BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Track / Autocross / Dragstrip / Driving Techniques
 
INDustry distribution
Post Reply
 
Thread Tools Search this Thread
      06-19-2013, 11:58 PM   #23
pkimM3r
Banned
pkimM3r's Avatar
96
Rep
7,321
Posts

 
Drives: m3 saloon in granny mode.
Join Date: Dec 2009
Location: lost angeles

iTrader: (0)

Quote:
Originally Posted by surlynkid
Quote:
Originally Posted by pkim1079 View Post
just looked them up on turner. $500 for front ducts $90 for hoses. Still not backing plate though. Cantrell seem pretty good for the money. I think I may need to get one of these kits.

I saw a thread on here where his stock e90 had the brake ducts already below the front cover. Mine seems like its just cardboard with some fur on it.
don't bother with the carbon fiber front ducts for $500. get the apex ones for $200/pair. The GT4 backing plates are not easily available. Only the GT4 dealers in the US can get them. They are over $600 each. The matching hose is 70mm which is Euro purchase only. I got my hoses from a dealership in Belgium. It is 2.75" which i could not find domestically.

the backing plates force air through the rotor vanes. there are tight clearances to assure the air exit the vanes. just plumbing air into the wheelwell seems like a complete waste to me.
Which backing plates do you use?
Appreciate 0
      06-20-2013, 12:46 AM   #24
surlynkid
Major
surlynkid's Avatar
10
Rep
1,049
Posts

 
Drives: 2013 E92 M3
Join Date: Apr 2012
Location: League City, TX

iTrader: (1)

Garage List
Original BMW Motorsports GT4 backing plates for the E92 M3.
__________________
Stoptech 380mm/355mm | Pagid RS-29 | Akrapovic EVO - CF tips | Benvo Tune | MS UDP | AA air filter | Apex EC-7 18x10 square 275/35-18 NT01 | Turner Race Studs | GT4 Brake Cooling | GT4 Power Steering Cooling | Performance Steering Wheel | CF Mirror Caps | CF Spoiler | Varis System 1 Full CF Diffuser | Extended Paddle Shifters | Schroth Quick Fit Pro | Turner Steering Rack Stops | Vorshlag Camber Plates | AiM Solo DL
Appreciate 0
      06-20-2013, 01:30 PM   #25
Richbot
Colonel
30
Rep
2,128
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

FWIW, mcmaster.com does sell a few 2 3/4" hose options

http://www.mcmaster.com/#duct-hose/=na0900
__________________
Appreciate 0
      06-20-2013, 08:51 PM   #26
surlynkid
Major
surlynkid's Avatar
10
Rep
1,049
Posts

 
Drives: 2013 E92 M3
Join Date: Apr 2012
Location: League City, TX

iTrader: (1)

Garage List
Quote:
Originally Posted by Richbot View Post
FWIW, mcmaster.com does sell a few 2 3/4" hose options

http://www.mcmaster.com/#duct-hose/=na0900
high temp versions? That is where I got stuck. Honestly, the ones from europe were the same price as racer parts wholesale or other racing supply shops, so it was a no-brainer besides hauling them back.

just checked. mcmaster carr does not have 2.75" high temp hoses besides some galvanized steel ones.
__________________
Stoptech 380mm/355mm | Pagid RS-29 | Akrapovic EVO - CF tips | Benvo Tune | MS UDP | AA air filter | Apex EC-7 18x10 square 275/35-18 NT01 | Turner Race Studs | GT4 Brake Cooling | GT4 Power Steering Cooling | Performance Steering Wheel | CF Mirror Caps | CF Spoiler | Varis System 1 Full CF Diffuser | Extended Paddle Shifters | Schroth Quick Fit Pro | Turner Steering Rack Stops | Vorshlag Camber Plates | AiM Solo DL
Appreciate 0
      06-21-2013, 05:50 AM   #27
LiM3y
Major
LiM3y's Avatar
United Kingdom
19
Rep
1,254
Posts

