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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > REVIEW: Quaife Limited Slip Differential + M3 suspension components (long!)



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      04-27-2010, 08:01 AM   #1
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2009 335i  [8.90]
REVIEW: Quaife Limited Slip Differential + M3 suspension components (long!)

17. M3 suspension parts & Quaife limited slip differential

This is part of my extended review thread that you can find in its entirety here: 335i E90 LCI - Experiences and review of various modifications (long!) but that I reposted here in order to make this part easier to find. I have posted it in both the drivetrain and suspension sections as the two modifications reviewed fall into both categories but were done at the same time, therefore difficult to dissociate.


Why?
If you want your car to drive faster than it can do in stock form, increasing the power output of the engine is only one part of the equation. If driving faster in a straight line on motorways is your only goal, then this might be enough; however, if your objective is also to be faster around corners, bends or even on a racetrack, then an improved suspension and better traction is a no-brainer.

Let me start by saying that the stock suspension of my car (it's a 335i without M sport suspension) is actually quite good, once you ditch the awful runflat tires and upgrade to Michelin Pilot Sport 2 as I've done (see previous posts). But still, it's a suspension the main objective of which is to make the 335i a fast luxury sedan, and not necessarily to be on the sporty side - pursuant to BMW, that's what the M3 is for. For me, the stock suspension of the 335i has a bit too much body roll in corners, it does not react as fast and precise to steering input as an M3 and does not provide a very good feedback from the road to the driver. You can still drive it quite fast, but you have to sort of guess where its limits are or what you have to do in order to go where you want; I wanted to improve this.

Also, once you increase the engine power and, in particular, the torque, you are faced with another problem: traction! I experienced that, after having flashed my car with the Evotech flash, it got increasingly difficult to transfer the power on the road, the tires spun too easily and much of the desired forward momentum went up in black smoke, decreasing the life span of the tires. This was even more true in corners or in the wet - unless the road is dry, there's wheelspin sometimes even in fourth gear, and even when dry, powering out of bends is near impossible in second or third gear.

Why is that, you may say, doesn't the 335i come with a differential? Well, BMW has labeled a function of its DSC "electronic differential", but that is quite a misnomer: All it does is brake the rear tire that has lost traction, thus decreasing the life span of your rear brake pads but not helping with forward momentum. The 335i unfortunately is not equipped with a limited slip differential as all M models are, for marketing reasons in order to differentiate it from the M3. As a consequence, it has an open differential which means that the power of the engine is always directed to the wheel with the least resistance. In corners, that means obviously the inner wheel as the weight of the car is transferred to the outside - and if you apply full throttle now, the inner wheel starts to lose traction and spin, the DSC cutting in to prevent this, and you get sort of a hickup-driving-style. That's not fun! You can't determine the curve radius with your throttle, you can't drift, and most of all you can't properly apply the power of the mighty N54 to the road. I experienced that on numerous occasions during my trip to the famous Nürburgring in August 2009 and by driving through mountain passes in the Italian Alps, and this led me to the conclusion that a limited slip differential (LSD) was definitely needed here.

What does it do? An LSD senses that a wheel loses traction and transfers the torque to the wheel with more traction. In the example above, if you corner with an LSD, it will automatically transfer the engine power to the outer wheel which is under load and therefore has more traction, enabling the car to apply more power to the road. Such differentials are also called "torsen" (torque sensing) or "automatic torque biasing" (ATB) differentials. They can lock up the normally open differential until 80% (a complete lock would be too dangerous) to enable the torque transfer from one wheel to the other. The effect is typically progressive, making it easy to drive.

