Would there be interest here for the S65/S600 owners to have Quaife build us the LSD that would fit our diff housings? The current QDF9V does not work for our cars, even though they list it - it _will not_ fit, it works on 55/63 diffs and those are not the same as 600/65 diffs.

The minimum run they will do is around 20 units.

Marcin at Speedriven is working w/ Quaife on this and has 5-6 folks interested. He said he'll stock some units and if we can get 10-15 folks interested here, maybe we all can have one of these, similar to what's sold for the 55s:

http://www.phantasmusa.com/quaifeqdf9v.html

Please respond to this thread if there is interested - and please work with Marcin on the pricing. I have a CL65, and have another 4 CL65 owners already interested. If between 216 and 221 folks we can raise more interest, we can own one of this, which is much better than the Kleemann mod to the stock diffs and not as expensive as the O.S. Giken unit resold by Renntech for 5k.

 

Interesting question as, being SpeedRiven dealer, I asked this question a while back. Still have hard time understanding how you were able to get hold of Marcin as I was trying to contact him for over a month without any luck.

Answer will be - "I'll take five" as long as it also fits SL diff as well... Oh - those five need to be shipped to Canada

Igor.

 

I believe this unit would not work in the SL housing as it's different than the M275 motor 220/221/215/216 cars.

I've been in touch with Marcin regularly over last 3 weeks - I have a intercooler kit on order for my 216 65.

 

Hmmmm. i was talking R230 body. It is different in the books, but I could not see any differences when working on these - pretty sure it will fit 2004-2005 SL600...

 

Will it fit a w220 s65?

 

The speedriven site has been down the last few days...
Is this only necessary for tuned cars? Is there a big issue of problems with stock 600/65s?

 

I was planning on getting the Renntech unit, so I would be interested in 1.

 

Quick update. We are back working together with SpeedRiven and this time with Marcin directly - there might be an alternative option pretty soon, but it will not be 100% lock. 92-93%

Igor.

 

Please let us know soon... I'm going to add an LSD to my car by spring...

 

From what I was told, it is pretty much useless unless you track the car. Years ago I was all set to order it but was talked out of it by knowledgeable members on this board. Back then I was a serious street racer but they claimed it wouldn't help me not even a little bit.

 

I would respectively disagree. Once you have a powerful car and you step on it, without LSD you will feel that wheel on one side is turning MUCH faster than the other (unless you are on a perfectly even and balanced surface, which is never the case). Best way to experience this would be in snow

Igor.

 

If any of you gentlemen would like to PM me with your full VIN number, I will check to see if your diff is compatible with the Quaife version we currently have in plan for production in May.

 

Thanks for the dozen or so that responded to my request. We have been able to determine with a good deal more clarity the number of MB models that this Quaife diff. will fit.

I am visiting Quaife tomorrow, and will see if we can defer some of our existing orders to bring production of this version forward.

I will update the position by the end of the week, and if anyone else is interested in giving their VIN, please pm me.

Regards, Kevin Bird.

 

My arm could be twisted

 

If you PM me your VIN, I will do my best to twist your arm!

Regards, Kevin.

 

You got to personally see it fit a CL/S65, Quaife has been known to say it will fit when it really doesn't. I'm working with Speedriven and willing to make my car a ginnea pig for this...

Anyone else know of a figment from Quaife for our cars?

 

Just to clarify the position as briefly as possible, we are responsible for developing all the missing Mercedes Quaife ATBs. We arrange for Quiafe to develop them when we see there is no available product from Quaife's existing catalogue.

So, provided we can identify the final drive installed in each car from the Mercedes parts catalogue, if it matches a Quaife unit that has been developed, then there is no need for Guinea Pig activities. What we, Birds, provide, is specifically designed and manufactured to fit your final drive.

There's no doubt that the current Quaife catalogue is misleading, because all E55 cars, for example, are not all compatible with the same Quaife diff. Very shortly, the Quaife online catalogue will contail all of the correct data. Our website already does.
http://www.birdsauto.com/quaife/sear...ercedes&s=&mi=

Any questions, then PM me with you VIN, and I can tell you exactly what you need, whether its in stock, in production with a delivery date or on the plan for later this year.

