Custom Diff

[James]

I work at a boat builders... Mind you we build aluminium boats. What were you thinking of?

[Hyperblade]

I just know they tend to have that sort of stuff.

E.g. Stark Bros here in chch.

Just throwing ideas in here. How much of the stuff are you wanting?

[James]

dont need F.A of it ay, 0.5 m^2 would be heaps to start with. You can get things like boiler plate and wear plate from steel suppliers but most of them start at 6-10mm

[Hyperblade]

Yeah talked to dad about it, if you can't get it up there its unlikely we can get it here.

[James]

To be honest I havn't tried all that hard yet, mainly just googling. Have a look by all means.

[James]

Hello All,

Firstly a big thanks to Alex for letting me pull his diff apart, I think we both learnt a lot!

It is supposedly a Mugen 2-way clutch type LSD for a Honda City ga2. I have a sneaking suspicion it was originally for another car and has been modified to fit a city (possibly T2), perhaps it was originally a ZC LSD. I am also not sure if its a mugen one or not, it looks like a cusco to me from the designs on the friciton plates. (also has no part numbers or anything anywhere).

Anyway, let the photos speak for themselves.




Halves apart.



Shims to obtain the correct itinital torque setting.



Disc spring from the side.



One of the friction plates that are coupled to the housing.



One of the friction plates that are coupled to the output spider gear.



Side on friciton plate.



Output spider inner.



Output spider outer.



Pressure ring inner.




Pressure ring outer.



Pinions.










Disc spring OD.



Disc spring spring height.



Friction plate.





Stack.



Preload.

I have more pics and high res if anyone wants them

OK so after looking at this one I have decided to go for 1.6mm thick friction plates, I am probably going to make them out of mild steel and get them nitrided or carbo-nitrided to harden up the surfaces. I will try and get some large disc spring washers to use as springs in the system.

If anyone has any heat treatment hookups then let me know!!

[3GCVC]

im happy to help out if it gets this project going, keep on with the updates

[si]

So it's from a GA2 city? Cusco still list a part number for the GA2 City LSD; HERE

[James]

Thats interesting stuff there, it seems they make their diff's in a modular way. I found the parts listings for the friction plates and pressure rings and they are the same for all of the 1600cc or less fwd cars pretty much.

Alex: Maybe you can get a 1 way or 1.5 way pressure ring set for your diff.

I might also be able to buy a set of friction plates, I will find some part numbers and email an agent.

[3GCVC]

let me know if you find a place to buy the 1.5 way pressure ring i would rather buy one straight up instead of modifying the other one.

[James]

supposedly mazdaspeed are the NZ agents but it sounds like they are a bit of a rip. I also read somewhere that cusco japan will ship to NZ, so might be worth firing them an email.

[James]

Some recent research has led me to believe this may not be nescessary, I think its going to be fairly simple to modify an LSD from a later D series honda. I am going to try and get hold of one and see.

[ProT]

Would one of the Civic kits fit a City?

http://www.importperformanceparts.net/i ... honda.html

Purchase price looks cheaper than directly from http://www.phantomgrip.com

Postage may be the killer.

[James]

Wouldn't touch a phantomgrip with a barge pole personally...

I have a few LSD leads to follow up when I get back into it this year.