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      01-16-2016, 10:05 PM   #1
justpete
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135i rear brakes on 2011 328i

Pretty sure this was discussed some time back but can't find it, search-fu sucks, sorry for bringing it up again.

It'd be a decent setup with floating lightweight rotors and fixed calipers running XP10 pads, I think. It's the floating rotors I'd like to get changed over to and it doesn't really matter if the e-brake works or not although it won't pass safety inspection without it.

I tried to get RacingBrake to come up with a solution for the rear brakes but they passed, for any amount of money apparently. Not seeing any good quality solutions out there but am asking PowerBrake if they can do it or have something they can put together to meet the requirements.

If anybody can help with other potential sources that'd be great. TIA.
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      01-16-2016, 10:56 PM   #2
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http://www.e90post.com/forums/showthread.php?t=587946
http://www.e90post.com/forums/showthread.php?t=604481
http://www.e90post.com/forums/showthread.php?t=399398

http://www.e90post.com/forums/showth...=399398&page=3
See post 52 & 53
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      01-16-2016, 11:12 PM   #3
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Thanks but these are all for putting 335i brakes on a 328i, I already have 135i front brakes and access to 135i rear calipers (fixed, not sliding) for pennies on the dollar so all that's missing are floating, light weight rotors that'll work. Performance Brake has a 325x28 rear rotor that works on the 2011 328i with their caliper but is very close to the stock 135i rear rotor at 324x22 and it has the correct drum diameter. Can't remember if the 135i rear caliper has the same offset as the 328i caliper...
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      01-17-2016, 04:56 AM   #4
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I have 135i rear brake calipers. However, calipers will fit on the wheel carrier but 328i discs are 300x20 and you need 336x22 for the calipers. Problem is that 135i discs will not fit on 328i hub. You need 330i discs and 330i hand brakes.
I ended up buying used 335i wheel carriers and half shafts, new wheel bearings, brake shoes and ABS sensors. It was PITA but it works.
BTW: Iím using BMW performance rear discs part No. 34216795755
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      01-17-2016, 09:19 AM   #5
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Yeah I was looking at the BMW performance brakes(basically 135 brakes) yesterday and it said the rears wouldn't fit the 325 or 328, then i started searching for why and apparently it's just because the 330 parking brake is different than the others. So what would you need in order to do the swap?
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      01-17-2016, 10:31 AM   #6
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135i disc doesn’t fit on 325/328 hub. 135 hub doesn’t fit on 325/328 wheel carrier. For the swap you need 330/335 wheel carrier, hub, hand brake shoes, half shafts, ABS sensors.
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      01-17-2016, 12:09 PM   #7
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Originally Posted by BudVlad View Post
I have 135i rear brake calipers. However, calipers will fit on the wheel carrier but 328i discs are 300x20 and you need 336x22 for the calipers. Problem is that 135i discs will not fit on 328i hub. You need 330i discs and 330i hand brakes.
I ended up buying used 335i wheel carriers and half shafts, new wheel bearings, brake shoes and ABS sensors. It was PITA but it works.
BTW: Iím using BMW performance rear discs part No. 34216795755
Oh. Didn't know that at all, thanks!! So the BMW Performance rotor turns out to be the same size as the 135i rear rotor. Since the front BMW Performance rotor turned out to be the same as the front 135i rotor it shoulda been obvious. D'Oh!

So if I want to find a floating rotor for use with the 135i rear caliper I need one that fits a 330i. Well, that was simple. You da man!
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      01-17-2016, 12:18 PM   #8
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Quote:
Originally Posted by BudVlad View Post
135i disc doesnít fit on 325/328 hub. 135 hub doesnít fit on 325/328 wheel carrier. For the swap you need 330/335 wheel carrier, hub, hand brake shoes, half shafts, ABS sensors.
Shouldn't be too bad if the parts are available used, I guess. Will be checking on this shortly to get a handle on the cost. The car's already on the lift, the diff is out, and the rear wheels have to come out for the rear brake cooling duct work to be built up so the differential labor shouldn't be all that much. It'll just be parts cost. But I really gotta find lightweight floating rotors that'll drop in to the 135i without modification to see if it's absolutely worth it.