 
Drives: 2008 E90 M3
Join Date: Jun 2009
Location: CT

iTrader: (3)

Go to www.aircraftspruce.com and search ducts or ducting. They have all the ducting in different sizes and materials you could ever want. They also have aluminium flanges for hooking stuff up too.
__________________
Appreciate 0
      06-24-2013, 01:20 AM   #28
aus
Major General
118
Rep
7,420
Posts

 
Drives: Odysse
Join Date: Jul 2005
Location: Seal Beach, CA

iTrader: (5)

Quote:
Originally Posted by 1MOREMOD View Post
i made my own using apex gt4 ducts and bought rest of my parts from summit. ended up doing 3 inch the whole way which was a mistake due to excessive rubbing. works fine for a non street car but turning radius is greatly reduced.
Does the 3" fit through the undertray piece? I'm thinking of doing what Richbot mentions below.

Quote:
Originally Posted by Richbot View Post
Some on here have seen big improvements with just a 2.5 or 3" hose routed to the fender liner the way just about all BMW's are set up, except on our inexplicably ductless cars. You don't necessarily have to go with backing plates to get most of the benefit of ducting when you're starting with zip for cooling (like we have from the factory for some reason). For a street car that's where I'd stop, coupled with a better pad, if I wanted to stay with the stock brakes anyway, but that Stoptech front 355 kit is so reasonably priced relative to a $800 stock front brake job, kinda makes it hard to ignore the opportunity to upgrade unless you really just want to stay stock or are really sticking to a budget
I'm thinking this is good enough paired with a BBK. What did you use on the back side of the undertray to secure the duct?
Thanks.

It just amazes me we have no ducts at all. E46 had then blocked off, but at least they were there.

.
__________________
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."

Last edited by aus; 06-24-2013 at 01:31 AM.
Appreciate 0
      06-24-2013, 09:29 AM   #29
1MOREMOD
2014 Track Days - 11|Ridge 1:52:24|Pacific 1:35:72
1MOREMOD's Avatar
United_States
173
Rep
12,996
Posts

 
Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

iTrader: (5)

Quote:
Originally Posted by aus View Post
Does the 3" fit through the undertray piece? I'm thinking of doing what Richbot mentions below.



I'm thinking this is good enough paired with a BBK. What did you use on the back side of the undertray to secure the duct?
Thanks.

It just amazes me we have no ducts at all. E46 had then blocked off, but at least they were there.

.
yes the 3 inch fits thru. i used 3 inch universal clamps from summit racing to secure the hose to the inside of the undertray in the fender liner area.
__________________

02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|
Appreciate 0
      06-28-2013, 01:29 PM   #30
03///m3
First Lieutenant
4
Rep
301
Posts

 
Drives: 2013 E92 M3
Join Date: Sep 2007

iTrader: (1)

Does anyone know if the OEM bmw performance front splitters block the area below where the air ducts would be installed on the bottom of the front spoiler? In other words would installing the front splitters prohibit you from installing brake ducts?
Appreciate 0
      06-28-2013, 01:34 PM   #31
SpiralOut
Captain
SpiralOut's Avatar
United_States
12
Rep
789
Posts

 
Drives: 2013 M3
Join Date: Nov 2006
Location: NC

iTrader: (9)

Quote:
Originally Posted by 03///m3 View Post
Does anyone know if the OEM bmw performance front splitters block the area below where the air ducts would be installed on the bottom of the front spoiler? In other words would installing the front splitters prohibit you from installing brake ducts?
Pretty sure they do block that spot yes.
Appreciate 0
      06-28-2013, 03:02 PM   #32
03///m3
First Lieutenant
4
Rep
301
Posts

 
Drives: 2013 E92 M3
Join Date: Sep 2007

iTrader: (1)

