What did you do to/for your 1er today?

djacinto · 03-14-2023, 01:00 PM

Quote:

Originally Posted by suspenceful

Rescued it from a junkyard after sitting for 8 years, lol.

https://www.youtube.com/watch?v=jtUUqjgeh5E

Whoa! Didn’t realize you were on the forums!!
Just watched that video, super excited to see where it goes!! Been following you for a while my man

N55135i · 03-14-2023, 06:05 PM

Removed the nubz from the stock Brembos then painted the exposed part with A52 Space Grey to match the rest of the caliper. Together they weigh 3lbs & serve zero purpose IMO. All you need is a hex key to undo the screws. You can actually feel the reduced unsprung weight. My second time doing this to a pair of 135i brembo brakes. Will get better clean picture in the daylight when I can. Also charged car battery with Eufab via the engine bay terminals because I had it in the garage for weeks, started right up. Cant see where the date is but I suspect it's the original 2011.

tjswarbrick · 03-14-2023, 06:56 PM

Quote:

Originally Posted by N55135i

Removed the nubz from the stock Brembos then painted the exposed part with A52 Space Grey to match the rest of the caliper. Together they weigh 3lbs & serve zero purpose IMO. All you need is a hex key to undo the screws. You can actually feel the reduced unsprung weight. My second time doing this to a pair of 135i brembo brakes. Will get better clean picture in the daylight when I can. Also charged car battery with Eufab via the engine bay terminals because I had it in the garage for weeks, started right up. Cant see where the date is but I suspect it's the original 2011.

Those don't help with heat dissipation? Or keeping debris away from the pads?
Calipers do look slick without them.

Donkeyshins · 03-14-2023, 10:05 PM

Quote:

Originally Posted by tjswarbrick

Those don't help with heat dissipation? Or keeping debris away from the pads?
Calipers do look slick without them.

Suprgnat did the same with his BMW Performance Brakes on his 128i, I don't believe he's had any issues with debris or heat dissipation, although it'd probably be best to let him speak for himself on his experiences with this mod.

N55135i · 03-15-2023, 11:17 AM

Removed the nubbiez from the Brembos, heres better picture with some daylight. Happy with results, less weight, no apparent downsides

mkeiser · 03-15-2023, 11:22 AM

I'd have to imagine there's at least some reason they were engineered/designed to be on there...

Fishee · 03-15-2023, 01:46 PM

Quote:

Originally Posted by N55135i

Removed the nubz from the stock Brembos then painted the exposed part with A52 Space Grey to match the rest of the caliper. Together they weigh 3lbs & serve zero purpose IMO. All you need is a hex key to undo the screws. You can actually feel the reduced unsprung weight. My second time doing this to a pair of 135i brembo brakes. Will get better clean picture in the daylight when I can. Also charged car battery with Eufab via the engine bay terminals because I had it in the garage for weeks, started right up. Cant see where the date is but I suspect it's the original 2011.

The calipers are space grey?!
For real?

If so that’s great for touch up paint.

WrathOTM · 03-15-2023, 11:32 PM

Finally got a 2011 coupe brochure. With my old lexus I got both a Lexus US brochure and a JDM Toyota Aristo brochure like days after picking up my GS. So I'm ashamed that it took so long to get a 1er brochure.

Since y'all are talking about the 6-pot brakes. I did notice a pic in the brochure that depicts the performance brakes with their little nubs removed.

Suprgnat · 03-16-2023, 01:16 PM

Quote:

Originally Posted by Donkeyshins

Suprgnat did the same with his BMW Performance Brakes on his 128i, I don't believe he's had any issues with debris or heat dissipation, although it'd probably be best to let him speak for himself on his experiences with this mod.

It's been three years without issue.

scratchgolf135 · 03-16-2023, 01:29 PM

I'm gonna follow suit on this. No other performance calipers have these so why would they be necessary. Likely just for aesthetics.

twinturbovan · 03-16-2023, 01:34 PM

A short video clip of my cars build process. New wing, new race car livery. Cant wait for it to put my new track spec ARC-8s and my Splitter!

https://youtube.com/shorts/vBr9UeztdXs?feature=share

Fishee · 03-16-2023, 01:35 PM

Had dings removed.

Ric in RVA · 03-16-2023, 01:59 PM

Quote:

Originally Posted by scratchgolf135

I'm gonna follow suit on this. No other performance calipers have these so why would they be necessary. Likely just for aesthetics.

