BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      02-24-2009, 12:22 AM   #1
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Quaife ATB Limited Slip Differential for Automatic 135i

Quaife, The Ultimate Differential is now in stock for your 335i at HP Autowerks, Inc.


"The Quaife Automatic Torque Biasing Helical LSD Differential enables a car to accelerate more rapidly and corner faster. How?

Simply by getting the power to the ground!


With an normal open differential, fitted as standard on most cars, much precious power is wasted through wheel spin under acceleration. This happens because the open differential shifts power to the wheel with less grip - along the path of least resistance.

The Quaife differential, however, does just the opposite. It senses which wheel has the better grip, and automatically biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel.

In cornering, while accelerating out of a turn, the unit biases greater power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed.

The Quaife differential also controls loss of traction when the drive wheels are on slippery surfaces such as ice and snow or mud, providing the appropriate biased traction needed to overcome these adverse conditions. Power is transferred automatically without the use of normal friction pads or plates seen in other limited-slip designs.

The Quaife ATB Helical LSD differential's unique design offers maximum traction, improves handling and steering, and puts the power where it is needed most. A definite advantage, whether on the track or on the street.

The Quaife differential is extremely strong and durable, and since it is gear-operated, it has no plates or clutches that can wear out and need costly and regular replacement. There is no maintenance required to the unit, so you can fit and forget.

The Quaife differential is great for street driving or racing. Racers don't have to put up with locking mechanisms or spools that tear the steering wheel out of their hands when cornering. Because it behaves like an open differential during ordinary driving, street drivers will have trouble telling it's there until pushing the cars towards its limits.

The Quaife differential is proven in everything from SCCA Rallying to drag racing and Formula 1. It provides autocrossers with such an advantage, it has become "required" equipment for a winning effort.

Expand your vehicle's limits with the Quaife ATB Helical LSD Differential!"

Here is a video on LSD:

http://video.aol.com/video-detail/bm...tial/538903604

Top tuners using our Quaife LSD:

Berk Technolgy's Redline Time Attack 135i

Burger Motorsport world's quickest 135i
Vishnu Tuning


Most of the automatic transmission 135i come with a bolted diff, so all you need is the Quaife and a local shop capable of the install.

Retails $1493.50

Sale price is $1418.12, FREE Stub Axle Seals, FREE freight to the 48 States!

http://www.hpashop.com/Quaife-LSD-BM...fe-ATB-LSD.htm

For manual 135i's with a welded differential: We can offer a complete Quaife Final Drive Unit for a direct swap.
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Last edited by HP Autosport; 01-10-2014 at 03:34 PM.
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      02-24-2009, 01:47 AM   #2
Bahraini135
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So.. $1450 is the price for the Auto fitment?
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      02-24-2009, 01:53 AM   #3
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Quote:
Originally Posted by Bahraini135 View Post
So.. $1450 is the price for the Auto fitment?
Yes, that is the price for the Quaife.
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      02-24-2009, 02:07 AM   #4
Bahraini135
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I have the Nismo mechanical LSD on my Z and frankly it affected the daily-drivability. It's too agressive and clunks like hell!

How is the Quaife compared to that? will it feel like OEM LSD?
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      02-24-2009, 10:19 AM   #5
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Quote:
Originally Posted by Bahraini135 View Post
I have the Nismo mechanical LSD on my Z and frankly it affected the daily-drivability. It's too agressive and clunks like hell!

How is the Quaife compared to that? will it feel like OEM LSD?
I believe the Nosmo LSD is a clutch style and was designed for off-road use only. Althogh great for road racing and drifting, it can be very noisy for street use.