Quote:
Originally Posted by SpiralOut View Post
Pretty sure they do block that spot yes.
That sucks
Appreciate 0
      07-03-2013, 09:15 PM   #33
Modena NYC
Private First Class
1
Rep
176
Posts

 
Drives: E90
Join Date: Dec 2011
Location: NYC

iTrader: (0)

Quote:
Originally Posted by 03///m3 View Post
That sucks

Hahaha

I find it hilarious how difficult a solution is.
Appreciate 0
      07-04-2013, 07:49 AM   #34
surlynkid
Major
surlynkid's Avatar
10
Rep
1,049
Posts

 
Drives: 2013 E92 M3
Join Date: Apr 2012
Location: League City, TX

iTrader: (1)

Garage List
Quote:
Originally Posted by 03///m3 View Post
Does anyone know if the OEM bmw performance front splitters block the area below where the air ducts would be installed on the bottom of the front spoiler? In other words would installing the front splitters prohibit you from installing brake ducts?
yup. that is why I sold my splitters before installing them. pretty stupid design when one group does not confer with the other group all within the same company.
__________________
Stoptech 380mm/355mm | Pagid RS-29 | Akrapovic EVO - CF tips | Benvo Tune | MS UDP | AA air filter | Apex EC-7 18x10 square 275/35-18 NT01 | Turner Race Studs | GT4 Brake Cooling | GT4 Power Steering Cooling | Performance Steering Wheel | CF Mirror Caps | CF Spoiler | Varis System 1 Full CF Diffuser | Extended Paddle Shifters | Schroth Quick Fit Pro | Turner Steering Rack Stops | Vorshlag Camber Plates | AiM Solo DL
Appreciate 0
      07-04-2013, 08:16 AM   #35
Car54
Captain
10
Rep
899
Posts

 
Drives: 1999 Z3 Mcoupe | 2008 M3/4
Join Date: Sep 2007
Location: Lutz, FL

iTrader: (1)

Quote:
Originally Posted by apecush View Post
how are your front caliper seals? A few 30 minute sessions with no ducting and with track pads made short work of them. no fade though...
Pistons seals or dust boots? There's a difference.

With wheel well ducting, track pads, and street tires I have no issues with fade.
__________________
Appreciate 0
      07-05-2013, 05:18 AM   #36
apecush
Lieutenant
6
Rep
450
Posts

 
Drives: 2008 E90 M3
Join Date: Aug 2011
Location: Edmonton

iTrader: (2)

Quote:
Originally Posted by Car54 View Post
Pistons seals or dust boots? There's a difference.

With wheel well ducting, track pads, and street tires I have no issues with fade.
sorry, boots.

I'd be scared if I was melting seals...
Appreciate 0
      07-05-2013, 07:27 AM   #37
CSBM5
Captain
9
Rep
633
Posts

 
Drives: 2011 M3, 2001 M5, etc
Join Date: Nov 2005
Location: Raleigh, NC

iTrader: (0)

Quote:
Originally Posted by apecush View Post
how are your front caliper seals? A few 30 minute sessions with no ducting and with track pads made short work of them. no fade though...
Use some Ti shields between the backing plate and the piston. It will likely solve most if not all of your problem. I've been using them for 10 years on various cars with great success (reducing heat transfer to the piston, shielding (from a radiation heat transfer standpoint) the dust boots from "seeing" the hot pad backing plate surface, etc. They are especially effective as your pad thickness wears down since the pad material is a highly effective insulator, so as the pad thickness decreases the backing plate temperature (and therefore piston temperature) goes up...a lot by the time the pads are thin.
__________________
Current Stable:
2011.5 M3 sedan 6MT, Silverstone, no sunroof, no EDC, but most other options
2001 M5 LeMans Blue/Silverstone
2006 330i 6MT Red/black, ZSP, Nav, etc.
2001 Audi S4 6MT; 1996 Volvo 850R wagon
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
Forum Jump


All times are GMT -5. The time now is 11:48 PM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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