BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > Track / Autocross / Dragstrip > DIY brake ducts

Post Reply
 
Thread Tools Search this Thread
      08-30-2018, 05:56 PM   #67
DrKevM5
Colonel
DrKevM5's Avatar
United_States
1712
Rep
2,246
Posts

Drives: G05 X5, F87 M2
Join Date: Aug 2008
Location: Western NY

iTrader: (7)

And that actually isn't a bad price considering the advantage it gives on the track. Racin' ain't cheap.
__________________
'16 M2 Long Beach Blue/Black, 6MT
'19 X5 4.0 M Sport Black Sapphire/Tartufo
'18 Alfa Romeo Stelvio Quadrifoglio Vesuvio Grey/Black
Appreciate 0
      08-30-2018, 08:51 PM   #68
Xchange43
Private First Class
Canada
55
Rep
133
Posts

Drives: 2018 F87 BMW M2 LCI
Join Date: Jul 2013
Location: Montreal

iTrader: (0)

I just did a quick search on google and found this so with more research i could find other kits cheaper
__________________
2011 BMW X1 28 (sold)
2013 BMW 328 Sportline (sold)
2018 BMW M2 LCI (current)
Appreciate 0
      07-05-2019, 01:15 PM   #69
landapanda
Lieutenant
265
Rep
450
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Ashburn, Virginia

iTrader: (0)

Hey everybody, I just did the Porsche GT3 air ducts in stall on my '18 F87, and wanted to leave the installation video and couple of pictures here in case anyone else is going to attempt a DYI in the future.



Buy the duct kit here:
https://www.ecstuning.com/b-genuine-...hoCpuMQAvD_BwE

Picture of the original air ducts as well as the modified ones,including tools needed for the install:
Attached Images
   
Appreciate 5
omasou1168.50
mcvaughan547.50
pbar624.50
dcmac406.00

      07-05-2019, 02:00 PM   #70
booya_45
Private
45
Rep
96
Posts

Drives: 2017 M2
Join Date: Feb 2018
Location: Philadelphia

iTrader: (0)

Thanks for sharing!
Appreciate 0
      07-05-2019, 04:32 PM   #71
M2C AW
First Lieutenant
154
Rep
363
Posts

Drives: 2019 M2C Alpine White
Join Date: Oct 2018
Location: Houston

iTrader: (1)

+1 thanks for sharing !
does anyone know..does the Porsche have the backing shields similar to ours ??
How do they channel the air flow toward the center hub ?
On our cars, Its hard to imagine that sufficient air will actually get to the hub center with the shields in place and unmodified.
Appreciate 1
randyt217.00

      07-05-2019, 08:33 PM   #72
landapanda
Lieutenant
265
Rep
450
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Ashburn, Virginia

iTrader: (0)

Quote:
Originally Posted by M2MGM View Post
+1 thanks for sharing !
does anyone know..does the Porsche have the backing shields similar to ours ??
How do they channel the air flow toward the center hub ?
On our cars, Its hard to imagine that sufficient air will actually get to the hub center with the shields in place and unmodified.
My buddy has a 911 S and he has them front and back. He had backing plates, but I don't recall how aggressive was the opening. Next time I am at his house, I'll take a picture. Or someone could pull the schematics for 911 brakes...
Appreciate 0
      07-16-2019, 10:48 AM   #73
dvas
Lieutenant
dvas's Avatar
376
Rep
488
Posts

Drives: 2017 M2 - Mineral Gray, 6spd
Join Date: Jul 2014
Location: NYC

iTrader: (0)

Completed the long overdue brake duct diy over this weekend. Wasn't too bad, took about 3 hours taking my time. Had to buy a few new tools (oh no) including a drill, some bits and a hole saw and an assortment of parts. The parts totaled about $200, add another $100 for new backing plates if you ever want to return to stock.

I'll be at Limerock for the PCA event this Monday to see if this makes a material difference. I fear my testing will be anecdotal as I don't have a way to measure a difference and my calipers have long turned black. I hope that at least these ducts help prevent cracking of brake pads, which has become a problem recently.