How?
A) Limited slip differential:
There are several limited slip differentials available for the 335i - e.g. from Drexler Motorsport, Quaife Engineering or Wavetrac. Drexler is a "plate type" LSD that uses clutch plates to do the torque vectoring, whereas Quaife relies on gears for their operation. The advantage of the latter technology is that, as there are no clutches that are used, such LSD are almost maintenance free, "fit-and-forget" solutions. For me that was the decisive factor, as I did not really see fundamental advantages of a clutch type LSD (except in motorsport which was irrelevant for me). So then, Quaife or Wavetrac? There's a lot of discussion going on on this forum about the advantages of one over the other. Wavetrac is supposed to work even if one wheel is completely off the ground - but that seemed a rather irrealistic scenario for my driving style, so that argument was of no concern for me. On the other hand, Quaife had a long-standing track record (decades, really) and first rate reputation, in particular for BMWs, and I knew several forum members personally who had it installed in their cars. Furthermore, Wavetrac didn't have an option for a welded differential like mine (I later learned that there may be a workaround, but I wasn't interested in a solution that wasn't perfectly established), so the choice was easy in the end - Quaife.

Now, where to obtain it? If I was living in the US, I would have gone through HP Autowerks as I had already dealed with Harold in the past and was quite satisfied with his services. Being in Europe, however, I was recommended Birds in the UK as they are the European distributor of all Quaife differentials and have unmatched experience in this sector. As I wanted to have other modifications done at the same occasion and wanted to benefit from their experience with BMWs, I combined the installation of the differential with a nice trip to London where I hadn't been for a long time - killing two birds with one stone! You can look up their prices here on their website - due to my welded differential I needed a final drive unit which cost me (installation included) around 1800 EUR. I also thought about obtaining an LSD with a shorter gear ratio which is available as an option (for quicker acceleration), but in the end I thought that it was unnecessary as I'm not into 1/4-mile-racing and wanted to retain a high top speed (unlimited Autobahn! ).

So, last February I took the ferry over the Channel and drove on to Birds whose shop is located in London, not far from the Heathrow airport. They're really nice guys, and I got shown around their shop where several cars were in surgery, the most impressive being a conversion of a Z8 from left- to right-hand drive (wow! ). I was also shown what the LSD looked like and where under the car it would be installed (as I don't really have on-hand mechanical knowledge). - The installation itself was routine for them, and the new LSD went in without any problem.

B) Suspension:
The decision on how to upgrade the suspension was on several levels more complex. Springs? Dampers? Sway bars? Coilovers? Which type of each? I had test driven the Bilstein B16 Ride Control coilover on a similar car to my own last summer in South Africa (thanks to my friend Charles! here's his review) and experienced it as a passenger on Tony's car (see his review under this link), and had been very favorably impressed with this coilover. However, it also was rather expensive (2000 EUR without install), and together with the LSD that was slightly out of my budget at that time.

In the meantime, however, I had discovered that it is possible to transfer a certain number of components of the M3 suspension onto our cars, thus integrating parts of the superior handling characteristics of the M3 onto the 335i. In particular, this link about various M3 components as well as this review had been quite helpful and instructive in this matter. These parts were somewhat less expensive overall and could also be combined with different springs, dampers or the Bilstein B16 coilover at a later date. Also, none of these upgrades (except the sway bars) exist as aftermarket items, making them even more desirable and indispensable if one is really serious about increasing the handling capacity of the 335i. Another plus is that as they are OEM items, so almost no one will be able to tell that they're not stock - something which is rather important to me as my car needs to go through the TÜV inspection at some point in time.

It was mentioned by those who already had these pieces installed that while mounting the LSD, it makes sense to install other parts for the rear axle at the same time, in order to avoid duplicate work later on. It seemed therefore obvious to me that I should have at least all rear axle items installed (rear subframe bushings, rear sway bar, rear guide rods, rear upper links); but (yeah, the mod bug got to me…) in the end I just thought "why not do all the rest too if the car is on the jack anyway?" and added the front axle items as well (sway bar, tension rod, lower wishbone). However, I left out those that needed different dampers (rear lower camber links), as I wanted to change them at a later stage (see above).

I somewhat hesitated as far as the sway bars were concerned, as Birds recommended the Hartge sway bars instead of the M3 ones, the reason being that the M3 ones still induce some understeer while the Hartge ones are stiffer and provide a tendency for mild oversteer. However, I had driven an M3 and found it very well balanced, and a more or less neutral steering appealed to me as I do not want to pretend to have sufficient driving skill to counter any sudden movements from the rear end. Also, the Hartge sway bars seemed excessively expensive to me (around 730 EUR = almost 1000 USD), and I really had to set a limit somewhere.

