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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Robbing the e92 M3 for suspension parts



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      10-15-2008, 02:49 PM   #89
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Quote:
Originally Posted by HP Autowerks View Post
Because the 335i and the M3 uses a diff diameter bushing!
Thank you!
And how about the other questioins please?
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      10-15-2008, 05:16 PM   #90
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Quote:
Originally Posted by dArNeLLi View Post
...CENTER SUSPENSION
xxx (1hr)...

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      10-15-2008, 05:52 PM   #91
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Tension struts is about $128 @ X 1 hour labor. The rear subframe bushings at $40@ X 4 5-6 hours.

What would it do to the car's handling if I just change the front tension struts and leave out the rear sub frame bushing? Labor is too costly and time consuming.

Last edited by Josephkao; 10-15-2008 at 08:45 PM.
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      10-15-2008, 08:09 PM   #92
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Quote:
Originally Posted by Josephkao View Post
...What is CENTER SUSPENSION ? What is the part number are they
It's the springs in the drivers seat. Not sure this can be retrofit from the M3
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      10-15-2008, 08:14 PM   #93
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After installing the thrust arms(tension rods) is alignment needed???

Last edited by Josephkao; 10-15-2008 at 08:44 PM.
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      10-15-2008, 08:33 PM   #94
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workin for a automanufacturin (toyota), center susp is just a bolt on solid steel brace with a dampener for counter weight, yea probably not on the bmws...lol

i'll just edit it to save further discrepency, and it was an example, hah
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      10-15-2008, 09:03 PM   #95
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So, you guys that have ordered these parts from the dealer, what is the total?

Basically, what is the net savings over the Dinan kit?
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      10-15-2008, 09:07 PM   #96
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Quote:
Originally Posted by Josephkao View Post
After installing the thrust arms(tension rods) is alignment needed???
I have not taken apart the controls arms of an E9x yet, but every other BMW I have swapped this part on did not need an alignment.
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      10-15-2008, 09:19 PM   #97
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there are several other beefier arms from the m3 that can be swapped over as well.... i had a 335 and and m3 in the air and compared all the suspension components a few months ago when the m3 first came out... then i looked up the prices and said nevermind!! hahaha
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      10-15-2008, 09:19 PM   #98
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Quote:
Originally Posted by JeremyDS View Post
I have not taken apart the controls arms of an E9x yet, but every other BMW I have swapped this part on did not need an alignment.
At least somebody answered the question.
Now, do we have a consensus?
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      10-15-2008, 09:29 PM   #99
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Quote:
Originally Posted by 1clean335i View Post
there are several other beefier arms from the m3 that can be swapped over as well.... i had a 335 and and m3 in the air and compared all the suspension components a few months ago when the m3 first came out... then i looked up the prices and said nevermind!! hahaha
What are they? Please post since you have the parts # and price, it might help other members in the forum.
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      10-15-2008, 10:10 PM   #100
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Quote:
Originally Posted by Mr. 5 View Post
At least somebody answered the question.
Now, do we have a consensus?

You are replacing a suspension link that does not affect toe. Castor is not adjustable anyway, but should have minimum affect on its settings.
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      10-15-2008, 10:16 PM   #101
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Quote:
Originally Posted by HP Autowerks View Post
You are replacing a suspension link that does not affect toe. Castor is not adjustable anyway, but should have minimum affect on its settings.
Thank you very much for explaining.
It might sound like a dumb question to you, but I'm not too knowledgeable with what throws off the alignment and what needs to be adjusted to align a car.
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      10-15-2008, 10:38 PM   #102
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Quote:
Originally Posted by Mr. 5 View Post
Thank you very much for explaining.
It might sound like a dumb question to you, but I'm not too knowledgeable with what throws off the alignment and what needs to be adjusted to align a car.