My guess is that it changes the resonant frequency of the system and eliminates squeal.

Other than that I see NO reason why.

Maybe a heat sink but that seems silly.

Donkeyshins · 03-16-2023, 02:07 PM

My thought is maybe it was added for additional heatsinking or for some sort of harmonic dampening to prevent brake squeal / noise, but yeah, it's a lot of extra sprung weight per wheel with (apparently) very little downside for removal.

[EDIT: Ric in RVA beat me to the punch]

scratchgolf135 · 03-16-2023, 02:07 PM

Good guess. If so, I don’t care about some squeal. I’m trying to shave every ounce and I’ve already gone two piece rotors so this would be a nice additional unsprung savings. With that and the forged wheels I’m saving 14lbs on each front corner.

Fishee · 03-16-2023, 02:13 PM

Quote:

Originally Posted by Ric in RVA

My guess is that it changes the resonant frequency of the system and eliminates squeal.

Other than that I see NO reason why.

Maybe a heat sink but that seems silly.

Tend to agree. Acoustic dampening, most likely.
Some aid in heat dissipation as well, likely.

WrathOTM · 03-16-2023, 03:34 PM

I would like to add one more pic. I think they were arguing over this. Methinks the engineers at BMW had a similar discussion regarding future models, and they came to the conclusion that it did nothing or very little, given that I have not seen any other hooves/knubs on any other calipers.
Anyone ever see 300zx or R32 front calipers? Those had pronounced cooling fins on them but disappeared after the mid 90s from presumably better pad formulations and brake fluid did more for performance

scratchgolf135 · 03-16-2023, 06:15 PM

Done. Don’t mind the rust, it’s been parked for over a year.

Blau · 03-16-2023, 07:43 PM

I replaced the plastic intake piece with the accordion that goes into the intake box. I noticed some tears so I ordered up a new one.

scratchgolf135 · 03-16-2023, 08:13 PM

Yea, not gonna spray the face of an expensive rotor though. Rust will be gone in a hurry in a few months when the build is done. 😎

JoeH128 · 03-16-2023, 10:02 PM

PCV valve replaced by dealer under SULEV warranty at 101,858 mi.

ornicar · 03-17-2023, 12:52 AM

Quote:

Originally Posted by Ric in RVA

My guess is that it changes the resonant frequency of the system and eliminates squeal.

Other than that I see NO reason why.

Maybe a heat sink but that seems silly.

+1 for the resonance theory. the weight of these X2 masses and screws is ~= to the weight of the steel caliper bracket.

