Post by
Gsedan35 »
https://forums.nicoclub.com/gsedan35-u15650.html
Sun May 15, 2005 5:05 pm
Let me add some things to the conversation.
Cusco MZ is the same as the Nismo LSD which street's for around $925However,...........when you open the box, base model Z owners get a big bonus inside the Nismo box that you do not get with the Cusco. Required LSD stub axles, saving you an additional $300 expense.
Below is a cut and paste from a post I found not to long ago, main thing I want to bring up is the Cusco RS diff.
Cusco LSD's are offered in two configurations, Type MZ and Type RS.
Type MZ works by having the initial torque created by the cone plates.These tend to be a bit more "mechanical" in their engagement feel.
The Type RS is a low initial torque type using RS springs. With the Type RS, the initial torque is absorbed by the RS springs therefore the initial torque comes on gently compared to the Type MZ which comes on stronger as it uses cone plates and response of the LSD is better, as the friction is lower.
Cusco LSD's for the 350Z are internally adjustable from 1.5 way to 2 way to suit every driving condition. In 1.5 way mode, the LSD activates under acceleration. Understeer is less than on the 2 way LSD. Recommended for drivers having difficulty with 2 way LSD understeer, or for those not wanting to setup for drift use.
The two way LSD activates on both acceleration and deceleration. Recommended for those who prefer hot driving action and big angle drift.
Both MZ and RS Type LSD' use Cusco's "MZ Differential Plates". CUSCO's MZ plate grooves are cut radially enabling instant oil movement, enabling improved efficiency and durability. The MZ plate surface is polished for an even contact with the pressure rings. Also, CUSCO's Oil Through System enhances the efficiency performance.
Highly resistant parts with extreme efficient manufactured.CUSCO's Oil Through System was possible by using high quality chrome molybdenium steel. The internal side gears and pinion gears used are precise forged parts that enable compact yet durable gears that are able to cope with high horsepower applications. This in turn increases the internal oil capacity as well as the number of MZ clutch plates taking the load off each plate for further durability.
CUSCO's unique Oil Through System enables better oil flow inside the LSD for better efficiency. The casing made from CUSCO's unique technology allows the oil to flow from the wide end to the pressure rings and the MZ clutch plate for efficient lubrication. Making the LSD more stable and durable! This was only possible with CUSCO's unique technology in manufacturing chrome molybdenium steel casings and gears that enabled a higher level of durability and a better flow of oil due to the large oil openings."
[end cut & paste]
On the oem VLSD,.......well it's better then nothing. It does serve a purpose of limiting slip off the line. But it function's by allowing slip to occur before is tries to lock up the spining wheel. It also has a limitation to how much force it can apply and keep the offending wheel from spinning. Add more power or stickier tires and the viscous goo doesn't alway's win and do it's job. When clutch type's have more that it asked of them from stickier tires or more power, they simply grip their internal clutch plates that much harder.