If you are tracking the car, I would just have the alignment checked anyway.
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      10-15-2008, 10:42 PM   #103
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Quote:
Originally Posted by HP Autowerks View Post
You are replacing a suspension link that does not affect toe. Castor is not adjustable anyway, but should have minimum affect on its settings.
Harold, for the rear links, this one for sure- 33322283549 - it is good idea if you have Quaife and will reduce toe out under acceleration. That is were you should stop unless you load test the other two forward links for stiffness.

Spill the beens on what you checked out on the rear.

Orb
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      10-15-2008, 10:42 PM   #104
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Quote:
Originally Posted by HP Autowerks View Post
If you are tracking the car, I would just have the alignment checked anyway.
Yah, I guess it's better safe than sorry.
Or course, I had it done after I installed the suspension, but I wasn't sure about this.
I did look, and I was reading that in most cases, Castor is almost always not adjustable.
If the castor is off then that usually means that something is worn.
I'll see how the installation goes.
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      10-16-2008, 06:04 PM   #105
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If I just change the front tension struts and leave out the rear sub frame bushing, what would it do to the car's handling ?
I would save a lot of installation cost if I change them together with the shock and F/R sway bar. They are about 128 @ X 2.

Last edited by Josephkao; 10-16-2008 at 08:06 PM.
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      10-17-2008, 03:12 PM   #106
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Quote:
Originally Posted by LaYzEe View Post
is this the M3 strut bar you ordered?

Tischer has this on their specials page now
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      10-18-2008, 06:09 PM   #107
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Quote:
Originally Posted by Orb View Post
The e92 M3 has more than just a few parts that are similar to 335i. The bushing kit by Dinan is nothing more than a M3 kit and I saw the M3 logo on the bushing and part number laser etched on the control arms. You can buy the part for your dealer and below are the part numbers.

Front control arms:

LEFT TENSION STRUT WITH RUBBER MOUNTING 31102283575
RIGHT TENSION STRUT WITH RUBBER MOUNTING 31102283576


Rear sub-frame:

RUBBER MOUNTING FRONT 33312283382 - Qty 2
RUBBER MOUNTING REAR 33312283383 - Qty 2


FWI, the front suspension on e92 is identical with e92 M3, as well as, 90% of the rear suspension. You can literally bolt on an M3 suspension and brakes ect. The only real difference between between cars is the rear track width which is minor and a LSD. This should be of no real surprise.

I measure up the M3 strut bar today and it should fit so I order the parts ( http://www.realoem.com/bmw/showparts...61&hg=51&fg=75 ). This design is superior to any straight cross over bar from a mechanical stiffness point of view and much lighter. You need ever part of the RealOEM listed page and for item #6 you need the 12 mm bolt.

Orb
This is a great thread, Orb.

Please confirm: did you or did you not buy a set of 31102283579? Were they included with 31102283575 and 31102283576?

Part numbers from http://www.realoem.com/bmw/showparts...01&hg=31&fg=05

Thanks,
Rob
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      10-18-2008, 08:59 PM   #108
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Is this a trick question?
They are included.
Look at the same page that you posted and you will see that number 14 says "with rubber mounting"

If not, I have a question for you...
Who's barried in Grant's Tomb?
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      10-19-2008, 01:37 PM   #109
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Quote:
Originally Posted by Mr. 5 View Post
Is this a trick question?
They are included.
Look at the same page that you posted and you will see that number 14 says "with rubber mounting"
I saw this, but thought that I'd like to confirm with someone who has one in his hands. Sorry to trouble you with this.

Quote:
If not, I have a question for you...
Who's barried in Grant's Tomb?
What is "barried"?

-Rob
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      10-19-2008, 02:15 PM   #110
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Quote:
Originally Posted by rwalker View Post
I saw this, but thought that I'd like to confirm with someone who has one in his hands. Sorry to trouble you with this.



What is "barried"?

-Rob
No worries man. I was just having some fun, but now you know how bad my spelling is.
buried.
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