I obtained all items except the sway bars from HP Autowerks, as I could then be sure not to miss any vital part. However, I have in the meantime tried to put together a list of all parts and part numbers that were used, as a means of reference. Here it is, along with some explanations for each part (some borrowed from the HP website) - no guarantee is given, of course, and these are the parts for an E90/E92 (most words in brackets are the German words for each part):

1. Front anti-roll bar / sway bar (Stabilisator vorne)
Diagram see here)
31352283515 (Stabilisator vorne)
31352283516 (Gummilager Stabilisator Unterteil, 2x)
31352283517 (Gummilager Stabilisator Oberteil, 2x)
31352283037 (Haltebügel Stabilisator, 2x)
31352283441 (Pendelstütze vorne links)
31352283442 (Pendelstütze vorne rechts)
07119904295 (Bundmutter selbstsichernd, 4x)
33326768884 (Sechskantbundmutter, 4x)
That's what it looks like:


2. Rear anti-roll bar / sway bar (Stabilisator hinten)
As delivered the E9x 3 series has excessive under steer and limited roll control. The M3 rear sway bar increases rear roll stiffness by reducing mass transfer forces in corners. That should give the car crisp, quick turn-in response and reduce understeer, making the car feel more planted. M3 anti bars give the driver the ability to rotate the car on corner entry and steer with the throttle when necessary. It also makes the suspension (front or rear) stiffer, which will reduce the grip.
Diagram see here)
33552283655 (Stabilisator hinten)
33552283709 (Gummilager Stabilisator Unterteil)
33552283710 (Gummilager Stabilisator Oberteil)
33552283714 (Haltebügel Stabilisator, 2x)
33556764428 (Pendelstütze, 2x)
07119906077 (Zylinderschraube, 4x)
07119903931 (Sechskantschraube mit Scheibe, 2x)
33326768884 (Sechskantbundmutter, 2x)
That's what it looks like:


3. Tension strut / rod (front) left+right (Zugstrebe Vorderachsträger)
31102283575 (left)
31102283576 (right)
That's what they look like:


4. Lower wishbone / control arms (Querlenker Vorderachsträger)
These add 0.75 degrees of camber, an alignment of the suspension after the install is therefore mandatory. A different xenon light regulation rod is needed (provided in the HP kit).
31102283577 (left)
31102283578 (right)
37142283867 (xenon regulation rod)
That's what they look like:


5. Rear subframe bushings (Gummilager Hinterachsträger)
The soft stock rear subframe bushings are replaced with stiffer, high performance bushings for a more predictable handling and more control.
33312283382 (front, 2x)
33312283383 (rear, 2x)
That's what they look like:


6. Rear guide rods (Führungslenker Hinterachsträger)
Original guide rods were made to deflect under load, a bad thing for good handling and traction. The M3 guide rods are made of all aluminum, a lightweight component thereby reducing wear and tear on other, more critical parts (rear subframe, control arm bushings etc). Each guide rod weighs just over 1.5 lbs making for a total of ~3 lbs for both parts (stock guide rods weigh 2.1 lbs each). Bushing deflection with a rubber material at one end is replaced by a sealed joint for deflection and noise free operation. Bushing deflection is unwanted because it leads to excess suspension movement. This is bad for handling and traction due to constant camber and toe changes. Plus, any power from the engine can take longer to get to the ground because it has to windup the bushing first.
Diagram see here)
33322283547 (left)
33322283548 (right)
That's what they look like:


7. Rear upper links / wishbones (Querlenker Hinterachsträger)
Original upper links were made to deflect under load, a bad thing for good handling and traction. The M3 links are made of all aluminum, a lightweight component thereby reducing wear and tear on other, more critical parts (rear subframe, control arm bushings, etc). Each link weighs just over 1.7 lbs making for a total of ~3.4 lbs for both parts (stock guide link weigh 2.5 lbs each or 5 lbs for both). A weight savings of over 1.5 lbs from the rear suspension.
33322283545 (left)
33322283546 (right)
That's what they look like:


Here's also a photo of all parts before the install:

The installation procedure of most items was (pursuant to Birds) very straightforward, in particular the tension rods, control arms, rear guide rods and rear upper links were really easy to do - take out the stock part, put in the M3 part, basically plug&play. The rear subframe bushings are a bit harder to do, apparently some force is needed to squeeze them in. Due to the LSD that was being installed, the exhaust had to be lowered anyway, so that access to the bushings was provided for. An alignment was done afterwards (this is a must due to the different camber induced by the lower wishbones in the front!), but no complete KDS (there was not sufficient time).

Here are some photos of the installation so you see where at least part of the pieces ended up:







Comparison of stock and M3 subframe bushings:


Unfortunately, it proved somewhat difficult to install the sway bars: Pursuant to Birds, the M3 sway bars did not fit into the OEM endlinks, and the bushings for the sway bars that I provided supposedly did not fit either. For the rear sway bar, Birds therefore fabricated custom bushings by re-machining the OEM bushings; but they gave up on the front sway bar. Now, as several here on this forum have confirmed, everything does fit, even though it's a tight affair and you may have to apply some force to get everything in place. Fortunately for me, my local shop in Germany where I have had all my other modifications done, Daum Motorsport, managed to get the front sway bar installed. I must admit that I was somewhat disappointed with Birds over this (also because they charged me extra for the re-machining which I assume would not have been necessary), but am nevertheless glad it worked out in the end.

Improvements?
A) Suspension:
Now, let's come to the part that certainly is of most interest to you - how does it drive now? I held off with my review for some time as the weather was really bad and I wanted to spend some time on a race track - the famous Nürburgring - with the modifications to evaluate the changes properly. Here are two photos from the two days during the Easter week-end that I spent there:





Even though the weather was not ideal, I was able to get almost 15 laps done (around 300 km), and have also driven an additional 3000km on normal roads. Immediately upon taking delivery of my car from Birds, the change was very noticeable. The car felt much more planted, body roll in corners was substantially decreased, and it was much more responsive to any steering input. Although even in stock form I didn't have any serious complaint with the steering response (in particular compared to some other cars I've driven in the meantime…), the car felt much sharper, more awake when going round corners, and any slight change in radius was immediately transferred to the road. Combined with the active steering I have, it is really much more fun to drive now! Going around the 'Ring, the decrease in body roll was also noticeable, the car also felt much more stable at high speed cornering (there are some bends on the 'Ring where you are faster than 150 km/h). In general, you have the feeling that you are more connected to the car and, through it, to the road than before. There is less of a "filter" that delays your input and the car's feedback. It now feels more like a sportscar than it did before.

B) Limited slip differential:
The LSD was the most cost-intensive modification I had done so far on my car, and I was therefore quite curious to see whether it was worth the expense. First of all, it's completely noiseless, I could never hear any sound whatsoever coming from the differential, under any circumstance and load condition. I attribute this to the excellent install done by Birds.

As to driving - while driving normally, you don't feel anything different. But as soon as you push the throttle harder, there's no blinking christmas tree in the dashboard, no power cut off through the electronics, just acceleration pushing you into the seats. Under dry conditions, with good tires and off the race track, it's much more difficult than before to get the tires to spin - in a straight line, that's basically only possible in first gear or in second but at very high revs. The biggest difference can be felt in corners: Whereas before traction control cut power and the car hobbled around, now it just zooms along and you can feel how the torque is transferred to the outer wheel. It practically grips the road and pulls the car along, and long bends or motorway ramps are much, much more fun now. That's as it should have been as a factory car, in my opinion. I also believe it's safer to drive, as the situations where suddenly and unpredictably the DSC cuts your power and you're left with a car that doesn't accelerate as it should will be much less frequent.

Of course, the LSD can't defeat physics - when it's wet and the road slippery, wheelspin can still be induced easily, but that's to be expected with a 400+hp rear wheel drive car. However, wheelspin and traction control intrusions happen to a considerably lesser extent. I was able to experience that on the Nürburgring as it was mostly wet there last time - without an LSD, it would have been close to undriveable, with it I could still go quite fast around the corners, as long as I avoided second gear and full throttle in third.

