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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 > Quaife LSD & VAC Motorsports **Full Review/DIY**



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      03-24-2010, 08:25 AM   #23
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Great write-up FBIS. Also reflects my own thoughts about the Quaife diff since I got it a few weeks back. And now the weather's improving, summer tires to be thrown on and I can finally get it tested properly!

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      03-24-2010, 09:11 AM   #24
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great write up as always bro....
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      03-24-2010, 10:15 AM   #25
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Do you think we would have any issues running the OEM BMW Rear Axle Fluid (SAF-XJ + FM Booster) that the E46 M3 Runs? I ran this fluid in my M3. It's a long life fluid, i rather not be changing redline every 15k? Thoughts?

-Joe
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      03-24-2010, 05:37 PM   #26
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Quote:
Originally Posted by Former_Boosted_IS View Post
I know BMW is not known for drifting, but you are right that the car is really driftable with the LSD!
Can somebody explain to me how the LSD helps with drifting? I don't really understand the way this works. I can understand how it provides more traction but surely when you're drifting you've got no traction!

Cheers

Jack
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      03-24-2010, 09:35 PM   #27
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another one down

your writeup sorta discouraging me to do any writeup in the future
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      03-24-2010, 09:50 PM   #28
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nice write up..
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      03-24-2010, 10:10 PM   #29
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Awesome! VAC kicks ass. Ask them about the e92 m3 subframe I destroyed
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      03-25-2010, 09:53 AM   #30
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Quote:
Originally Posted by Renus View Post
Owesome writing, cheers~~ ^ ^
Renus, I am glad you enjoyed the writeup!

Quote:
Originally Posted by Alpina_B3_Lux View Post
Great write-up FBIS. Also reflects my own thoughts about the Quaife diff since I got it a few weeks back. And now the weather's improving, summer tires to be thrown on and I can finally get it tested properly!

Alpina_B3_Lux
Alpina, I am looking forward to hearing your thoughts. When do you hope to get the car back in performance mode?

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great write up as always bro....
Thank you Craig.
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      03-25-2010, 09:55 AM   #31
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Quote:
Originally Posted by SeattleE90 View Post
Do you think we would have any issues running the OEM BMW Rear Axle Fluid (SAF-XJ + FM Booster) that the E46 M3 Runs? I ran this fluid in my M3. It's a long life fluid, i rather not be changing redline every 15k? Thoughts?

-Joe
Joe, I simply went by the recommendations from Bird's Auto and VAC. I am definitely not the expert on that.

Quote:
Originally Posted by FazerBoy View Post
Can somebody explain to me how the LSD helps with drifting? I don't really understand the way this works. I can understand how it provides more traction but surely when you're drifting you've got no traction!

Cheers

Jack
FazerBoy, when one tire spins the rear kicks out of control and that means you cannot successfully counter steer it always. When you have both tires spinning then the "slide" is controllable and if you choose to encourage it then you can drift.
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      03-25-2010, 09:56 AM   #32
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Quote:
Originally Posted by hun77777 View Post
another one down

your writeup sorta discouraging me to do any writeup in the future
hun, don't tell me that! The point is just to get a lot of opinions on the forum to help everyone make decisions.

Quote:
Originally Posted by D'z View Post
nice write up..
D'z, thank you for the kind words.

Quote:
Originally Posted by dmurray14 View Post
Awesome! VAC kicks ass. Ask them about the e92 m3 subframe I destroyed
Lol, what did you do?
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      03-25-2010, 10:00 AM   #33
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I thought most places didn't accept the "welded" rear diff as a core! I know places like Turner Motorsport doesn't! Is this write-up indicating that VAC Motorsport DOES accept the welded diff as a refundable core?
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      03-25-2010, 12:01 PM   #34
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Quote:
Originally Posted by Former_Boosted_IS View Post
hun, don't tell me that! The point is just to get a lot of opinions on the forum to help everyone make decisions.



D'z, thank you for the kind words.



Lol, what did you do?


if u dont mind me asking...how much did u pay to get yours installed?..u can just PM me
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      03-25-2010, 12:45 PM   #35
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Quote:
Originally Posted by Former_Boosted_IS View Post
Alpina, I am looking forward to hearing your thoughts. When do you hope to get the car back in performance mode?
Well, first of all my car is de-tuned right now because I had to get rid of my Evotech flash to make way for the GIAC stage 2. The latter however couldn't be installed as it took too much time to reprogram the ECU (due to the latest ISTA/P-version I had got previously and which apparently complicated things quite a bit) and I had to get back to Europe (from UK where it should have been done) before the flash could be done. So now I'm first of all waiting for the flash which I might get next week (depending on the travelling availability of the GIAC distributor in the UK). Driving stock sucks

Then my summer tires will be mounted next Thursday; before that, if all goes well, my Bilstein suspension could be installed at the beginning of next week, but I'm still waiting on the confirmation from my install shop time-wise.