Thanks very much.
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      01-17-2016, 12:43 PM   #9
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Quote:
Originally Posted by justpete View Post
Shouldn't be too bad if the parts are available used, I guess. Will be checking on this shortly to get a handle on the cost. The car's already on the lift, the diff is out, and the rear wheels have to come out for the rear brake cooling duct work to be built up so the differential labor shouldn't be all that much. It'll just be parts cost. But I really gotta find lightweight floating rotors that'll drop in to the 135i without modification to see if it's absolutely worth it.

Thanks very much.
Yeah keep me updated on the costs please for all the 330/335 parts that need to be used if you decided to explore that option. I'd like to get the BMW performance or the 135 I brakes and you can't just do the fronts you gotta have symmetry!
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      01-17-2016, 01:30 PM   #10
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Originally Posted by Dan Bilzerian View Post
Yeah keep me updated on the costs please for all the 330/335 parts that need to be used if you decided to explore that option. I'd like to get the BMW performance or the 135 I brakes and you can't just do the fronts you gotta have symmetry!
Will do. Hoping to find a donor car for the parts. Have decided to change over to an M3 spring arm and have the shocks rebuilt for it. Pretty sure the RE/Aurora toe arms can be reused with the 330i/335i wheel carriers. About the only extra labor over the state the car is in now is to put spring compressors on to swap the arms, other than removing the shocks and swapping the parts. Not like it has to start from scratch.

Will probably change to the RacingBrake floating rotors for the 135i, front and rear, and then change out from Carbotech XP10 to something RB says is acceptable. Since the shop's new ridealong trackday car is a 135i with stock brakes they'll likely swap the few axles of pre-bedded XP10 pads I have for labor costs so it's not that big a loss as I already have the RB front floating rotors.
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      01-17-2016, 02:07 PM   #11
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I have M3 suspension front and rear with Bilstain B16s. Rear is no problem but front M3 shock is thicker and the bottom part had to be modified on lathe.
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      01-17-2016, 02:18 PM   #12
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Quote:
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I have M3 suspension front and rear with Bilstain B16s. Rear is no problem but front M3 shock is thicker and the bottom part had to be modified on lathe.
OK, understood. I just verified with the shop that the HVT rear shock will work with the M3 arm, the HVT strut up front is good with the existing stock wheel carriers so no changes there.
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      01-18-2016, 06:04 PM   #13
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Quote:
Originally Posted by justpete View Post
Will do. Hoping to find a donor car for the parts. Have decided to change over to an M3 spring arm and have the shocks rebuilt for it. Pretty sure the RE/Aurora toe arms can be reused with the 330i/335i wheel carriers. About the only extra labor over the state the car is in now is to put spring compressors on to swap the arms, other than removing the shocks and swapping the parts. Not like it has to start from scratch.

Will probably change to the RacingBrake floating rotors for the 135i, front and rear, and then change out from Carbotech XP10 to something RB says is acceptable. Since the shop's new ridealong trackday car is a 135i with stock brakes they'll likely swap the few axles of pre-bedded XP10 pads I have for labor costs so it's not that big a loss as I already have the RB front floating rotors.
Hey, I was looking on GetBMWparts and I think all the rear parts needed can also be found on E91 328i, and a E93 328i. I'll give you the link but that's what it's implying.

http://www.getbmwparts.com/partlocat...catalogid=4462
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      01-18-2016, 07:06 PM   #14
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Quote:
Originally Posted by Dan Bilzerian View Post
Hey, I was looking on GetBMWparts and I think all the rear parts needed can also be found on E91 328i, and a E93 328i. I'll give you the link but that's what it's implying.

http://www.getbmwparts.com/partlocat...catalogid=4462
The link didn't work, sorry. I did find a file I made back in early 12 where I detailed the part numbers between e91/92/90/93 for the rear brakes. Looks like the e91/93 as you say are the parts of interest and I'd listed them from the RealOEM e91 pages. The doc has the e91 and e90 parts listed but I guess that's as far as I got for some reason.