Problems / disadvantages?
For the LSD, the price tag is probably the first deterrent for most people, at least if they lease their car. If it's your own car, however, it's definitely worth it and I would not consider the price performance ratio to be bad. For installation I would recommend a shop with experience, and that can sometimes be slightly difficult to find; in Germany, for instance, Evotech distributes and also installs Quaife differentials.

As far as the M3 suspension components are concerned, ride comfort will be slightly (and I mean slightly) decreased. This is due to less cushioning in the front, so that you'll get more feedback from the road through the steering wheel; also, the stiffer rear subframe bushings (and upper links + wishbones) lead to a firmer rear suspension, road imperfections will be felt a bit more than before. It's not much, though, comparable to switching from 18 inch tires to 19 inch tires. - Lastly, I also noticed that (probably a consequence of the stiffer sway bars and the LSD) if the rear end slides out, it does so less gradually than before and you have to react quickly, even with DSC turned on - but that usually only happens if you drive like you should only drive on the track, and then you're supposed to know what you're doing.

As a summary, I can say I'm very, very pleased with these modifications and they have transformed the car in a lot of ways. They contribute to my driving pleasure each time I drive a bit faster on curvy roads, and I can sincerely recommend both to anyone who's remotely interested in making his car quicker and more nimble. Thanks also to Tone and Charles for their invaluable advice and help. - Now I'm looking forward to seeing how the Bilstein B16 Ride Control coilover which is just being installed will further change the driving characteristics of my car!

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      04-27-2010, 08:47 AM   #2
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nice review man, a great read-through. i also have a quaife lsd and am more than happy with the performance change. goodluck with your 'new' car, and be careful! the acceleration can get a bit out of hand at point because you'll actually have traction in 2nd
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      04-27-2010, 09:11 AM   #3
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Awesome review, as always

I can affirm from first hand experience that the handling improvement can be felt even on a short trip, compared to my E92 with stock M sport suspension.
A short drive that made my "to do list" even longer...
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      04-27-2010, 09:16 AM   #4
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nice write up
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      04-27-2010, 09:47 AM   #5
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Compliments for your upgrade and review!
I'm very happy to hear that the path you have chosen works out that perfect.

I actually planned the same route, but instead of the Quaife I have chosen to give the Drexler a try. Drexler itself states that if men does not drive on a regular base on the track maintenance will be very low. They will prep the LSD with a 50/40 balance...

My plans are to do the following:

Turbo upgrade by Turbo Dynamics
AR 3" downpipes
Drexler LSD
M3 suspension parts on top the M sport suspension
Procede V4
AR OCC

And to finish I will have the car taped with matte black vinyl...

I was wondering if you could advice me on the following:

The M3 parts installation will be done by my dealer, the LSD by a specialist, should I ask the firm that is installing the LSD to also install the bushings? Or would I need to re-align after I have the bushings in place? I prefer to align after the M3 parts are fully in place.

Thanks,
René
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      04-27-2010, 10:01 AM   #6
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Quote:
Originally Posted by rismo123 View Post
I was wondering if you could advice me on the following:

The M3 parts installation will be done by my dealer, the LSD by a specialist, should I ask the firm that is installing the LSD to also install the bushings? Or would I need to re-align after I have the bushings in place? I prefer to align after the M3 parts are fully in place.

Thanks,
René
Thanks for your kind words!

As to your question: An alignment is only necessary after the installation of the front lower wishbones as they add 0.75 degrees of camber. You can install the rest (including the LSD and the bushings) without doing an alignment. However, as for installing the LSD you need to lower the exhaust anyway and work on the rear axle, I would suggest doing it all in one go, as I have done, to avoid duplicate work.

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      04-27-2010, 11:31 AM   #7
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Thanks for your advice I think you have a point there...which I will use for my

For my understanding, as I planned to import the parts from Harold... are all parts available by BMW?
I understood that some vendors offer "custom" made parts, but when I look at Harold shop and on your list, I do not see that back....