Regards, Kevin Bird.

 

I don't have my VIN in front of me, will PM later.

I have a 2008 CL65 that I'm looking to get a Quaife unit for. This car only uses one type of rear end housing - do you know of a Quaife part that fits this car and have you installed any? I'm ready to purchase, and have someone locally that can install.

Also, when you say "develop", are you an authorized Quaife reseller that can request Quaife to manufacturer a specific fitment based on a minimum order quantity or are you a R&D facility that co-develops with Quaife with engineering resources and access to a vehicles of exact model yr/make to test them? I just want to understand what you are saying in this context, "we are responsible for developing all the missing Mercedes Quaife ATBs."

 

Birds have been enlisted by Quaife to identify all of the "missing" Mercedes Quaife ATB differentials, assess the viability for production. We then provide the data and patterns in order for Quaife to manufacture the units, and order for stock. We are therefore the people who will stock and distribute all new versions, and hold all the knowledge of which Quaife device is suitable for each Mercedes Benz vehicle.

The 216 CL 65 AMG unit is in production right now, and is due to be delivered into stock next month, per our website. So clearly, we have not installed one yet.

The 215 CL 65 AMG is already in stock, and has been so for a number of months now.


Hope this answers your queries, and look forward to receiving your VIN.

Regards, Kevin.

 

I just picked up a W220 S600 I'd like to put a quaife in (have one in my SL55). Are these available now?

 

Yes Sir!

We have plenty of stock.
Here is a link to the product in question.
http://www.birdsauto.com/quaife/sear...=S+600+Biturbo

If you could please fill in the response form by clicking on the product description, I will email you an order form.

Best regards, Kevin.

 

Gentlemen,



Quaife have just completed a major update to their website.

Best bits are here
http://www.quaife.co.uk/shop/search/...taxonomy%3A267

And a video of their impressive production facilities here.


Regards, Kevin

 

Hi Kevin any advantages/disadvantages with this unit Vs a Renntech model for my 2007 S65?

Thanks
Paul

 

First advantage is price, I guess. Second would probably be availability. The unit shown one the Renntech site doesn't appear to be the one for your car, but I guess they must have one.
Both devices are designed to improve traction, and therefore reduce wheelspin, improving acceleration and traction control intervention.

Technical differences are that the Renntech is a locking diff. which can produce some unwanted effects, such as power-on understeer (because when locked, there is no differential effect on the rear wheel speeds, making the rear axle virtually 'solid')
Sometimes a locking differentials can interfere with the stability control electronics, but I'm guessing the highly respected Renntech firm have avaoided that problem.
Locking differentials have wearing clutches, which require special lubricants and service schedules.

The Quaife is an Automatic Torque Biasing Differential (ATB). It never locks, but distributes torque to the wheel with most grip, and away from the wheel that is starting to spin. These devices are specifically designed NOT to lock, which is generally acknowledged to be the biggest downside of a clutched differential.
The effects on traction are similar to a locking differential, but potentially much less aggressive, leading to easier control of the rear end of a powerful rear wheel drive car. An ATB diff. doesn't confuse the stability control, and cannot cause understeer. It's completely maintenance free, and uses factory lubricants.

Locking differentials can utilise the potential aggression of the locking effect to deliberately destabilise the rear end on power. This is why they are often the best solution for drifting in relatively low power cars. Of course the S 65 has plenty of power and torque, so you never need to destabilise the car if you wanted to drift the car or generate a little power-on oversteer.

But if you are merely looking for a way to improve the acceleration, dramatically reduce traction control intervention, and want the ability to deploy more of the available performance more of the time, without any of the potential downsides, then I am 100% certain that Quaife will give you what you need.

Regards, Kevin.

 

Kevin, when we last corresponded, you mentioned that the output shaft was a bit different on the s600 diff than the s65 diff on the w220 chassis. That put me off because I would like an exact fitment. What is the solution there?