The differences indicate the following part numbers would be needed to change the rear brakes over to 135i/330i rotors - the output shafts would be remfg according to RealOEM

ebrake supporting ring (2)..34216771430 D=185mm
protection plate, left...........34216792247
protection plate, right.........34216792248
repair kit springs (2)..........34410410825
adjusting screw (2)............34416851437
wheel carrier, left..............33326783667
wheel carrier, right............33326783668
output shaft, left................33207580945
output shaft, right..............33207580946
drive flange hub (2)...........33416783671
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      01-18-2016, 07:14 PM   #15
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Quote:
Originally Posted by Dan Bilzerian View Post
Hey, I was looking on GetBMWparts and I think all the rear parts needed can also be found on E91 328i, and a E93 328i. I'll give you the link but that's what it's implying.
Added all the parts from my previous reply and got $2370.20 with $100 core. A tad pricey as it won't include the 135i rear calipers, pads, or rotors.

Checked the RacingBrake lightweight two piece rear rotors for the 135i and discovered I'd forgotten they can't use stock pad as the annulus requires 5mm be removed from the inner diameter of the pad. They sell modified or custom made pads, whatever. Not a great solution though.
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      01-18-2016, 07:30 PM   #16
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Quote:
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Added all the parts from my previous reply and got $2370.20 with $100 core. A tad pricey as it won't include the 135i rear calipers, pads, or rotors.

Checked the RacingBrake lightweight two piece rear rotors for the 135i and discovered I'd forgotten they can't use stock pad as the annulus requires 5mm be removed from the inner diameter of the pad. They sell modified or custom made pads, whatever. Not a great solution though.
It's those damn Wheel carrier hubs! Although the axle shafts aren't cheap either. Those are all new parts of course so if we can find them used it'd be probably a third of the price or less who knows. At least there's we know now that the e91 and e93 have the parts.

I wonder if they make a two piece rotor that doesn't require you to change that stock pad for the 135i. Yeah I definitely wouldn't go that route if I were you. Having to buy custom pads or shave your pads down every time you have to change them would suck
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      01-18-2016, 08:46 PM   #17
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Quote:
Originally Posted by Dan Bilzerian View Post
It's those damn Wheel carrier hubs! Although the axle shafts aren't cheap either. Those are all new parts of course so if we can find them used it'd be probably a third of the price or less who knows. At least there's we know now that the e91 and e93 have the parts.

I wonder if they make a two piece rotor that doesn't require you to change that stock pad for the 135i. Yeah I definitely wouldn't go that route if I were you. Having to buy custom pads or shave your pads down every time you have to change them would suck
They are expensive alright. Not sure I'd want used parts though for those or the halfshafts which makes the total amount pretty much what it's going to cost if I do this. The parts numbers are only those that are different, they don't include the bearings, clips, lock washer, cone nut, etc.

The only reason to do this is to get fixed calipers and floating rotors at less cost than a BBK. Of course rear BBK on these cars is kinda pointless but after bumping the engine up and cutting the weight, that's arguable afaic. Having to go with custom pads pretty much kills the deal, that and the 135i rear floating rotors are close to $900 a pair.

Don't know of any other two piece rotors but have pinged Powerbrake to see if they have something close.
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      01-18-2016, 08:50 PM   #18
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Quote:
Originally Posted by Dan Bilzerian View Post
It's those damn Wheel carrier hubs! Although the axle shafts aren't cheap either. Those are all new parts of course so if we can find them used it'd be probably a third of the price or less who knows. At least there's we know now that the e91 and e93 have the parts.

