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quaife or carbonetics Limited slip diff????

Old 03-21-2011, 08:18 PM
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1z33
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Default quaife or carbonetics Limited slip diff????

i'm about to order a Limited slip and FD. i'm torn on which one to order. the quaife or the carbonetics.... i have a 03 with VLSD. i do take it to track days sometimes but street drive also.
can i get some opinions from people that have them.

thanks
Old 03-21-2011, 08:27 PM
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OS Giken is my choice.
Old 03-21-2011, 08:41 PM
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1z33
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Originally Posted by terrasmak
OS Giken is my choice.
are you running an OS? if so how is it for daily use? thanks
Old 03-21-2011, 08:52 PM
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Originally Posted by terrasmak
OS Giken is my choice.


hands down, os for sure...

If your a street driver and casual autoX guy then quaiffe will be quite and your gf wont bish...

if your into drifting and track a bit harder then the carbonetics is better suited...

os giken if your wanting the best for a bit more money, which is still nicely street driveable but performs much better by design.

-J
Old 03-21-2011, 09:01 PM
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1z33
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thanks for the input. i think i might check into the OS now
Old 03-21-2011, 09:04 PM
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Z350Maniac
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Jason, how much louder is the OS over the Quaife?

I don't mind a bit of noise, but if it's loud enough to be annoying...
Old 03-21-2011, 09:09 PM
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I have the cusco RS in my Z.....track only. Unbearable on the street at 80%. I have a pretty high tolerance for annoyances, but unless it has very fresh fluid it is noisy, clunky, and harsh. That said....I love it on track. My car gets at most 300mi a month on it so it really doesn't bother me.

If I had to choose b/w the two listed.......I'd pick neither. Get the OS. I have their clutch in my car and love it. Their products are well constructed and reliable.
Old 03-21-2011, 09:27 PM
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Originally Posted by 1z33
are you running an OS? if so how is it for daily use? thanks
Love it, only time its noisy is low speed tight turning. Been daily driving with mine for over a year now, and my Z is the one we take everywhere.

For some odd reason our stock 05 sits at home most of the time.
Old 03-22-2011, 04:28 AM
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The OS is only for non LSD pumpkins right?
Old 03-22-2011, 04:51 AM
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the pupkin has nothing to do with what LSD you can and cannot fit - all the pumpkins are the same

OS into a VLSD (manual) car needs 1 new output shaft

the "right" choice depends on many factors

1. define track use - a few club days a year is, IMHO, not track use. Particularly if you're using purely street tires

2. a car that sees competitive events many times a year, on R comps, etc, is not a street car IMHO

3. budget - pricing varies widely among the choices, and grows if you need to change the output shaft
Old 03-22-2011, 04:52 AM
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Ive had both...I have 2 way Carbonetic LSD in the car now. LOVE IT.. hardly ANY chatter (only on hard slow turns - like in a parking lot) ....not loud at all.. and I love the tire scrubbin.. Awesome for drifting..

FD I have now - 3.9 .....its fun.....

Just traded my quaife for the carbonetic and the Q was awesome for auto-x and held a drift good.. lifetime warranty so you NEVER have to worry about it again.

Really - just depends on what your going to use the car for.
Old 03-22-2011, 05:22 AM
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I've also had both and went the other way. From the Carbonetic LSD to the Quaife. The carbonetic is a PITA to maintain. I got tired of doing 2k mile fluid changes. So I let it go 5k miles and ended up with a horrible gear whine. I think the carbon floating around eats through parts, changing clearances, unless you change the fluid often. I have not found anyone (I know of 3 others at least) that have had a Carbonetic for > 10k miles that has not either (a) developed gear whine or (b) rebuilt the diff with new bearings to get rid of the noise.

From an operational standpoint, they are both outstanding - smooth and effective. The Quaife is maintenance free and if you drive the car more on the street than the track, it's the way to go.

EDIT: It's expensive to change, costing much more than just the price of the diff, so make the right choice the first time around! Good luck.

Last edited by rcdash; 03-22-2011 at 05:26 AM.
Old 03-22-2011, 07:21 AM
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+1, on maintenance, I have carbonetics and I love it, no noise complaints. But I think I big thing you should think about is maintanace. Would you mind changing the diff oil frequently? I don't
Old 03-22-2011, 09:04 PM
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Originally Posted by Z1 Performance
the pupkin has nothing to do with what LSD you can and cannot fit - all the pumpkins are the same

OS into a VLSD (manual) car needs 1 new output shaft

the "right" choice depends on many factors

1. define track use - a few club days a year is, IMHO, not track use. Particularly if you're using purely street tires

2. a car that sees competitive events many times a year, on R comps, etc, is not a street car IMHO

3. budget - pricing varies widely among the choices, and grows if you need to change the output shaft
Z1, does the 1 new output shaft need to be from a base model Z? is it the passenger side?
thanks

Last edited by 1z33; 03-22-2011 at 09:17 PM.
Old 03-22-2011, 11:13 PM
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Originally Posted by 1z33
Z1, does the 1 new output shaft need to be from a base model Z? is it the passenger side?
thanks
Actually you need an extra VLSD drivers side shaft. Also the older open diffs use the proper stub shaft, the newer ones use a different one that needs to be replaced or modded.

