Quaife or Wavetrac?

[HP Autosport]

Originally Posted by humanferret

So, can anyone round out the comparison with an update on the performance of the Dinan LSD for the n55 135i? It was added to their web site a little more than a week ago.

It's still for the manual N55 only. Quaife still has the only off the shelf application for the N55 DCT. You will find custom clutch type LSD for the N55 DCT from many other sources.

Dinan was selling Quaife a while back, then they got a little slap on the hand since they were NOT the authorized dealer for Quaife in the USA. Their Quaife units were coming from an unknow source.

If I am right, their current LSD is just a highly marked up Wavetrac final drive. Typcially the Wavetrac complete final drive is $1995 plus a refundable $1000 core. Dinan is charging $2599 plus a $1400 core. I can understan why since most of the low mileage rebuildable cores were acquired by us.

[humanferret]

Originally Posted by HP Autowerks

It's still for the manual N55 only.

Fair enough. I've got a manual, though; so I'm going to be a little selfish and ask if anyone knows how the three diffs stack up on a stick.

Thanks!

[HP Autosport]

Originally Posted by humanferret

Fair enough. I've got a manual, though; so I'm going to be a little selfish and ask if anyone knows how the three diffs stack up on a stick.

Thanks!

First someone needs to find out if Dinan is using the Wavetrac or not.

[WAY]

Originally Posted by maxnix

So tell us about it as you may well be the only one on these Forums with a Drexler.

I had a Drexler on my 135i. It isn't noisy at all and it is a great unit. As for the comment that your suspension tuning is rubbish if you have one wheel off the ground, well, on certain tracks the fastest way around it is to bounce a curb. Of course, we are talking extremes here, not your normal track day I suppose.

[Si-M240i]

I am getting a Quaife fitted next week

[Focusedintntions]

My question is why doesn't any body try producing and selling a new ring gear for us DIY'ers out there to make installation/parts and all cheaper?

[HP Autosport]

There is little doubt that whilst BMW have endowed this car with superb dynamics, there remain significant margins where performance can be improved. We have co-ordinated all of the necessary equipment and expertise to transform the braking, handling, traction and ride quality, so that the driver is able to fully communicate with the chassis, and truly elevating the dynamics to provide the real ultimate driving experience.

Design:

Perhaps the innovative design of the Quaife ATB differential is what has attracted so many BMW enthusiasts around the world. Unlike regular limited-slip diffs that use wearing clutches (eg. the ones used in BMW M power cars), the Quaife is gear operated and will never wear out. The design enables a smooth, progressive transfer of torque between the rear wheels with no fuss, and applies power to the tarmac with maximum effect. The result is a transformation of performance. In 20 years of tuning BMWs this has to be the most effective tuning element we've ever had to offer, which is why it is the first enhancement we advise to all BMW owners looking to increase performance. Backed by a limited lifetime warranty.


DTC interference:

In a recent survey to BMW customers who have bought a Quaife differential, we asked what their main reason was for the purchase. To enhance performance was at number 1, which is understandable. But at number 2, the reason was to eradicate that irritating, flashing yellow light. Dynamic traction control (DTC) or 'electronic braking' has limited the new BMWs to quite an extent, which most of you will know. When you put a Quaife limited-slip diff in the car, it almost removes that light completely whilst working in perfect harmony with the BMW's electronic systems. We guess that BMW had prepared them for a limited-slip diff option, but decided to have them as a unique element in the M power BMWs. The Quaife is the ultimate solution, no question.

Performance:

A single tuning element that increases acceleration, cornering speeds, traction, steering and handling to such a degree that customers say it 'completely transforms the car'. This is why we rate it so highly and have invested so much time and money into our Quaife BMW worldwide project. The majority of people are too interested in getting maximum power gains from their engine, not knowing that the BMW's electronics will restrict them. We can offer combinations of a Quaife LSD and engine re-map/anti-rollbars/suspension kits and more, dependant on your preference and what we would advise for your specific BMW. Our experience and expertise have enabled us to create some M Power-matching BMWs over the years, and now we have a new trick up our sleeve in the Quaife limited-slip diff...