I wonder if they make a two piece rotor that doesn't require you to change that stock pad for the 135i. Yeah I definitely wouldn't go that route if I were you. Having to buy custom pads or shave your pads down every time you have to change them would suck
And the total is $2566.72 with those parts added on. Not exactly all that economic.
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      01-18-2016, 09:46 PM   #19
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FYI, the total cost including calipers and rotors (non BMW Performance) along with all the pesky little parts comes to $3,798.48 at getbmwparts.com as the stock calipers are $461.42 while the BMW Performance calipers are $240. What's up with that?
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      01-18-2016, 11:40 PM   #20
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Correction

The changeover to e91/e93 rear axle would only allow using a BMW Performance rear rotor for the e91/e93 with the transplanted 135i rear caliper. Can't really use the 135i rotor as-is. Could have Stoptech use the correct offset hat (which they have) and a 135i rotor ring and then fabricate a bracket to radially relocate the 135i caliper. But neither approach is worth the cost.
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      01-19-2016, 11:57 AM   #21
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For e9x You will need F10 528i rear rotors(two peace floating aluminum hat), grind off F10 lip OR cut/bend/damage the e9x rear dust shield, and some 1-2 mm washers to space the caliper onto rotor.
As per: http://www.e90post.com/forums/showthread.php?t=819548

Alternative is to use e46 rear floating CSL rotors and maybe a 5mm washers to center the rotor and caliper with longer bolts
As per my compilation thread: http://www.1addicts.com/forums/showthread.php?t=975919
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128i Sport 6MT converted to Euro 130i spec, 3.73 diff, tuned by evolve ~220 whp 207 wtq(ft-lb) SAE
In-progress: //M front arm, M3 rack, e36M lip Wishlist: Coils, n55 mnts, headers, LSD, e60 finn diff


"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is

Last edited by andrey_gta; 01-19-2016 at 12:03 PM.
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      01-19-2016, 09:32 PM   #22
justpete
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Drives: '11 328i '16 550i
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2011 BMW 328i  [5.00]
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Quote:
Originally Posted by andrey_gta View Post
For e9x You will need F10 528i rear rotors(two peace floating aluminum hat), grind off F10 lip OR cut/bend/damage the e9x rear dust shield, and some 1-2 mm washers to space the caliper onto rotor.
As per: http://www.e90post.com/forums/showthread.php?t=819548

Alternative is to use e46 rear floating CSL rotors and maybe a 5mm washers to center the rotor and caliper with longer bolts
As per my compilation thread: http://www.1addicts.com/forums/showthread.php?t=975919
Thanks, those are the threads I was thinking of. Still not absolutely following if a) the 135i rear caliper bolts up to the LCI e90 rear wheel carrier, b) there's a 324x22 rotor that fits the LCI e90 hub with the correct 160mm parking brake drum diameter, and c) has the correct offset so that it can fit in the caliper with or without a bit of a spacer. Looks like all the threads are discussing e91/e93/e82, etc. but not LCI e90. Then again I'm an idiot so could just be completely misunderstanding the whole thing. :/
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2011 E90 328i ZSP 6MT, BMW Aero, CF hood/boot, PI+CAI+RM+3IM+AA, SS+CI528+ThermoTec+PE, AKG eng, UUC trans, Delrin diff/RS, CM 850, UCP, CAE shftr, AKG DSSR, PG 3.91 30/60 LSD+BW cooler, C&R, Setrab, Accusump, AST 3-way+Swift, M3 arms/links, Aurora PR+BW sphericals, Vorshlag CPs, M3 brace+UR bar, ARC-8 18x8.5, 255 R1R, RB/CSL rotors, 135i calipers, RS29, RT700, Safecraft, OMP HTE-R+804F+QD Superquadro, 4pt roll bar, Braille, RT DL1Mk3
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