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front end question


TheMattMan
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Dunno, but a VLSD wouldn't do much good unless you're planning on baja racing.

 

Wikipedia -The viscous type is generally simpler, and relies on the properties of a dilatant fluid - that is, one which thickens when subjected to shear stress. 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. The greater the relative speed of the discs, the more resistance the fluid will put up to oppose this motion. 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.

 

Viscous LSDs are less efficient than mechanical types, that is, they "lose" some power. They do not stand up well to abuse. In particular, any sustained load which overheats the silicone results in sudden permanent loss of the LSD effect.[4] They do have the virtue of failing gracefully, reverting to semi-open differential behaviour. Typically a visco-differential that has covered 60,000 miles or more will be functioning largely as an open differential; this is a known weakness of the original Eunos Roadster 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 and when the differential's behaviour deteriorates, the VLSD centre is replaced.

 

A VLSD works well for the drift crowd, but doesn't work for slow stuff like off-roading. What you want is a clutch type LSD from Nismo, 4x4parts.com or luck out and find one from an 87-89 turbo 300z. Any way you go, plan on a $400-$500 part bill.

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well im pretty sure you can put thicker oil in them maybe that would help it lock easier. but i think having a vlsd in is better than having an opn dif right? i have one just laying in the garage thats why im asking

Edited by TheMattMan
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