LSD types?

[merc-blue]

G'days
It has become time to get a LSD,
What type is best 1 or 2 way,
i have read on how a 1 way only locks uner power while a 2 way unber braking and power, but is there any distinction which is nessicaraly better?
as far as i can tell a good 1way would be better for track work as it would allow more stability under braking and turning in and then lockup both as soon as you put the power down

Cheers
Rohan

[Screamn_Sleeka]

Before anyone give u there opinion, or even flames you...

First look what is a available for your diff, and what you are willing to spend.
Then just google "LSD explanation" or something, and ull find heaps, wikipedia will probably have some good stuff too. You will just get people opinions and misinformed ideas on a public forum.

EDIT: and then tell us what you find?

[merc-blue]

mate, i have googled,
but i only came up with facts of the different styles and types which was really handy but now im asking for opinions from people who have driven LSDs to as what they prefer and why

[RONA]

mate, i have googled,
but i only came up with facts of the different styles and types which was really handy but now im asking for opinions from people who have driven LSDs to as what they prefer and why

What is the car going to be used for because that generally determines the ideal or best diff for that application.

There is no 1 best diff different styles of LSD have pro and cons in various situations.

[merc-blue]

its a street/track car
mostly just sprints hillclimbs tarmc rally at the moment it will be driven a few times a week but as son as i have space for another car it i wll be track only,
Cheers

[jezza323]

get a for a torsen (torque biasing) diff for track work

1 way / 2 way diffs are viscous and will wear out much faster than a torsen diff, torsen diffs send the torque to the wheel with the most traction, a viscous diff will just locked the diff when slipping starts

if u wanna drift lock it or get a viscous diff

[RONA]

if u wanna drift lock it or get a viscous diff

um no, to drift you want a 1.5 way or 2 way mechanical LSD.

[merc-blue]

ahh no i dont want to drift, i want to go around corners the fast way

[crostek]

its a street/track car
mostly just sprints hillclimbs tarmc rally at the moment it will be driven a few times a week but as son as i have space for another car it i wll be track only,
Cheers

Depends on your driving style but i run a mechanical diff lock (Detroit style) 2way.
it gives good traction, but if you get to out of shape and lift of the gas it becomes open and makes it easy to recover from unlike LSD, also you don’t have to replace bits that wear parts like clutch plates, also you don’t wear down you tyres when taking tight corners (rounder-bout’s).

[RONA]

Depends on your driving style but i run a mechanical diff lock (Detroit style) 2way.
it gives good traction, but if you get to out of shape and lift of the gas it becomes open and makes it easy to recover from unlike LSD, also you don’t have to replace bits that wear parts like clutch plates, also you don’t wear down you tyres when taking tight corners (rounder-bout’s).

Thats a torsen type LSD.

[TheStitt]

Torsens are a good diff, the True Traks are and avaliable for toyota G and F series diffs.

I find mine locks up quite quickly and it will never wear.

Stitt

[jonra23]

You will just get people opinions and misinformed ideas on a public forum.

Which is what Rohan was asking for, I guess he will then temper those opinions by his opinions of the people giving the advice.

For a road/track car i would suggest either a 1 way Clutch unit or a torsen/detroit unit.

The main differences I see with the two styles is clutch units are prone to wearing and require adjustment over time, detroit units engage a lot more positively/agresively and can be a little interesting if not used to them on wet roundabouts etc.

regards
jon

[lojik]

I've not driven other types of LSD's, so here is my misinformed opinion. I have a true-trac in my ma61. Its easy to live with on the street, even in the wet. And still does the job when I wanna play silly buggers
From what I've read online they are pretty good in comparison to other LSD's.
The Torsen gets my vote.

[styler]

***LSD***

limited slip differential

well there are 2 aspects:

1.the type of diff
2. the way they act

1. the types of diff

MECHANICAL :

- clutch type
- gear type
- cone type
- detroit
- torsen
- probably other individual designs from specialist companies

all these different mechanical designs have their own system
that has its features and weaknesses. detriot and torsen have their own special system as far as i know.

VISCOUS DIFF:

- liquid, probably a few different designs fom different companies

2. the way they act -


1 way - locks on acceleration


2 way - locks on acceleration and deceleration


1.5 way - locks on acceleration and locks less on deceleration


***SPOOLS***

replace moving parts of the diff with solid parts so the diff becomes locked, both types lock the diff but the full spool is stronger and lighter.

MINI SPOOL - a mini spool replaces the spider gears inside the carrier

FULL SPOOL - a full spool replaces the ring-gear carrier

spools are used to lock the diff and also save rotating mass but are for not for street use.


***LOCKER***

a setup that allows the diff to lock and unlock through a system

AIR LOCKER - uses an air system to lock the diff, common aftermarket for 4WD

MECHANICAL locker system - uses a mechanical system to lock the diff, common on most older 4WD

ELECTRIC locker - activated by a switch, uses mechanical locking system, found on some newer 4WD


***A WELD LOCKED DIFF/WELDED LOCKER***

weld up the diff gears so they are locked, not for street use.
common on some cars as a cheap method of locking the diff permanently.


***MIRACLE PRODUCTS***

phantom grip and some companies claim to have found a way
to make a normal diff have a lsd action with their product installed,
i havent looked into it much and its expensive.


***ALSO***

often people say they have a locker or locked diff meaning its been welded up and not that its a locker system or spool.

feel free to add / correct anything i have put up and im not an expert on the torsen or detriot or know much about them other than they have their own system, so they may have to be edited to suit.

[TurboRA28]

If anyone has the book 21st century performance there was a good chapter in there about the main types of LSD - clutch, torsen & viscous.

IMHO go torsen, doesn't wear out for one thing. i use it the car mainly for circuit days, hillclimbs, etc and its awesome.