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Which LSD?

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Old 11-14-2017, 05:20 AM
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Which LSD?

Hi guys,

i want to install a LSD, so i can get rid of the AWD for Drift events and for the road race track.
I want to install quaife. The 997 Cup/GT2/3 or such are maintenance intensive.
Anyone uses this quaife LSD?
http://quaife.co.uk/

Cheers
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Old 11-14-2017, 05:24 AM
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Subscribed, I’m interested to hear peoples experience with this. The awd on these card doesn’t seem great and restricts rear tyre choices. I have 12.5” wide rears but can only use 315 tyres! I’m thinking, get rid of awd and put a good lsd and maybe 355 rear rubber?
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Old 11-14-2017, 05:32 AM
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The tyres are on side effect when going to rwd. I want to learn to handle the car better, and getting a better driver. Thats impossivble with awd.
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Old 11-14-2017, 05:57 AM
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Quote:
Originally Posted by ghostofpain View Post
The 997 Cup/GT2/3 or such are maintenance intensive.
Cheers
They are not...simple misinformation.. A good quality properly set up LSD is nearly bulletproof with virtually no required maintenance. A Quife or other gear diffs are not LSDs. They are TBDs (torque bias diff) with no ability to fully lock. Different animals.

Last edited by pwdrhound; 11-14-2017 at 06:52 AM.
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Old 11-14-2017, 09:54 AM
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Where is the difference? I know BMW uses quaife in all M Models and the models where you can order it.
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Old 11-14-2017, 10:35 AM
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On a quaife if you lift a wheel = no torque, you loose the torque to the other wheel also. Vs limited slip where the wheels are essentially locked together with a limited amount of slip allowed between them, even if one is off the ground
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Old 11-14-2017, 11:01 AM
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Thx. Understood.
So for drifting and a little road racing the quaife should suit my needs.

Seems to work quite nicely.
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Old 11-14-2017, 11:05 AM
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Quote:
Originally Posted by ghostofpain
Hi guys,

i want to install a LSD, so i can get rid of the AWD for Drift events and for the road race track.
I want to install quaife. The 997 Cup/GT2/3 or such are maintenance intensive.
Anyone uses this quaife LSD?
http://quaife.co.uk/

Cheers
Get either a Guard LSD, GT2/3 (with steel clutch versus bronze) or a cup LSD retuned for street static lockup. Those will outlast your transmission.
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Old 11-14-2017, 11:21 AM
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What is the approximate cost? Is it a big job? Tia
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Old 11-14-2017, 11:25 AM
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The quaife is cheap compaired to the other mentioned LSD like 997 Cup et cetera.
As far as i understood they are all LSD just the technic to achieve it is different (Plates/Gears).
Since you can leave the transmission in the car, the swop should be done in a couple of hours.
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Old 11-14-2017, 01:26 PM
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Quote:
Originally Posted by ghostofpain View Post
The quaife is cheap compaired to the other mentioned LSD like 997 Cup et cetera.
As far as i understood they are all LSD just the technic to achieve it is different (Plates/Gears).
Since you can leave the transmission in the car, the swop should be done in a couple of hours.
If they're doing it in a couple hours its not being done properly. It should be done with the trans out of the car so they can measure and shim the diff properly.
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Old 11-14-2017, 01:31 PM
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Quote:
Originally Posted by ghostofpain
The quaife is cheap compaired to the other mentioned LSD like 997 Cup et cetera.
As far as i understood they are all LSD just the technic to achieve it is different (Plates/Gears).
Since you can leave the transmission in the car, the swop should be done in a couple of hours.
Couple of hours??? Most reputable shops are 4-8 hours. As far as cost goes, you can find used GT3 LSDs sub $1000 plus add $1000 for either cup clutch discs or guard clutch discs and you have an actual proven reliable locking differential versus a torque biasing differential. If you are set on a torsion helical type torque biasing differential, the quaife have been good from what I hear. But my suggestion is determine what type of differential fits what you need then establish your budget based on that. Because you are not just paying for the part, you are paying for the installation which most shops will be in the $800-1000 range plus fluids, bearings and shims washers. So it is not unheard of to be $400 just installation supplies on too of labor.
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Old 11-14-2017, 01:58 PM
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if your considering a quaiffe then look at the wavetrac. its a tbd and very reasonably priced. about 1200$ plus install
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Old 11-14-2017, 02:18 PM
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For street use though a simple wavetrac would be sufficient? I can't recall a time in my ownership where i've lifted a wheel canyon carving or spirited backroad driving? I get for hitting rumble strips at a track or something but there is a significant price difference between a wavetrac and a proper LSD (1kish vs. 5kish?)?
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Old 11-14-2017, 02:23 PM
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lifetime warrenty and able to handle 1000 hp to the wheels. its been used for yrs on corvettes bmw m/b mustang and others for both road and drag duty. for the street you will barely notice its there. i have one in mine took 2 hrs 2 shims and a new bearing on the d/s havent looked back. rwd with a tbd is the mack daddy! like a porsche should be
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