In that case it would be less complex to just order the parts as listed by you from BWM directly..

I can imagine that you drive around with a big smile at the moment... the ultimate 335...

Any idea when you will do the TD turbo upgrade?
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      04-28-2010, 07:40 AM   #8
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Quote:
Originally Posted by rismo123 View Post
For my understanding, as I planned to import the parts from Harold... are all parts available by BMW?
I understood that some vendors offer "custom" made parts, but when I look at Harold shop and on your list, I do not see that back....

In that case it would be less complex to just order the parts as listed by you from BWM directly..
I ordered them all from HP Autowerks in order to be sure to have everything I need, and also because I did not yet have all the correct part numbers at that time. However, you can also order them directly from your BMW dealership - in particular the sway bars as they will be too expensive to ship.
Quote:
Originally Posted by rismo123 View Post
I can imagine that you drive around with a big smile at the moment... the ultimate 335...

Any idea when you will do the TD turbo upgrade?
For the time I don't drive at all unfortunately as the car is in the garage to have the Bilstein B16 Ride Control coilover installed...but I should get it back on Friday at the latest. I'm in any case very happy with how it drives, that's for sure!

I'll do the TD stage 2 upgrade in a few months as my finances are somewhat depleted due to all the modifications done in the recent past. I'll have everything installed at Birds in the UK, together with a stronger clutch from Clutch Masters.

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      04-28-2010, 09:47 AM   #9
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For sure have the rear subframe bushings, LSD, and rear sway installed at the same time.

Springs and dampers will have a big effect. IMO having the M3 parts is very important if you are installing stiffer springs & dampers.

I waffled between getting M3 sways and just a 14mm rear for a while and settled for the 14. It works very well with the 'old' version of the BMW perf kit. Still a bit of understeer at the limit, but with the LSD power oversteer is easily modulated.
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      04-29-2010, 06:49 AM   #10
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Quote:
Originally Posted by rismo123 View Post
C
I actually planned the same route, but instead of the Quaife I have chosen to give the Drexler a try. Drexler itself states that if men does not drive on a regular base on the track maintenance will be very low. They will prep the LSD with a 50/40 balance...
Hi René

where will you have the Drexler LSD installed? Mine is currently being installed together with the bushings and the M3 Towerbrace (I already have KW clubsport ARB)

I got the same information about Drexler and am really looking forward to how is performs. Tomorrow Afternoon I will have me car back and can straight away test it on the Ring.

I really advice you to do the bushings, rear ARB and LSD together. The shop who is installing the LSD for sure can also do the ARB and Bushings.

Cheers
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      04-29-2010, 08:17 AM   #11
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this is what you can do with a 335i with the mods included in the review
Winter tyres on. Pro cart driver.

[u2b]<object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/x7IIy3r4gvQ&hl=en_GB&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/x7IIy3r4gvQ&hl=en_GB&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>[/u2b]
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      04-29-2010, 09:07 AM   #12
rismo
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< this is what you can do with a 335i with the mods included in the review
Winter tyres on. Pro cart driver. >

Briljant hahahah... so somebody is enjoying himself... with hands above the blanket... ;-)

@all,

Thanks for the advice regarding the order of installation. I will take you advice seriously and will have them install the rear sway, bushings and LSD at once... (Would it make sence to also install the front sway at that time?)

@stressdoc,

The 14mm sway, is that the one from the BMW M Suspension? If I understand you well, your advice would be not to use the rear M3 sway?

@Marcel,

The LSD will be installed by Morrtiz Autotuning (Involved in the GT4 cup in NL)
I have bought the LSD at KMP in Enschede... they are taking care for the Dutch import of Drexler.

The rest, including the installation of the upgrade turbo's and DP's will be done by BMW




@Alpine,

Although I'm almost always ordering from the sponsors on the board, I'm pretty sure that it would be more comfortable in this case to order with BMW directly, it will save time and lot's of import taxes...

Is your part list complete for an E92?

