|
|
|
02-23-2024, 03:57 PM | #1 |
First Lieutenant
617
Rep 398
Posts |
128i Brake Upgrade
UPDATE:
I've decided to go all in on f30 335i front calipers and e90 328i rear calipers... Here's the breakdown of everything so far. $243.28 - f30 335i front calipers (ebay) *ended up breaking the bleed nipple on drive side caliper trying to remove it and was unable to salvage it... rookie mistake!!!! -$118.94 **seller ended up refunding me $118.13 - another f30 335i front caliper (ebay) $109.51 - autofren rebuild kit $62.70 - e90 328i rear calipers (ebay) $117.22 - autofren rebuild kit $64.99 - g2usa caliper paint kit $296.95 - z4 3.5is front rotors, 128i rear rotors $263.78 - hawk hps 5.0 front and rear pads $108.94 - bimmerworld stainless steel brake line kit $40.85 - 5x caliper seals (see https://www.1addicts.com/forums/show...2&postcount=10) $26.98 - 135i/335i/328i brake master cylinder $1,334.36 - TOTAL ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ORIGINAL: I'm in the beginning stages of planning to replace pads and rotors on my 128i. The car is still my daily driver but a few autocross events a year, and I'm hoping to hit a track day or two this year but we'll see about that. I currently run a set of 16" wheels in the winter and stock 17" in the summer. Depending on the brake route, I may be able to change that up to 17" in the winter and 17/18" in the summer. I also have been using ATE 200 brake fluid. I've researched the usual brake caliper upgrade suggestions... e90 335i fronts / f30 335i fronts and e90 328i rears. But I'm wondering if I can just get by with my stock calipers and upgrade the rotors / pads / fluid to something that is able to hold it's own with more spirited driving events. So I guess my question to y'all would be if I could get by with something like stock rotors (or upgrade to drilled/slotted?), upgraded pads (hawk yellow, ferodo ds2500?), and upgraded fluid? Or should I just aim for upgrading the calipers and go all-in? Last edited by mkeiser; 07-17-2024 at 08:57 AM.. |
02-23-2024, 09:53 PM | #2 |
Working towards usefulness
164
Rep 241
Posts |
IMO….(frame of reference is autocross/occasional daily, no track)…..
Until you’re completely hooked (or if you’re independently wealthy and just looking to spend money), I would simply go to the best pads I could and combine them with good fluid (flushed seasonally or if you ever manage to boil it). No need for special rotors. For autocross I wholly endorse the G-Loc R6 pad compound, but it is targeted directly at autocross in particular - the ‘cold’ bite is astounding. They do not recommend Street or Track use with it - due to noise/dust for the street and I imagine serious fade with prolonged heat from tracking. If I recall correctly pads were close to $700 CAD for front and rear for E9x calipers, so be prepared. I find the G-Locs no more dusty than the Porterfield R4S that I used previously, but they are NOISY. PM me if you wanna grab my set of (fronts and rears) slightly used Porterfields to try as an intermediate upgrade step (they ARE a good improvement). Motul fluid for me - that probably stems from the days I spent on bikes! Again this is all IMO…..I DO have the full E9x front/rear upgrade and would not do it again for how I’m using the car.
__________________
09 128i Slicktop - Ohlins MI01S1, KMac Plates, M3 RSFB, M3 RSB, Hotchkis FSB/endlinks, 1M brace, Wavetrac, Coolerworx, JKVK headers, RPM Motorsport Tune, Yokohama A052 255/40/17s
|
Appreciate
1
cerealwars161.00 |
02-24-2024, 08:55 AM | #3 |
Riffraff
161
Rep 155
Posts
Drives: 128i 6M, 1UZ S13, '62 C10
Join Date: Apr 2023
Location: Detroit Metro Outskirts
|
How close are you to you-pull junkyards? If you're patient, you should be able to pick four calipers for ~$120.