The Quaife is extremely quiet, no clunks or sounds of any sort during operation.
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      02-24-2009, 10:33 AM   #6
Bahraini135
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Sorry for all those questions... just wanted to make a couple of things clear..

so, before ordering, we need to make sure we have a bolted diff, right? which cars came with the welded ones? (mine is an 09 Auto M-packaged (non US-spec))
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      02-24-2009, 01:59 PM   #7
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^Good question. Mine is June 08 build manual.
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      02-24-2009, 02:27 PM   #8
Add1ct
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mine is the same as above- june 08 and 6mt- what is the install cost on these
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      02-24-2009, 02:28 PM   #9
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mine is 2009 , automatic transmission, european delivery
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      02-24-2009, 03:32 PM   #10
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Quote:
Originally Posted by Add1ct View Post
mine is the same as above- june 08 and 6mt- what is the install cost on these
1 arm
1 leg.

i would say about the cost of the item itself.
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Is this thing on?
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      02-24-2009, 03:47 PM   #11
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Quote:
Originally Posted by Bahraini135 View Post
Sorry for all those questions... just wanted to make a couple of things clear..

so, before ordering, we need to make sure we have a bolted diff, right? which cars came with the welded ones? (mine is an 09 Auto M-packaged (non US-spec))
Please PM me your VIN, production date, all the number on the sticker on top of the final drive housing.

Harold
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      02-24-2009, 03:49 PM   #12
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Quote:
Originally Posted by Upgrade+ View Post
^Good question. Mine is June 08 build manual.
You need this instead:

http://www.1addicts.com/forums/showthread.php?t=234437
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      02-24-2009, 03:49 PM   #13
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Quote:
Originally Posted by Raflekt View Post
mine is 2009 , automatic transmission, european delivery
Should be bolted. Please PM me your VIN, production date, and all numbers on a sticker on top of the final drive housing.
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      02-24-2009, 04:47 PM   #14
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so if we have the welded one then we got f**ked by bmw
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      02-24-2009, 04:58 PM   #15
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Quote:
Originally Posted by Add1ct View Post
so if we have the welded one then we got f**ked by bmw
All 135i 6-speed manuals came with welded ring gears.
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      03-11-2009, 04:49 AM   #16
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Quote:
Originally Posted by Add1ct View Post
so if we have the welded one then we got f**ked by bmw
You can always purchase a complete housing with a quaife installed, while your there why not change your ratio to 3.46 for greater acceleration. Ask Harold for details. I have done a few now and it is fantastic with a ratio changes
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      03-25-2009, 12:26 AM   #17
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Quaife for your automatic 135i is good in stock.

Complete Quaife FD for your manual 135i is ready to go as well!
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      04-07-2009, 12:40 AM   #18
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All 135i applications are ready to ship!
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      04-17-2009, 04:57 AM   #19
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Any idea if the Quaife will work in a 128i? Since it is a manual, I assume it has the same welded gear problem.
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      06-19-2009, 10:33 PM   #20
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Quote:
Originally Posted by andrew@southernBM View Post
You can always purchase a complete housing with a quaife installed, while your there why not change your ratio to 3.46 for greater acceleration. Ask Harold for details. I have done a few now and it is fantastic with a ratio changes
This is exactly how we did our Quaife upgrade. Complete swap out with an auto diff and the shorter gear ratio (quicker). I feel that this is the best option since the BMW's manual tranny final drive gears are a bit tall, the auto final drive coupled with the manual trans - PERFECT!

Quote:
1 arm
1 leg.

i would say about the cost of the item itself.
It's actually a steal if you compare it to some of the other options out there. I quoted out a custom clutch LSD and it was almost $10K.
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      07-17-2009, 12:56 PM   #21
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Quote:
Originally Posted by BerkTechnology View Post
This is exactly how we did our Quaife upgrade. Complete swap out with an auto diff and the shorter gear ratio (quicker). I feel that this is the best option since the BMW's manual tranny final drive gears are a bit tall, the auto final drive coupled with the manual trans - PERFECT!



It's actually a steal if you compare it to some of the other options out there. I quoted out a custom clutch LSD and it was almost $10K.

It is a steal compare to other more expensive options out on the market.

Last edited by HP Autosport; 09-23-2009 at 11:20 AM.
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      11-01-2009, 11:54 AM   #22
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I've had a Quaife on my 130i before, good product. Now I have a 135i, and considering upgrading this one also. On thing that I'm wondering about is the stock "LSD-function" on the 135i/335i that works through the brakes, (that functions even when you have the DSC/DTC completely turned off.)

- How does the Quaife unit work together with this function and is there a way to turn it off?
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