Then I hope all will be ready for the real try-out on the Nürburgring on the Easter week-end. I intend to do a write-up of all my mods that I haven't reviewed yet after that experience, as I think only such a track can really give me the feedback I need - on public roads that's a bit tricky...

Alpina_B3_Lux
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      03-25-2010, 03:51 PM   #36
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Quote:
Originally Posted by Former_Boosted_IS View Post
hun, don't tell me that! The point is just to get a lot of opinions on the forum to help everyone make decisions.



D'z, thank you for the kind words.



Lol, what did you do?
AA tune on the m3, launch control used a few too many times....ripped the diff right out of the subframe mounts, grenaded the bearings, dented up the subframe. If you look for the aluminum e92 diff mounts on the site, the pic they have on there is from the m3
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      03-25-2010, 04:03 PM   #37
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King of reviews and installations!! WOW another epic post!
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      03-25-2010, 04:22 PM   #38
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Awesome review! Happy I went with the Quaife too
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      03-25-2010, 04:28 PM   #39
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For those that have asked about pricing, VAC just put up a special page for this. Take a look if you are interested.

http://store.nexternal.com/vacmotors...als-p2324.aspx
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      03-25-2010, 04:30 PM   #40
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Quote:
Originally Posted by Wosby View Post
I thought most places didn't accept the "welded" rear diff as a core! I know places like Turner Motorsport doesn't! Is this write-up indicating that VAC Motorsport DOES accept the welded diff as a refundable core?
I posted a link at the beginning of the thread. I hope this can help clarify this.
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      03-25-2010, 04:38 PM   #41
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Quote:
Originally Posted by Alpina_B3_Lux View Post
Well, first of all my car is de-tuned right now because I had to get rid of my Evotech flash to make way for the GIAC stage 2. The latter however couldn't be installed as it took too much time to reprogram the ECU (due to the latest ISTA/P-version I had got previously and which apparently complicated things quite a bit) and I had to get back to Europe (from UK where it should have been done) before the flash could be done. So now I'm first of all waiting for the flash which I might get next week (depending on the travelling availability of the GIAC distributor in the UK). Driving stock sucks

Then my summer tires will be mounted next Thursday; before that, if all goes well, my Bilstein suspension could be installed at the beginning of next week, but I'm still waiting on the confirmation from my install shop time-wise.

Then I hope all will be ready for the real try-out on the Nürburgring on the Easter week-end. I intend to do a write-up of all my mods that I haven't reviewed yet after that experience, as I think only such a track can really give me the feedback I need - on public roads that's a bit tricky...

Alpina_B3_Lux
I am looking forward to reading your thoughts! Hopefully the shop can get it you as quick as possible. Waiting with mods in the garage is painful!
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      03-25-2010, 04:41 PM   #42
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Quote:
Originally Posted by cn555ic View Post
King of reviews and installations!! WOW another epic post!
Lol, thank you cn555ic.

Quote:
Originally Posted by dlbrooks18 View Post
Awesome review! Happy I went with the Quaife too
dlbrooks, I am glad you enjoyed it and took the time to read it. LOL! I agree that the Quaife is a fantastic LSD!
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      07-06-2010, 11:40 PM   #43
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Thanks for the excellent write up, FBIS.

I am ordering the Quaife LSD tomorrow. I have the welded ring, so I have to get the complete final drive (pumpkin and all), which will add to the cost. Will make for a much easier install, though.

Anyhow, looking forward to getting it on.
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      07-07-2010, 04:33 AM   #44
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Quote:
Originally Posted by Marcus-SanDiego View Post
Thanks for the excellent write up, FBIS.

I am ordering the Quaife LSD tomorrow. I have the welded ring, so I have to get the complete final drive (pumpkin and all), which will add to the cost. Will make for a much easier install, though.

Anyhow, looking forward to getting it on.
Marcus, thanks for the kind words! Getting the pumkin makes the install so much easier. I think it can be swapped in around 2 - 3 hours most if you have all the needed tools and items on hand. Let me know how it goes!
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