I got guidance on everything from the following post, although I think his duct mounting points were better located:

https://f80.bimmerpost.com/forums/sh...=brake+cooling
Attached Images
  
Appreciate 1
bentom2146.00

      07-16-2019, 12:59 PM   #74
M2C AW
First Lieutenant
154
Rep
363
Posts

Drives: 2019 M2C Alpine White
Join Date: Oct 2018
Location: Houston

iTrader: (1)

Looks good...nice job and.....Thanks for posting !
Appreciate 0
      07-19-2019, 07:34 PM   #75
backmotor
Enlisted Member
United_States
23
Rep
43
Posts

Drives: 2017 Mineral gray M2 DCT
Join Date: Mar 2017
Location: Toledo, OH

iTrader: (0)

Garage List
I got tired of make-shifting some brake cooling ducting and finally dove in the rabbit hole! I found a set of M4-GT4 brake ducts from a racing friend of mine and decided to make it work on my M2. It took some work, taking off the front bumper cover and all related shields, etc. plus modifying a few areas to get the duct through, but I think I have some decent brake cooling now.
It consists of a 2.5" hose from the front of the nose with the M4 scoop, and a 3" hose from a scoop under the A-arm. The GT4 backing plate replaces the stock shield, is carbon fiber, and has provisions for both the 3" and the 2.5" hose. The scoop is plastic and is one I had lying around, not part of the GT4 setup. I did cut out the bumper cover to fit the GT4 small scoops for the 2.5" hose, but I'll get over it. The M4 nose is not exactly the same shape as the M2 nose, but I think it looks OK and it works.
All this is after I gave up on the stock M2 brakes and went to AP calipers and rotors.
Just thought it might be of interest to some of you guys.
Attached Images
  
Appreciate 6
      07-20-2019, 05:35 AM   #76
MagnusT
Captain
MagnusT's Avatar
Sweden
498
Rep
626
Posts

Drives: BMW M2
Join Date: Jun 2016
Location: Stockholm

iTrader: (0)

Nice place for the bumper air intake.

Do you have any pics of the GT4 backing plate? Curious how they aimed the two hoses on to the rotor
Appreciate 0
      07-20-2019, 01:24 PM   #77
backmotor
Enlisted Member
United_States
23
Rep
43
Posts

Drives: 2017 Mineral gray M2 DCT
Join Date: Mar 2017
Location: Toledo, OH

iTrader: (0)

Garage List
The CF backing plate replaces the stock backing plate, and the two hoses are directed into the eye of the rotor, not onto the rotor itself. I blew air into the front of the car and could feel it coming out of the vents in the rotor, so it works. I'll try and get a pic of the CF backing plate and post it.
Appreciate 0
      07-20-2019, 04:09 PM   #78
MagnusT
Captain
MagnusT's Avatar
Sweden
498
Rep
626
Posts

Drives: BMW M2
Join Date: Jun 2016
Location: Stockholm

iTrader: (0)

I have the cf backing plate from Lightweight for one hose which works very well. It also points the hose to the center. Curious about the double hose setup :-)
Appreciate 0
      08-31-2019, 08:42 AM   #79
FlyingLow78
Captain
Italy
564
Rep
850
Posts

Drives: 2018 M3
Join Date: Dec 2016
Location: <3 hours from 8 racetracks

iTrader: (2)

Quote:
Originally Posted by Xchange43 View Post
I m resurecting this post but does anyone have tested this solution :
http://www.revozport.com/f8x/rzp-bra...it.html#popup1

looks great but not sure if compatible :

https://f80.bimmerpost.com/forums/showthread.php?t=1379690&highlight=Revozport

I tried it, and Iím picking up the front scoops again soon. I still have the rotor shields as well (including the one with a bit of burn through), but I plan on modifying the stock aluminum shields with duct connections.
Appreciate 0
      09-10-2019, 09:48 PM   #80
DrKevM5
Colonel
DrKevM5's Avatar
United_States
1712
Rep
2,246
Posts

Drives: G05 X5, F87 M2
Join Date: Aug 2008
Location: Western NY

iTrader: (7)

Installed the 997 Turbo Rear Brake Cooling Duct Kit. Figured the additional rear cooling couldn't hurt. Slight modification needed for clearance.
Attached Images
   
__________________
'16 M2 Long Beach Blue/Black, 6MT
'19 X5 4.0 M Sport Black Sapphire/Tartufo
'18 Alfa Romeo Stelvio Quadrifoglio Vesuvio Grey/Black
Appreciate 1
mcvaughan547.50

      09-10-2019, 11:14 PM   #81
M2C AW
First Lieutenant
154
Rep
363
Posts

Drives: 2019 M2C Alpine White
Join Date: Oct 2018
Location: Houston

iTrader: (1)