03-14-2023, 06:05 PM	#18394
N55135i Private 269 Rep 99 Posts Drives: E82 135i N55 6MT Join Date: Feb 2020 Location: Safe Space iTrader: (0) Garage List 2011 E82 135i N55 [10.00] 2008 Fiesta [0.00]	Removed the nubz from the stock Brembos then painted the exposed part with A52 Space Grey to match the rest of the caliper. Together they weigh 3lbs & serve zero purpose IMO. All you need is a hex key to undo the screws. You can actually feel the reduced unsprung weight. My second time doing this to a pair of 135i brembo brakes. Will get better clean picture in the daylight when I can. Also charged car battery with Eufab via the engine bay terminals because I had it in the garage for weeks, started right up. Cant see where the date is but I suspect it's the original 2011. Attached Images Last edited by N55135i; 03-15-2023 at 01:07 PM..
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03-15-2023, 11:17 AM	#18397
N55135i Private 269 Rep 99 Posts Drives: E82 135i N55 6MT Join Date: Feb 2020 Location: Safe Space iTrader: (0) Garage List 2011 E82 135i N55 [10.00] 2008 Fiesta [0.00]	Removed the nubbiez from the Brembos, heres better picture with some daylight. Happy with results, less weight, no apparent downsides Attached Images Last edited by N55135i; 03-26-2023 at 05:55 PM..
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03-15-2023, 11:22 AM	#18398
mkeiser Second Lieutenant 439 Rep 286 Posts Drives: e82 128i 6mt m sport Join Date: Jan 2022 Location: Minneapolis, MN iTrader: (0)	I'd have to imagine there's at least some reason they were engineered/designed to be on there...
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03-15-2023, 11:32 PM	#18400
WrathOTM Lieutenant 547 Rep 518 Posts Drives: BMW 128i Join Date: Jun 2021 Location: Rio Rancho, NM iTrader: (0)	Finally got a 2011 coupe brochure. With my old lexus I got both a Lexus US brochure and a JDM Toyota Aristo brochure like days after picking up my GS. So I'm ashamed that it took so long to get a 1er brochure. Since y'all are talking about the 6-pot brakes. I did notice a pic in the brochure that depicts the performance brakes with their little nubs removed. Attached Images __________________ Mods to date: The list grows...
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03-16-2023, 01:29 PM	#18402
scratchgolf135 First Lieutenant 281 Rep 372 Posts Drives: alpine white 135i Join Date: Apr 2012 Location: Fishers, IN iTrader: (0)	I'm gonna follow suit on this. No other performance calipers have these so why would they be necessary. Likely just for aesthetics. __________________ IG: t_turner64
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03-16-2023, 01:34 PM	#18403
twinturbovan Second Lieutenant 207 Rep 223 Posts Drives: 2009 BMW 135i M Sport Vert Join Date: Jun 2019 Location: San Antonio, TX iTrader: (0)	A short video clip of my cars build process. New wing, new race car livery. Cant wait for it to put my new track spec ARC-8s and my Splitter! https://youtube.com/shorts/vBr9UeztdXs?feature=share
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03-16-2023, 01:35 PM	#18404
Fishee Lieutenant 1003 Rep 473 Posts Drives: 135i MSport Join Date: Jan 2022 Location: Toronto iTrader: (0)	Had dings removed.
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03-16-2023, 02:07 PM	#18406
Donkeyshins Second Lieutenant 370 Rep 294 Posts Drives: 2010 128i ZSP 6MT Join Date: Jun 2007 Location: Puget Sound Region iTrader: (0) Garage List 2010 BMW 128i [0.00]	My thought is maybe it was added for additional heatsinking or for some sort of harmonic dampening to prevent brake squeal / noise, but yeah, it's a lot of extra sprung weight per wheel with (apparently) very little downside for removal. [EDIT: Ric in RVA beat me to the punch]
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03-16-2023, 02:07 PM	#18407
scratchgolf135 First Lieutenant 281 Rep 372 Posts Drives: alpine white 135i Join Date: Apr 2012 Location: Fishers, IN iTrader: (0)	Good guess. If so, I don’t care about some squeal. I’m trying to shave every ounce and I’ve already gone two piece rotors so this would be a nice additional unsprung savings. With that and the forged wheels I’m saving 14lbs on each front corner.
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03-16-2023, 03:34 PM	#18409
WrathOTM Lieutenant 547 Rep 518 Posts Drives: BMW 128i Join Date: Jun 2021 Location: Rio Rancho, NM iTrader: (0)	I would like to add one more pic. I think they were arguing over this. Methinks the engineers at BMW had a similar discussion regarding future models, and they came to the conclusion that it did nothing or very little, given that I have not seen any other hooves/knubs on any other calipers. Anyone ever see 300zx or R32 front calipers? Those had pronounced cooling fins on them but disappeared after the mid 90s from presumably better pad formulations and brake fluid did more for performance Attached Images __________________ Mods to date: The list grows...
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03-16-2023, 06:15 PM	#18410
scratchgolf135 First Lieutenant 281 Rep 372 Posts Drives: alpine white 135i Join Date: Apr 2012 Location: Fishers, IN iTrader: (0)	Done. Don’t mind the rust, it’s been parked for over a year.
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03-16-2023, 07:43 PM	#18411
Blau J 367 Rep 697 Posts Drives: BMW 128i Join Date: Feb 2019 Location: Connecticut iTrader: (0) Garage List 2011 BMW 128i [6.00] 2013 BMW X3 28i [0.00]	I replaced the plastic intake piece with the accordion that goes into the intake box. I noticed some tears so I ordered up a new one. Attached Images
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03-16-2023, 08:13 PM	#18412
scratchgolf135 First Lieutenant 281 Rep 372 Posts Drives: alpine white 135i Join Date: Apr 2012 Location: Fishers, IN iTrader: (0)	Yea, not gonna spray the face of an expensive rotor though. Rust will be gone in a hurry in a few months when the build is done. 😎
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03-16-2023, 10:02 PM	#18413
JoeH128 New Member 11 Rep 23 Posts Drives: 2012 128 coupe Join Date: Sep 2014 Location: East Bay, CA iTrader: (0)	PCV valve replaced by dealer under SULEV warranty at 101,858 mi.
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