I did a track day in my manual 128i. By the last session of the day I was cooking the oil (i pitted once I hit ~290) and the front brakes were smoking six laps (~9 minutes) into a 20-minute session. I'm an intermediate driver. If I decided to keep tracking I would add an oil cooler (probably also from a 335i) and do the upgrade you're considering. |
Appreciate
0
|
02-24-2024, 10:19 AM | #4 | ||
First Lieutenant
617
Rep 398
Posts |
Quote:
Quote:
What are you using to monitor oil temp? I've always wanted to toss in a e90 gauge cluster to get that oil temp gauge that some of them have... |
||
Appreciate
0
|
02-26-2024, 07:39 AM | #5 | |
Riffraff
161
Rep 155
Posts
Drives: 128i 6M, 1UZ S13, '62 C10
Join Date: Apr 2023
Location: Detroit Metro Outskirts
|
Quote:
The app also lets you create and configure your own gauge setups, displaying any parameters that the DME sees. I have a few setups, some with six gauges (for extraneous things like throttle position, pedal position, O2 readings, etc.). The one I use for track days simply has oil temp on top, and coolant temp on the bottom. It's interesting being able to see how the DME commands the water pump depending on how you are using the car. I admit it is a little tedious if you want to monitor your temps while daily driving, but since I wanted protool for coding primarily, the gauges are a really handy feature. |
|
Appreciate
1
mkeiser616.50 |
05-08-2024, 08:34 AM | #6 |
First Lieutenant
617
Rep 398
Posts |
Updated the OP with what I'm going with... Received and tore down the rear calipers the other day. They are in pretty dang good shape. I could probably reuse the pistons but decided to go for a full rebuild kit from autofren. f30 335i calipers should get here this week and then I can tear those down. Full rebuild kit for those has also been ordered.
__________________
2011 BMW 128i 6MT M Sport - Alpine White on Terracotta w/ Glacier-Silver trim - Koni Yellows w/ H&R Sport Springs, M3 Control Arms, Euro Intake, BMW Performance Exhaust, 3.73 Diff w/ RacingDiffs LSD Conversion, Black Line Taillights, M Performance Grilles, lots-o-maintenance
|
Appreciate
2
Almuliman559.00 cerealwars161.00 |
05-09-2024, 08:51 PM | #7 |
First Lieutenant
617
Rep 398
Posts |
View post on imgur.com Prepped the rear calipers for paint. Received and disassembled the front calipers. |
Appreciate
1
cerealwars161.00 |
05-10-2024, 10:19 PM | #8 |
First Lieutenant
617
Rep 398
Posts |
I broke off the bleed nipple on one of the front calipers. All of my attempts to extract it made it worst until the point of being non salvageable... lessons have been learned and another has been ordered.
|
Appreciate
1
cerealwars161.00 |
05-23-2024, 09:30 AM | #9 |
First Lieutenant
617
Rep 398
Posts |
Here's my update... broken nipple caliper was refunded (wooo!), rebuild kits have arrived, calipers were prepped and painted! Pretty happy with the results, a few runny paint spots but it'll do. Now I need to reassemble everything with the rebuild kits. Rotors and pads arrived as well.
View post on imgur.com |
Appreciate
0
|
07-11-2024, 02:55 PM | #10 |
First Lieutenant
617
Rep 398
Posts |
been a bit since the last update -- the front rebuild kits came with the mismatched number of piston seals, 5 of the wrong size, 3 of the correct. seller is not working with me to remedy it and I'm past the return window. so I just found and ordered 5 of the correct seals. Tough to find and relatively expensive!
__________________
2011 BMW 128i 6MT M Sport - Alpine White on Terracotta w/ Glacier-Silver trim - Koni Yellows w/ H&R Sport Springs, M3 Control Arms, Euro Intake, BMW Performance Exhaust, 3.73 Diff w/ RacingDiffs LSD Conversion, Black Line Taillights, M Performance Grilles, lots-o-maintenance
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|