lsd?

[Malovan]

Hey, i know this might not be the forum to ask this but you all have more knowlege than I so i thought i'd give it a shot.

Ive got a cordia with the jap spec vr4 conversion and I was wondering what would it take to get it lsd'd? I heard there is a donor car that could make it quite easy for it to do but I dont know which one it is.

It's a defintite future thought and I wish to get it done late this year. Do any of you know anything about this sortof thing?

I do understand that it could cost up to $1800 to get this done, but im not selling my car anytime soon. Just think of the 60ft times! Almost like you guys lol :lol:

Any other info greatly appreciated.
Cheers,
Nick

 

[bazeng]

you can go aftermarket, get a KAZAA mechanical lsd ..
they range from around 1200 - 2500
depending on what you want..

if you want more info, let me know and ill give you a number.

 

[Entaran]

I can't remember who does em in melb, but you can get a large number of diff lsds for them. Most are Mechanical I believe but some clutch types. Clutch LSD's should be avoided for street driving (massive understeer usually).

It can DEFINATELY be done. But you'd be better off asking on cordiapower.com or PM Wyda.

 

[CLuTZ]

isnt mechanical LSD a clutch type LSD?

 

[Entaran]

oops.... The three types are Mechanical (clutch), Viscous and Torsen... you can't get torsen for the front tho I don't think.

 

[GTi-R]

The torsen diff would be the best for the front, cost about 1500 to be made up from memory, a crowd in melbourne does them, they work opposite to a open diff, instead of putting power to the easiest wheel, they put power to hardest wheel to turn, so on a AWD car, it would always be the outside wheel when cornering.

nearly elimates understeer on a pulsar.

 

[Malovan]

Whats the main difference between a viscous diff and a torsen diff? Whats easier to install and which is the least/most expensive.

Yeah I was thinking I would be spending up to $1800.

I shall look into it deeper late this year. As I do not have to money atm to perform this operation.

Thanks to all with the information. It will give me a good basis to start looking around.

Cheers,
Nick

 

[GTi-R]

a torsion diff doesn't lock up, it stays open, but transfers the power to the hardest wheel to turn,

viscous diff work with fluid. it locks up so both wheels spin at the same time

 

[Entaran]

Torsen (Torque Sensing) diff's lockup.

They convert power from the inside to the outside wheel, then if they have to, they then redirect power to both. Torsens are both the most expensive and the easiest to break. They also cost the most to buy and repair but are completely maintenance free (past usual tranny fluid change) and work among the best for street use.

If you're planning to race, a properly pre-loaded mechanical (clutch) lsd is best. But these things wear out every 30-50k kms.

 

[Malovan]

So for my application, (just general street use, occasional hill climb/track day). You say a torsen diff is the best. Ive only about 160fwkw so the torsen diff would easily stand up to that in general street use yeah?

How much cheaper are viscous diff's and how hardy are they for my kind of application? Would they be as good for my kind of application?

Thanks guys, keep the information coming, you're all a great help.

Cheers,
Nick

 

[Entaran]

Viscous diff will stand up to more. It's more understeery into corners tho (needless to say it'll still be a million times better than open wheeling in a cordia!!!!). It'll feel better in any case.

In my experience, torsen diffs are lame when it comes to ability to hold power. We had a custom torsen setup (overengineereed) in one of our SAE race cars and at 184 proven RWKW on 32 psi of boost, it SHATTERED the diff I believe 4 times before they finally got the setup right.

Spider gears in torsen diffs are -very- fragile. Ask any supra owner.

 

[bazeng]

i have a viscous rear..
dont know much about them at all..

as for front.. its open..

and all i know is that in gt4, 2way lsd is what i buy..
dont ask me why.. it just is..

 

[Entaran]

2 way LSD's are SHIT for street driving.

Even 1.5 ways are deadly in FWD's.

1 way or open is pretty much how you want to go. If the LSD locks up in a fwd under deceleration (even half-lockup) it's like trying to turn a bus on ice at 60 kmh.

 

[Malovan]

Is viscous cheaper to install on fwd than torsion? And will a viscous diff have less or equal understeer to my normal cordia diff?

 

[Entaran]

Should be cheaper. They are about 5 times easier to manufacture.

And yes, less understeer until you punch it coming out of a roundabout, then it's understeer heaven. But you gotta take the good with the bad!

 

[Velocity Racing]

hey baz, hows that viscous feel in the back of yours? im lookin at gettin one..? any other imput from ne one?

 

[bazeng]

i wish i could tell ya!!

cars got no engine

 

[Velocity Racing]

hahha lol..

well if all goes 2 plan i should have one in tomorow... so ill tell u

 

[jett]

Where would I get a viscous front LSD from - are there off the shelf items or do i have to get one made up...

Would the viscous LSD from a GSR box fit the 1.8L (4G93) n/a FWD box??

 

[bazeng]

just updating the post

i have fully run in my kaaz front 1.5 way lsd, and just some feedback

1. RUN IN
took about 500km's
it was very noisy, lots of clicks, lots of feedback through the steering wheel,
clicked only when turning though (almost sounded like the CV joint was stuffed but multiply that by 10)

i used some mineral oil (not the kaaz oil), but some cheaper fusch 75-90 lsd oil..

to overcome the clicking, i had to do about 30 minutes of FIGURE 8's...
and then dropped the oil and filled it up with the kaaz oil (2.7L)

once this was done, no noise.. perfect!!!

it grips into corners like its on rails!!.. seriously!..

any FWD with power MUST HAVE AN LSD!!!!

btw, hows your knee MALOVAN?!?