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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > F30 BMw Performance Brakes on E90 front and rear



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      04-17-2014, 08:30 AM   #1
vwetish
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F30 BMw Performance Brakes on E90 front and rear

Here they are! Front and rear :-)
They still look small because the wheels are 19"









Yes, I know, car is dirty.
It is my daily driver and I'm probably the only person crazy enough to run these expensive wheels with winter tires all throughout Chicago winter.

Last edited by vwetish; 07-17-2014 at 02:24 PM.
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      04-17-2014, 08:39 AM   #2
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How did you even manage to fit the rears man? How do you find the performance of these over stockers? Huge improvement?
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      04-17-2014, 08:43 AM   #3
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So was this a direct swap? Any crazy modifications you had to do?
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      04-17-2014, 10:29 AM   #4
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I don't like them!

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Originally Posted by dx1541 View Post
How did you even manage to fit the rears man? How do you find the performance of these over stockers? Huge improvement?
I don't like them!
Too soft pedal, and no! bleeding the air isn't the issue.
You can make anything fit.
This isn't my first custom brake mod though.

Last edited by vwetish; 04-17-2014 at 10:51 AM.
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      04-17-2014, 10:35 AM   #5
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Quote:
Originally Posted by fravel View Post
So was this a direct swap? Any crazy modifications you had to do?
No, not a direct swap.
For the fronts is easy. Only the shield and the brake wear sensor needs to be modded.
For the rears however, is more complicated. The rotor fit but only the 335i but the caliper doesn't. Same with the shield and brake sensor.

Last edited by vwetish; 04-17-2014 at 10:51 AM.
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      04-17-2014, 10:48 AM   #6
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Garage List
More information would be useful.
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      04-17-2014, 11:13 AM   #7
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Don't go for it!

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Originally Posted by gtaccord View Post
More information would be useful.
Don't go for it!
That is the most useful information I can give you!
The kit is relatively inexpensive to buy and not really difficult to make it fit but unfortunately it lacks improvement in the performance department.
Only look cool.

Go for other kits!
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      04-17-2014, 11:30 AM   #8
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Dang! I was thinking of buying these earlier!
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      04-17-2014, 12:59 PM   #9
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I did something similar for my VW Paasat.
Even figure out how to work around the electric parking brake in the rear.
(long time ago, back in 2009)
I used Porsche (996) 911 calipers front and rear.
Let me tell you!
These brakes, although made by Brembo as well, are designed by Porsche and are light years better then the BMW ones.









Last edited by vwetish; 04-17-2014 at 01:05 PM.
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      04-17-2014, 02:28 PM   #10
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yeah, if the caliper piston areas aren't sized correctly, it can really affect the braking feel and performance of the brakes. Sounds like the F30 parts just don't match well to the E90 brake system.
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      04-17-2014, 02:35 PM   #11
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Quote:
Originally Posted by mike-y View Post
yeah, if the caliper piston areas aren't sized correctly, it can really affect the braking feel and performance of the brakes. Sounds like the F30 parts just don't match well to the E90 brake system.

I agree 100%
Another "flaw" with these is that they aren't progressive, meaning the pistons are all same size so the master cylinder attached to the brake pedal has to struggle to move them all at the same time with the same force.

I should have build myself a kit.

Last edited by vwetish; 04-18-2014 at 08:18 AM.
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      04-18-2014, 06:48 PM   #12
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On the F series you have to do some coding after you fit these. Maybe that is part of the issue
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      04-18-2014, 08:27 PM   #13
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are the front and rear rotors the same size as the E90's? Just probabaly get those when im due for new rotors.
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      04-21-2014, 07:34 AM   #14
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No, they are not!

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Originally Posted by lito View Post
are the front and rear rotors the same size as the E90's? Just probabaly get those when im due for new rotors.
They are not the same size.
Front is 370mm vs 345mm stock
Rear is 345mm vs 335mm stock
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      04-21-2014, 07:37 AM   #15
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No, coding has nothing to do with mushy pedal.

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Originally Posted by Rickygst View Post
On the F series you have to do some coding after you fit these. Maybe that is part of the issue

No, coding has nothing to do with mushy pedal.
Coding is only for the ABS thrash hold, to tell the ABS module when to lock up the brakes because they have different circumference (larger, hence rotate less).
That is all.
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      04-25-2014, 09:33 AM   #16
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Can U post some pic of the rear calipers fitment ?
Im very happy with the fronts
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      04-26-2014, 09:11 PM   #17
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Quote:
Originally Posted by Wlodi View Post
Can U post some pic of the rear calipers fitment ?
Im very happy with the fronts
Maybe they will work just fine with the fronts and not both front and rear. Care to share your experience with just the fronts?
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      04-28-2014, 04:56 PM   #18
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Quote:
Originally Posted by Wlodi View Post
Can U post some pic of the rear calipers fitment ?
Im very happy with the fronts
I don't have any more photos. Sorry.
The car will go on the lift at the end of May.
Possibly I can take photos then.
If you don't have lathe and don't have experience with mods like this I wouldn't recommend experimenting.

Last edited by vwetish; 07-07-2014 at 04:36 PM.
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      04-28-2014, 05:01 PM   #19
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Quote:
Originally Posted by dx1541 View Post
Maybe they will work just fine with the fronts and not both front and rear. Care to share your experience with just the fronts?

I don't know as I installed them all 4 at the same time.
Anyhow I don't think it will 100% with the front only either.
It will create more front brake bias.
Perhaps will help with the mushy brake pedal feel though.

Last edited by vwetish; 07-07-2014 at 04:37 PM.
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      07-29-2014, 03:17 PM   #20
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What do you needed to do with the lathe on the rear brake system? Did you cut down the outside diameter of the brake disc to make the caliper fit or what is the problem on the rear caliper fitment? I still try to get a rear brake update to my existing front brake update. The f30 system seem to be a good deal. I got lathe , cnc mill and other machinery to machine the brake system but i'm looking for some more detailed information "what" doesn't fit. I think i can get the caliper to fit but i dont want to buy the parts if the solution to make it fit is not "good" in the end. F.e. it would decrease the strenght of the caliper because i would have to cut excenter holes or do other things wich would be not good in terms of the strenght.
Can you give me/us a more detailed information what make the rear calipers didnt fit plug n play?

Regards Samy
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      07-29-2014, 03:32 PM   #21
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"it would decrease the strenght of the caliper because i would have to cut excenter holes or do other things wich would be not good in terms of the strenght"

You will have to do exactly that, both on the caliper and the hub, so from safety concerns this mod is not for you!

The rotor doesn't require any work what so ever.
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      07-29-2014, 04:17 PM   #22
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Thanks for the information, than i have to look for another radial mounted caliper and a custom bracket and use only the discs. Thanks
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