Again, especialy after watching Enrita's movie... this thing is going to be crazy... hopefully your suspension will be done soon so you can enjoy "The Ring" :-)

Maybe we should meet one day to have them all together on the ring.....
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      04-29-2010, 09:23 AM   #13
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Another amazing write-up! Great info and a pleasure to read!
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      04-29-2010, 09:36 AM   #14
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Quote:
Originally Posted by rismo123 View Post

@Marcel,

The LSD will be installed by Morrtiz Autotuning (Involved in the GT4 cup in NL)
I have bought the LSD at KMP in Enschede... they are taking care for the Dutch import of Drexler.

The rest, including the installation of the upgrade turbo's and DP's will be done by BMW

Maybe we should meet one day to have them all together on the ring.....
another Dutch guy
Interesting a dealer in Holland will install all the upgrades. I have Raeder motorsport in Germany doing the install. (of everything)
The are 5 minutes away from the Ring, so I can have a nice road to test the changes .

Ring meet sounds is always good. In the UK part trips are organized, the next one is in May.
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      04-29-2010, 11:49 AM   #15
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Quote:
Originally Posted by maxnix View Post
An excellent well written article that is a pleasure to read.

Hopefully some of the gang bangers will appreciate the clarity of your carefully considered articulation.
Quote:
Originally Posted by BoostedE90 View Post
Another amazing write-up! Great info and a pleasure to read!
Thank you for your feedback, greatly appreciated!

Quote:
Originally Posted by rismo123 View Post
@Alpina,

Although I'm almost always ordering from the sponsors on the board, I'm pretty sure that it would be more comfortable in this case to order with BMW directly, it will save time and lot's of import taxes...

Is your part list complete for an E92?
I do believe so, yes. To my knowledge, the parts for an E90 and E92 are identical, and my list should reflect all of the items that you will need.
Quote:
Originally Posted by rismo123 View Post
Again, especialy after watching Enrita's movie... this thing is going to be crazy... hopefully your suspension will be done soon so you can enjoy "The Ring" :-)

Maybe we should meet one day to have them all together on the ring.....
My suspension should be ready tomorrow! Hopefully along with the meth kit. I'll definitely come to the next UK 'Ring trip (22/23 May), so if you'd like to come too - feel free to join us! You'd be more than welcome.
Quote:
Originally Posted by marcel b View Post
I have Raeder motorsport in Germany doing the install. (of everything). They are 5 minutes away from the Ring, so I can have a nice road to test the changes .
Do Raeder have a dyno? I need one within short to test my GIAC stage 2 plus meth kit, and near the 'Ring would be ideal...


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Last edited by Alpina_B3_Lux; 04-29-2010 at 11:55 AM..
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      04-29-2010, 01:00 PM   #16
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Quote:
Originally Posted by Alpina_B3_Lux View Post
Thank you for your feedback, greatly appreciated!

I do believe so, yes. To my knowledge, the parts for an E90 and E92 are identical, and my list should reflect all of the items that you will need.
My suspension should be ready tomorrow! Hopefully along with the meth kit. I'll definitely come to the next UK 'Ring trip (22/23 May), so if you'd like to come too - feel free to join us! You'd be more than welcome.
Do Raeder have a dyno? I need one within short to test my GIAC stage 2 plus meth kit, and near the 'Ring would be ideal...


Alpina_B3_Lux
not that I know, at least not in their workshop. I will ask if they know about one nearby.

cheers
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      04-02-2012, 05:05 AM   #17
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I have installed in my e92 335i coupe the the rear M3 anti roll bar and they do not fit.
After installation the rear sway bar touches the body work below and makes noise.
It does make sense as the the rear sway bar is thicker.

Did anybody else encountered the same problem?
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      04-02-2012, 06:01 AM   #18
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Quote:
Originally Posted by gerritg View Post
I have installed in my e92 335i coupe the the rear M3 anti roll bar and they do not fit.
After installation the rear sway bar touches the body work below and makes noise.
It does make sense as the the rear sway bar is thicker.

Did anybody else encountered the same problem?
I can guarantee you that this is an installation error. I know lots of people - myself included - who have installed them without problem. Most of the time if there's a problem the ARB is installed upside-down.

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