Been in the honda game for years (turbo b's, h2b, stroker h24's, etc etc etc), grew up and sold off all my honda stuff.
Wanted a 03/04 Cobra, 05/06 GTO, or any 350z/g35.
Got an 06 Base 350z.
Pretty happy with it so far... except for the peg leg diff.
I have searched, yea i know i can swap out the diff for a vlsd one. I have seen them as low as 150$ locally up to 400$.
I am not going to track this car, it will never be a candidate for FI. I just want to be able to wag the azz end out occasionally.

In my research, i have come across a post stating their OEM VLSD goes peg leg often, and that with the higher milage the car accrues, the more it becomes open.
This was just single post in thread about aftermarket LSD.
So, before I spend a few bucks and a couple hours of my time is this a common occurrence with the oem lsd?
I have no need to drop 1500$ on a aftermarket LSD, as it would be pointless for me.

Thanks

Ben

 

VLSDs will ALL Eventually fail. Mileage and Abuse are the only way to determine life. I went this route since I got EVERYTHING and installed for $200. Too much more and you're wasting your time.

 

I picked up a OEM VLSD from a '06 Z with less than 40k miles for $269 (Local pickup in Houston,Tx) Installed the whiteline urethane diff bushing then made the swap and it works great. I'm not going to spend $1,500 on a LSD until I do a engine swap in my Z (LS2 or RB26dett). Leaning towards the LS2 since the GF's dad is a big LS tuner and could majorly assist me with the build.

 

Does your gf have a sister? worth a shot!

I want to get 4.08 gears, but I want to save for a 1.5 way at the same time. too much to want, not enough to pay.

 

Well you could do it now, learn how the car reacts with it, than do your engine swap, to space out the spending that is

 

She does! BUT......she's 11 hahaha.

This is true but i personally wouldn't want to put any wear and tear on a new diff prior to the engine swap. I feel the LS2 will put enough wear on it already lol

 

can someone tell us exactly what the vlsd is? i know its not a real lsd like the nismo or other aftermarket units. so im guessing is just cuts some power to the power side or some bs like that. what's the difference between a nismo/cusco/ os. and and a vlsd?

btw, im very familiar with american lsd's, open dif's, and lockers and ive built a few ford 9"s with different difs so what gives?. im comfused by the prices of true nissan lsd's. ex. silverado/camaro true lsd is about 250$.

 

Straight from the wiki peeedia. Basically it "Reacts" to slip instead of being proactive like Locking Diffs. This is my understanding of it anyway.

The viscous type is generally simpler because it relies on hydrodynamic friction from fluids with high viscosity. Silicone-based oils are often used. Here, a cylindrical chamber of fluid filled with a stack of perforated discs rotates with the normal motion of the output shafts. The inside surface of the chamber is coupled to one of the driveshafts, and the outside coupled to the differential carrier. Half of the discs are connected to the inner, the other half to the outer, alternating inner/outer in the stack. Differential motion forces the interleaved discs to move through the fluid against each other. In some viscous couplings when speed is maintained the fluid will accumulate heat due to friction. This heat will cause the fluid to expand, and expand the coupler causing the discs to be pulled together resulting in a non-viscous plate to plate friction and a dramatic drop in speed difference. This is known as the hump phenomenon and it allows the side of the coupler to gently lock. In contrast to the mechanical type, the limiting action is much softer and more proportional to the slip, and so is easier to cope with for the average driver. New Process Gear used a viscous coupling of the Ferguson style in several of their transfer cases including those used in the AMC Eagle.

Viscous LSDs are less efficient than mechanical types, that is, they "lose" some power. In particular, any sustained load which overheats the silicone results in sudden permanent loss of the differential effect.[6] They do have the virtue of failing gracefully, reverting to semi-open differential behavior. Typically a visco-differential that has covered 60,000 miles (97,000 km) or more will be functioning largely as an open differential;[citation needed] this is a known weakness of the original Mazda MX-5 (a.k.a. Miata) sports car. The silicone oil is factory sealed in a separate chamber from the gear oil surrounding the rest of the differential. This is not serviceable; when the differential's behavior deteriorates, the VLSD center must be replaced.

 

Get that OS Giken diff and you wont have to worry about a thing