Z1 should be able to answer any questions, i highly suggest talking/ordering from them.

Search under stub shaft and my user name, you will see the pics of the two different stub shafts and how i modded the ones to work. OS may already have a fix for this, Z1 will know.
Old 03-23-2011, 11:17 AM
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I never had a Quaife, but I did consider it as I had an open diff. I chose to go with Carbonetics and I love it. I can't say I have anything to weigh it against, but I still love this one.
Old 03-23-2011, 04:21 PM
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Everyone beat me to it but +1 on the OS Giken and the Carbonetics requires too much maintenance like mentioned above. Out the two mentioned I would pick the Quaife, I almost bout one myself but opted for the Giken.
Old 03-23-2011, 07:18 PM
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Talking on maintenance....I did the following to make diff fluid changes super easy!

I have the Nismo diff set at 2way.....I primarly hit up drift events so its what the doctor ordered! I love it and wouldnt change it for anything!!! Its loud clunky but performs spot on!!

-J

The following was taken from:
https://my350z.com/forum/engine-and-...vlsd-cars.html

Originally Posted by carboneticz
Yes, LSD oil change is a pain in the neck. But the recommended oil change interval for ATS carbon LSD is same as the one for ATS metal LSD (after 2007). Metal LSDs are also available from ATS.
I actually working on making it easier now......Im doing AN fitting bulkhead breakthrough to the hatch floor so I can easily drain and cap, then just fill from the top side.

See here:

Originally Posted by JasonZ-YA
At drift events I loose only a few ounces of diff fluid when the diff starts to cook....

The factory Nissan design, the 350z rear diff has a breather hose, but if it gets to hot and pours out fluid the breather hose dumps it into the rear sub frame versus letting it fall on the road or track. The sub frame catches the fluid and there it stays for all the remaining Z years, driver unknowing he lost differential gear fluid..........

Subframe OEM breather line:


Target hard clear plastic water bottle:


I used this bottle because it was clear, hard plastic so it should hold the hot diff fluid and the top nossle design was easy to retro fit a typical barb fitting to attach my hose with little to no modification. It was about $8.99 so its easily replaceable.

Bottle cage mounted:





I have a single exhaust so I removed the oem heat shield. The remaining heat shield bolt studs were hanging down, so i used the drivers side rear stud with a lock washer and nut (M8x1.25), had to drill the water bottle cage hole a little bigger as well. I bought the universal strap water bottle cage at walmart for like $6 bucks. I then simply used a sheet metal self taping screw for the front water bottle cage hole mount location....the opposite side is the spare tire, remove the spare first. I carry no spare, so no biggy for me...one day ill file it down or replace with a nut and bolt but for now I'm good.

To connect the hose, i need to just buy or build a 1/4" to 3/8" barb fitting and run some hose......

REFILL THE DIFF:
I'm not done.....I plan on adding an AN fitting 90 degree elbow fitting to the differential FILL port, then an SS line going up to the rear hatch floor. I plan on drilling a hole and having a diff fill port with a AN fitting cap back there for super simple diff fills inside the car!

I don't need a diff cooler.....I'm not constantly cooking fluid, but my Nismo LSD does get it all going at drift events to loose "some" fluid.....if i was road racing many hot laps, i would most likely be designing a diff cooler, pump and all...

This set up will allow me to monitor (clear bottle) easily, re-fill accordingly, etc....

Thought i would share my progress thus far....

-J

and


Originally Posted by JasonZ-YA
I worked a little today on my Diff fill port:

This is just mocked up....you can see the end on the right isnt crimped....once i determine the length I need ill cut and crimp it.

From left to right on that hose its:
M18x1.5 to AN10
AN10 90 degree crimped to
kevlar hose
AN10 straight fitting - not crimped yet
AN10 blue bulkhead break through and nut
AN10 black CAP

I drilled a pilot hole with a super long drill bit here and then opened it up big from the other side using a step drill bit:



I plan on filling my diff using this inside the hatch:


-J
Old 03-23-2011, 08:43 PM
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1z33
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Originally Posted by terrasmak
Actually you need an extra VLSD drivers side shaft. Also the older open diffs use the proper stub shaft, the newer ones use a different one that needs to be replaced or modded.

Z1 should be able to answer any questions, i highly suggest talking/ordering from them.

Search under stub shaft and my user name, you will see the pics of the two different stub shafts and how i modded the ones to work. OS may already have a fix for this, Z1 will know.
thanks for the info. i'm gonna check it out. i will call Z1 and talk to and order from them. thanks again.
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