Canít tell..did you remove the shields ?
Appreciate 0
      09-11-2019, 05:34 AM   #82
DrKevM5
Colonel
DrKevM5's Avatar
United_States
1712
Rep
2,246
Posts

Drives: G05 X5, F87 M2
Join Date: Aug 2008
Location: Western NY

iTrader: (7)

Quote:
Originally Posted by M2MGM View Post
Can’t tell..did you remove the shields ?
Nothing was removed
__________________
'16 M2 Long Beach Blue/Black, 6MT
'19 X5 4.0 M Sport Black Sapphire/Tartufo
'18 Alfa Romeo Stelvio Quadrifoglio Vesuvio Grey/Black
Appreciate 0
      09-11-2019, 07:10 AM   #83
ZM2
Colonel
746
Rep
2,333
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (0)

I added the Porsche air deflectors to the rear a while back, but also cut away a quadrant of the backing plate so cool air can make it into the hat.

It surprisingly made a noticeable improvement.
Appreciate 0
      09-11-2019, 12:17 PM   #84
ZM2
Colonel
746
Rep
2,333
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (0)

Quote:
Originally Posted by M2MGM View Post
I dont believe the deflectors can help much without removing some / all of the shield / plate.
If you cut the correct portion of the protection plate and align your deflector correctly, the air flows right into the hat where you want itósame as the fronts. You donít have to remove the whole plate.
Appreciate 0
      09-12-2019, 06:09 PM   #85
MagnusT
Captain
MagnusT's Avatar
Sweden
498
Rep
626
Posts

Drives: BMW M2
Join Date: Jun 2016
Location: Stockholm

iTrader: (0)

Quote:
Originally Posted by DrKevM5 View Post
Installed the 997 Turbo Rear Brake Cooling Duct Kit. Figured the additional rear cooling couldn't hurt. Slight modification needed for clearance.
Part numbers please?

Appreciate 0
      09-12-2019, 06:15 PM   #86
DrKevM5
Colonel
DrKevM5's Avatar
United_States
1712
Rep
2,246
Posts

Drives: G05 X5, F87 M2
Join Date: Aug 2008
Location: Western NY

iTrader: (7)

https://www.ecstuning.com/b-genuine-...99733148702kt/
__________________
'16 M2 Long Beach Blue/Black, 6MT
'19 X5 4.0 M Sport Black Sapphire/Tartufo
'18 Alfa Romeo Stelvio Quadrifoglio Vesuvio Grey/Black
Appreciate 0
      09-13-2019, 02:24 PM   #87
MagnusT
Captain
MagnusT's Avatar
Sweden
498
Rep
626
Posts

Drives: BMW M2
Join Date: Jun 2016
Location: Stockholm

iTrader: (0)

Thank you!
Appreciate 0
      09-26-2019, 03:03 PM   #88
FlyingLow78
Captain
Italy
564
Rep
850
Posts

Drives: 2018 M3
Join Date: Dec 2016
Location: <3 hours from 8 racetracks

iTrader: (2)

Quote:
Originally Posted by backmotor View Post
I got tired of make-shifting some brake cooling ducting and finally dove in the rabbit hole! I found a set of M4-GT4 brake ducts from a racing friend of mine and decided to make it work on my M2. It took some work, taking off the front bumper cover and all related shields, etc. plus modifying a few areas to get the duct through, but I think I have some decent brake cooling now.
It consists of a 2.5" hose from the front of the nose with the M4 scoop, and a 3" hose from a scoop under the A-arm. The GT4 backing plate replaces the stock shield, is carbon fiber, and has provisions for both the 3" and the 2.5" hose. The scoop is plastic and is one I had lying around, not part of the GT4 setup. I did cut out the bumper cover to fit the GT4 small scoops for the 2.5" hose, but I'll get over it. The M4 nose is not exactly the same shape as the M2 nose, but I think it looks OK and it works.
All this is after I gave up on the stock M2 brakes and went to AP calipers and rotors.
Just thought it might be of interest to some of you guys.
This is the kind of cooling I want. I have AP fronts as well, but none of the cooling solutions seem effective enough to survive at Monza.

Any idea where I could at least find scoops like you have connected to your lower arms? I’m not willing to cut my bumper just yet. Snaking the cooling hose through the narrow gaps between the body brackets and the various radiators doesn’t sound like fun, either. I’ve already spent a lot of time looking around the area inside the wheel arches trying to find a path for the cooling hoses, and everything is a compromise.

Did the M4 rotor backing plates fit correctly on the 372mm rotors?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:13 AM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST