I'm sure many of you have done this? What does it consist of? Is it as simple as changing clutch packs? I'm not very educated in this area and hoping its relatively a cheap task. I want to buy a turbo kit for my car and cant have 1 tire spinning all the time. I need to be able to get a good launch off the line.

Guys got an suggestion on the best/cheapest way to do this?

 

Cheap task? Not really. You will need to change out your spider gears for a LSD unit. Essentially changing the guts. The cheapest way would be to pick up a used VLSD unit off a non-base 350z.

 

any idea of prices for that kinda stuff? What would I look for on say car-part.com? 350z LSD unit?

 

plan to drop a G on the project.

 

a G doesn't help me find what im looking for.

What do I look for as in parts? maybe I can find someone parting out a car or something on the forum. I look for a LSD rear diff?

 

First off, define "relatively cheap". There are guys around these forums that have invested over $50k in their cars.

Second, there are *tons* of aftermarket differentials. However since you have the base, you'll need the output shafts from a VLSD model which will run you about $300 new from Nissan. This is in addition to any aftermarket differential you find, including the VLSD models. If you'd like to do it for the lowest price, you can either go with the Quaife differential or the new Nismo imported from Japan. Both will run you about 1.5k after shipping.

Third, if you're not that knowledgeable in this area, you'll want to find someone to install it for you. That will run you about $3-400 if I remember what others have said correctly.

While the cheapest way is most likely to find a used VLSD, I've heard that there's a world of difference between that and the aftermarket diffs (I have a base, I wouldn't know) and that the extra 1k is worth it.

This is just information I've gathered around the forums and I am presenting to you. Note the "I gathered around the forums" part...lol. I hope you're also aware that a new turbo kit is 5k+ not installed.

Side note -> "best" and "cheapest" don't often go together.


Edit: The Quaife does not need the output shafts and to my understanding the Nismo comes with them.

 

Thanks for the help. Just trying to see if its worth it to get a turbo kit with limited money. Looks like its running into to much money. Might have to stick with a cool looking car thats not very fast lol.

 

first off i'm not trying to be a d!ck here, it's just the internet
going FI with limited money is a no no, turbo kits are not cheap. do not cut coners when going FI. also do not go with the ebay no name kits. if you do cheap out you will be paying for it in repairs. there are people on this board that put in the time and money into building up there motors, and still go pop. FI is fun but it gets very expensive (more than a fan of 20$ bills )

As far as base to LSD, Quaife can drop right in. i know Z1 sells a kit that has everything you need to convert it. then you can get any LSD made for the Z's that come with the VLSD. i did this, since i wanted the a 1.5 diff.
Quaife will be the "cheap" way to go since it drops in. have a pro install it.

 

Nothing "drops in." Any aftermarket LSD must be properly shimmed. As a minimum, you need a dial gauge with a magnetic base and some gear marking compound. Shims cost about $40 a pair and range from 2.00 to 2.65 mm in 0.05 mm increments.

 

The Quaife unit is not a "posi" (from the thread title). That may matter to NitroViper.

Asterix

 

Just put a Quaife.Drop, especific for base in with no modifications, mechanical no clutches to change, quiet operation.

 

Posi-traction is a term from the 60s. The Quaife is better than a "posi" in every way.

 

NitroViper:

http://www.z1auto.com/prodmore.asp?m...ne&prodid=2349

 

This is good to know. Are there any aftermarket VLSDs that don't run quiet? I'm interested in either picking up a stock 3.3 VLSD pumpkin or converting my open diff to VLSD but want quiet operation.

I ended up selling a 3.5 VLSD diff last spring bc it was whinning at 60MPH and had to have my 3.3 open diff reinstalled (not fun)

I'd like to avoid going through that experience again

 

VLSD – is oil based limited slip. It depends on the ability of the oil to sustain viscosity and then traction. These have a limited life span and eventually act like an open diff.(also on a track after a while and temp rises acts like and open diff.)
Quayfe – is mechanical LSD not dependant of clutches or oil viscosity. It should last for very long time no special maintenance, no noise.

I decided to pick this one and never look back.

 

ATS also offers LSDs for the z base model which do not require changing the side shafts.

 

Overall, neither is superior to the other. They act differently in certain situations. Each has advantages and disadvantages.

Asterix

 

^^^+1 on the disadvantages and advantages of each..

Quaife LSD FTW!

EASY plug and play install (for a BASE)

 

I installed a Quaife and 3.9 gears at the same time couldn't be happier.