whats the ebst choice for an LSD for the HR, I just bought a 2007 350z Base model. I was looking at the cuscos 1.5... any thoughts? It is my daily driver and will see some track days (autocross/road)
Thanks in advance

 

quaife is good. Cuscos are also good, so is the nismo. There is an abundance of choices. I personally like quaife.

 

I have the Nismo on mine. I daily drive the car, but you definitely can feel that there is a limited slip on the car. Some vibrations and clunking around slow turns. It was terrible though when I had the Redline Shockproof fluid in there. It was almost violent around slow turns, and it was soooooo loud. But with the Motul fluid, it's a fraction of how bad it used to be. So basically if you go Nismo, just buy the Motul LSD fluid and put it in right away. But the trade off for it's aggressive feeling, is that the car grips like crazy now. I have heard good things about the Quaife as well though, and I've heard it's less aggressive and noticeable around town.

 

Quaife is a great choice for a base model as it's a drop in. The problem is getting one (long waiting list). The NISMO is a cost effective unit as it comes with the parts needed to install it to a base, but, it's not very driver friendly, as it is loud, a bit clunky, and doesn't have the best street manners. The Cusco is a very nice unit as well, and is much more civil vs the NISMO, but is about the same price as the Quaife once the required install parts are factored in. Personally, I've used the Cusco in my own car since 2004, and it remains one of the best mods I've done to date. In fact, I'm about to build another rear for my car, and while we sell all of the above units, I chose to run another Cusco, as it's worked out so nicely

 

cusco here in the nismo (nismo Z) .. I'm running a little extreme 100% lock 1.5 way.. still good on the road.. a HUGE mistake I made was to don't install the spl solid diff bushings... I don't think you'll need those if you run a "soft" locking but.... well I'll put them on later.

 

dont mean to rob the thread....but what do you guys think about the carbonetics?

 

nice unit, very smoot and not intrusive, but needs frequent oil changes due to the carbon disks (every 3-5k miles), the oil is expensive since only certain kinds can be used in a carbon diff, and it's not adjustable.

 

hmm how do you install an LSD on the engine?

 

thanks......so nismo or cusco?...pm price please adam?

 

i have a cusco and i love it. i had a nismo in my 04 and it was a noisey mfer.

 

My nismo is noisy but it does the job great!

 

Love my Quaife.

 

I have the NISMO LSD in my base 07, and I think it's a must, after driving it without it for the 1st week.

Just as others have mentioned, the transition from unlocked to locked is quite harsh, even on the lowest setting, especially if you're used to driving a viscous type of LSD. For me, though, the durability, cost and availability of the NISMO LSD was the biggest factor in my decision to get it. I have no experience driving a Z with any other diff, so I can't give you a fair comparison.

As far as the clunky sound, it's pretty loud, mostly around tight, slow turns, and will feel as if something is wrong with your transmission. However, that is all solved by using Motul 90 PA limited slip diff oil. That oil made my NISMO diff totally different. It completely took away all the clunky ratchet noise. You can still feel the engagement, but the transition is much smoother.

Performance wise, the car just handles so much better around turns and on launches.

All in all, shop around to see which one works for you at what cost.

 

Dont forget to look into a CARBONETIC unit. Same concept as a cusco with it being a clutch type lsd but without the harsh engagement and noiseless operation. Also dont forget twice the locking power.

Quaife is also a great option if your not planning on doing any racing.

 

while it is another option, in this situation, it's less than ideal. It's not adjustable, and requires very frequent oil changes with very expensive oil. It does not have twice the locking power, as the Cusco offers adjustable lock, from 60%-100%, and adjustable LSD action from 1.5 to 2 way. The Carbonetics is fixed at 100% lock, and is not adjustable at all

 

what about os giken or tomei lsd's?.....i am also curious about what one to buy...

 

SMB350z.... join on in... lol got that exact same car/color too. Now I am just down to saving up the pennies to get this unit. man I wish I could just press the submit purchase button right now.

 

Kazz and Tomei LSD are the same, or I should say Kazz builds Tomei LSDs.

 

flame suit zipped up good and tight

i am new to diff's....from what i am reading the quaife is not a "normal" clutch style diff.


with the quaife can you spin both wheels, burnout style?....it's a dumb question, but i have to ask it.

 

yes