LSD Question

[woper]

Hi,

Do You have any experience with Cusco LSD?
Which type do You recommend? MZ or RS?
As Cusco says - RS has low initial torque because of special absorbing springs. MZ uses cone plates. Has a better response and comes stronger.

UR opinion wanted...

[robokill]

for drifting ? get a simpel trd 2 way diff and your done

[Abe]

I have a Cusco 1,5 ways type rs in my car and a friend have a 2ways MZ in her sw20.... RS is more soft in the inital work, but is more noisy, whe are working are the same...

Regards!

[woper]

thanks for advices...I think that RS is better option for N/A 86...

Cheers!

[zounds]

Hey, can anybody explain me what MZ or RS is?

[Abe]

the best explain is here:

http://www.cusco.co.jp/english/e_lsd.html

Regards

[assassin10000]

zounds Wrote:Hey, can anybody explain me what MZ or RS is?

MZ = harsh engagement - will disengage if no torque is applied

RS = softer engagement - always lightly engaged.

The MZ design is such that as soon as you apply torque/power the plates are creating friction and causing the amount of slippage between the two axles to become less and less with the more torque/power applied. When you are off throttle there is little to NO lsd lock/grip action. The MZ is more of an on/off instant change in traction.

The RS design is always engaged, even off throttle in parking lot manuevers. The springs allow the clutch plates to always have a small amount of engagement so it's not an abrubt change midcorner/throttle control. Much smoother to drive and supposedly better for both grip and drift as it allows smoother footwork/throttle control with less chance of upsetting the balance of the car through abrubt changes in rear traction mid corner/drift (at least from what I gather.)

Both the MZ & the RS use the same clutchplates - overall amount of lock/grip should be equal at full engagment.


I have a 2way RS and I am very happy with it in my ae86. It's quiet, smooth and very good engagement when I apply power.

Note: the only reason an RS would be more noisy than an MZ would have to do with the fluid & amount of friction modifier in the diff. The ONLY time my RS made noise is when I put fluid in without lsd additive/friction modifier. Only backed out of the driveway before I realized I needed to put some in or change the fluid.

Since then I've experimented with different fluids (valvoline, redline, amsoil, mobil1 & lastly Motul) and I find the best fluid with the proper (IMHO) amount of modifier already added is Motul PA90 gear oil. No noise & great engagment with plenty of protection.

Andrew

[Abe]

I have 1,5 way RS and make a lot of noise when turn and It isn´t engagend.... make a clack clack.... may be my LSD is to much new.... but I know other Cusco whit this noise and have a lot of Km.... is a poltergueist But my LSD work fine, no problems.

I had motul 90pa in the correct level!

Regards

[assassin10000]

Abe Wrote:I have 1,5 way RS and make a lot of noise when turn and It isn´t engagend.... make a clack clack.... may be my LSD is to much new.... but I know other Cusco whit this noise and have a lot of Km.... is a poltergueist But my LSD work fine, no problems.

I had motul 90pa in the correct level!

Regards

Really? Thats weird.

If it's brand new did you do the correct break-in by doing figure eights in a parking lot for 30-40minutes? Then changing the fluid?

Andrew

[Abe]

yes of course, i had 50 mins break in, and 800km with low gas in turns change de first fluid whit 300km second fluid whit 2500km third at 8000km and now have 3000km more.... My lsd had 11000km aproximate..... I know more LSD whit the same noise, this is no problem... It work fine really..... only makes noise when starts to engage, turn and whit low gas.... (parking for example).

Regards