[MrBlonde]

Harold and HP Autowerks really have sorted out a killer product set for our cars. Hats off to them and best wishes for success.

[Bdh821]

OS Giken!

[cpt97m3]

Originally Posted by Bdh821

OS Giken!

Where can you get an OS Giken for the 135i?

[BMW86]

The latest 1M promo video has sparked my burning desire to get an LSD again!!

[Mr Kleen]

Originally Posted by BMW86

The latest 1M promo video has sparked my burning desire to get an LSD again!!

I haven't taken delivery of my 135 and I already want an LSD.

[FORCED AIR]

Despite this being a very old thread and everything HP said being true...the original question was which would be better for drifting...the answer to that is a clutch type LSD like OS Giken or KAAS. For drifting you want a full 2 way diff with the most lock bias you can get. Gear type LSDs don't offer locking under braking as they mostly function of or torque bias.

That being said....those who are not trying to build full drift cars...go with the Wavetrac or Quiafe.

[HP Autosport]

Originally Posted by FORCED AIR

Despite this being a very old thread and everything HP said being true...the original question was which would be better for drifting...the answer to that is a clutch type LSD like OS Giken or KAAS. For drifting you want a full 2 way diff with the most lock bias you can get. Gear type LSDs don't offer locking under braking as they mostly function of or torque bias.

That being said....those who are not trying to build full drift cars...go with the Wavetrac or Quiafe.

I agree with most of what was said above.

Quaife is still a more robust unit with better reliability than the Wavetrac from our experience.

[MarkkyyMan]

Doesnt the Quaife unit retain a certain output shaft that the Wavetrac does not?

[Yuchi]

Originally Posted by HPFREAK

I was told by someone that has a Quaife with an auto trans that it was not a worth while mod. Who can honestly say it is worth the money?

So, what's the answer to that question....??

[HP Autosport]

Originally Posted by Yuchi

So, what's the answer to that question....??

Auto or manual, it doesn't make any difference. Perhaps "HPFreak" can prove not having a LSD actually gives a car more traction and stability. It's worth every penny to have more traction, especially with a modified 135 or 335i.

I can see adding a LSD to a car that doesn't have traction problems to begin with a waste of money.

[135nRXP]

Man I keep putting this off. I want and need an LSD soooo bad.

Harold, so I went on your website and I just wanted to make sure I have this right. When selecting the options at the bottom, for my 09' automatic, I would be looking at $2,995 with $1,000 of that coming back to me when I return my core? So it would be $1,995 all said and done for the complete Quaife final drive with 3.46 gears?

[Dackelone]

Q). for those of you with an LSD... does having one increase rear tire life? I mean it must since your not spining one tire right>? Or do you now spin both rears!?!? lol

[1speedbike]

Originally Posted by cpt97m3

Where can you get an OS Giken for the 135i?

http://www.turnermotorsport.com/p-14...-335i-lsd.aspx

or

http://www.amsperformance.com/cart/b...-unit-lsd.html

or

http://www.mini-madness.com/browsepr...-and-135i.HTML


Though I do not have first-hand experience, I have heard stories of more than one or two people who switched from Quaife to OS Giken and felt that the OSG LSD was better. And the Quaife is more expensive as well, depending on the application

[adrean8j]

Ok here is why my confusion comes in...and many websites use language that may be slightly confusing for those of us not yet educated on what goes on with the install...I have a MY2008 MT 135i. Which diff. option should I choose? I am guessing I need the complete final drive unit? If I wanted OS Giken do they have an option for me???

[1speedbike]

Originally Posted by adrean8j

Ok here is why my confusion comes in...and many websites use language that may be slightly confusing for those of us not yet educated on what goes on with the install...I have a MY2008 MT 135i. Which diff. option should I choose? I am guessing I need the complete final drive unit? If I wanted OS Giken do they have an option for me???

Berk Tech uses an OS Giken on their 2008 MT time attack car, if i recall correctly. I'd ask them, they're always infinitely helpful towards me