Anyone interested in a differential upgrade should check out this thread on g35driver.com... well interested enough to spend maybe twice as much as the Nismo LSD.

Quaife LSD

 

wow, this should be great

quaife makes good stuff from what i've read.

 

Damn!!! I wanted the Quaife 3 months ago and they said they would not be making one for the 350Z in the forseeable future.
Because of that I went with the KAAZ. Don't get me wrong it's a great diff just not the greatest for daily driving in the city.

 

If you are taking downpayments for the first batch, PM me. I will definately buy these if Quaife is going to make a set. Please keep us informed on the progress of the project.

 

I'm in the market, keep us updated.

 

i'm interested. lemme know about downpayment. heard a lot of good things about quaife.

but i need some clarification. their website says the quaife is gear operated w/o friction plates, so no wierd clunks at slow speeds i'm guessing. whats the advantage of gear operated? someone enlighten me. thanks

 

you mentioned several of them in your post, actually.

the advantages are:

- no friction plates.
- no weird clunks at slow speeds.
- no consumable items, except gear fluid.

 

i guess those advantages but with the same peformance is a winner. so would the quaife be similar to a 2-way clutchtype lsd? ie. always on?

i've also sent an email to quaife to express interest. maybe others should do the same who are serious about buying.

 

Fellas, so far this is only an interest pool and no payments are being taken yet. Hell, we don't even know if Quaife will even make them. We just need to wait and hope that andyranck gets that stock 350z vlsd and sends it in to Quaife. The next step would be to hear back from Quaife with either a "Yes, we can do it" or a "Ain't gonna happen" reply. If they say yes then we would need to get a total of at least 30 people to put in a 50% deposit for them to do a production run. So cross your fingers and hope andyranck got that vlsd and sends it into Quaife.

 

The Quaife is torque sensing so it does not do anything to help traction in situations such as snow or drag situations where both tires are spinning as it only transfers power/torque, it does not lock the dif like a clutch type. Also, it is only 1 way. It is not a very good track dif IMO. It is quiet but then again so is the ATS carbon dif with all the advantages of the Kaaz. ATS carbon should be available soon for 350Z. I know they are working on it but were waiting on the new GTR to try to make one that would fit both. Since the GTR is delayed they are now developing the 350Z only model. TO each their own but there's a reason all the aftermarket Japanese LSD's are clutch type.

 

Exactly right Dan.

While teh Quaife's are quiet (frankly so is a properly setup NISMO or Cusco, Kaza always tends to be a bit on the loud side for some reason in my experience), the Quaife is not a good diff for track or autocross use at all for the reasons Dan mentions above.

I know I ahve owned diffs from every major manufactuer at this point on my various cars, and have never had a clutch type go bad yet...hekc, my other Z puts down close to 600 hp at the wheels and I have not touched the LSD in that car 9clutch type) since I installed in 4 years ago!

 

So let's see... the Quaiffe is no good for 'snow or drags' and it's "not a good diff for track or autocross use at all." Well, what IS it good for?

In point of fact, they are widely used in road-racing both here and in Europe. Many autocrossers prefer them, as well. Their principle disadvantage is that they are not 'tunable;' but for a combination of effectiveness in varying conditions, consistent performance, low-maintenance and quiet operation, I don't think they can be beat. The American company, Torsen, offers a couple of different 'torque-split' ratios (equivalent to % slip in clutch-style diff lingo) for a few Detroit-mobiles. Perhaps one day we'll have that option as well.

 

OK, I'm confused with this. I thought the Nismo and cusco's diffs were torques sensing? If not, then what makes them engage? Spin? If so, I thought that the stock VLSD did that?

As for the quaif, if it's not clutch type, what is it?

Also, please explain how each would help on track, if diff cooler needed, and what does 1.5 and 2way adjust mean and what the diff between the two.

Thanks.

 

I strongly disagree. Quaife is one of the best, if not the best LSD for the road racing and autocross. I've used one in my road race car for years and nothing beats it.

For those that don't know how a quaife works, its a gear type LSD that uses an arrangement of gears to transfer torque from one wheel to another if they are spinning at different speeds. Another great thing is they never wear out and have a lifetime warranty, even for racing.

Spend some time on a road racing forum and as some people what they think of Quaife