...something or other if I ever upgade my LSD! I was looking at LSD at DP! Would be a nice purchase.
Thread
Thread Starter
Forum
Replies
Last Post