Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > Other BMWs
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-27-2007, 08:53 PM
Member
 
Join Date: Mar 2006
Location: SF/LA/SD :)
Posts: 1,180
crosvs is on a distinguished road
Question E46 M3 fake brake duct?!

I noticed earlier today that, whereas the driver's side front brake duct is "real" -- e.g., there really is a passageway through the front air dam more or less directing air to the front left brake -- the passenger's side front brake duct is ... well ... FAKE!! -- there IS no cut out for the air to pass through; instead i can see what looks like cut out indentations, almost like the thing could be manually cut/popped out if desired.

Explanations?!

Seems like it would be pretty bad to do track events like this, that the passenger's side would overheat far faster than the driver's side...........
__________________
MARC/CROSVS | UCLA Bruin, B.A. Econ, Aug 2004 | J.D., Thomas Jefferson School of Law, May 2008 -- MEMBER: California State Bar, December 4, 2008

2005 BMW 645 Cabrio | Black Sapphire Metallic, Ti trim | 6AT | fully loaded sans HUD

2000 Ford Mustang V6 | laser red on tan | 5-spd | track-prepped
Reply With Quote

Sponsored Links

  #2  
Old 02-28-2007, 01:19 AM
PersonaNonGrata's Avatar
Moderator
 
Join Date: Mar 2005
Location: SoCal
Posts: 7,749
PersonaNonGrata is on a distinguished road
I think that the cover for the left side was removed. If I recall correctly, and I could be wrong, those duct were covered for liability reasons. There is a fear that rocks and other debris could enter and impair brake functioning. If you look up inside the wheel wells of the X5 there are similar covers that are closed. They are presumably brake cooling ducts that have been closed. Likewise, the E39 M5 has ducting blocked off. You will see some E39 M5's with chrome rings in the lower front grille that have been cut out by the owner to open up the brake ducts. I'll try and find some pics.
__________________
Reply With Quote
  #3  
Old 02-28-2007, 01:24 AM
Member
 
Join Date: Mar 2006
Location: SF/LA/SD :)
Posts: 1,180
crosvs is on a distinguished road
hm. curious. why would the prior owner have removed only one of them?! i'd certainly like to cut out the right side as well .......

and as for debris getting in there, haha yeah i saw a piece of styrofoam lodged in there

btw... i should take pix but, it's not a huge rectangular cut out: more like ... hm ... imagine a square with 4 quadrants, and each quadrants has 2 cut-outs each:


XXXXX XXXXX
XXXXX XXXXX


XXXXX XXXXX
XXXXX XXXXX

where the X's are cut out of the surrounding plastic.
__________________
MARC/CROSVS | UCLA Bruin, B.A. Econ, Aug 2004 | J.D., Thomas Jefferson School of Law, May 2008 -- MEMBER: California State Bar, December 4, 2008

2005 BMW 645 Cabrio | Black Sapphire Metallic, Ti trim | 6AT | fully loaded sans HUD

2000 Ford Mustang V6 | laser red on tan | 5-spd | track-prepped
Reply With Quote
  #4  
Old 02-28-2007, 01:28 AM
PersonaNonGrata's Avatar
Moderator
 
Join Date: Mar 2005
Location: SoCal
Posts: 7,749
PersonaNonGrata is on a distinguished road
Here is an example of the M5 cutouts but depicted on a "regular" E39. I know that Hayaku did this on his E39 M5 and SANguru might also have done this on his.


__________________
Reply With Quote
  #5  
Old 02-28-2007, 01:45 AM
SANguru's Avatar
Scuderia Ferrari Tifosi
 
Join Date: Mar 2005
Location: Bay Area, CA
Posts: 6,500
SANguru is on a distinguished road
yup.. there are no brake ducts. They were closed off very liability as Kevin said. The slats are easy to break off though especially if you track the car. if you open them up, I suggest chicken wiring it. Here's mine on my old M5..
Attached Images
 
Reply With Quote
  #6  
Old 02-28-2007, 02:23 AM
Member
 
Join Date: Mar 2006
Location: SF/LA/SD :)
Posts: 1,180
crosvs is on a distinguished road
sounds good, i'll definitely go ahead and open up the passenger side one too then, and i'll definitely install the chicken wiring.

two questions still remain however:

(1) why would the prior owner have removed only one side?!

(2) does it really make that much an improvement?

Because if any of you remember from an older post of mine, i managed to totally boil my dad's C4S brake fluid which i would guess is a consequence of inadequate brake disc cooling too??

i don't want to have the m3 fade on me at thunderhill or buttonwillow also lol that said, i'd LOVE to try willowsprings
__________________
MARC/CROSVS | UCLA Bruin, B.A. Econ, Aug 2004 | J.D., Thomas Jefferson School of Law, May 2008 -- MEMBER: California State Bar, December 4, 2008

2005 BMW 645 Cabrio | Black Sapphire Metallic, Ti trim | 6AT | fully loaded sans HUD

2000 Ford Mustang V6 | laser red on tan | 5-spd | track-prepped
Reply With Quote
  #7  
Old 02-28-2007, 02:39 AM
SANguru's Avatar
Scuderia Ferrari Tifosi
 
Join Date: Mar 2005
Location: Bay Area, CA
Posts: 6,500
SANguru is on a distinguished road
don't worry.. it won't fade on you.. you're not fast enough yet.. not to mention that not all track events let verts on the track even with popup roll bars.

Quote:
Originally Posted by crosvs
sounds good, i'll definitely go ahead and open up the passenger side one too then, and i'll definitely install the chicken wiring.

two questions still remain however:

(1) why would the prior owner have removed only one side?!

(2) does it really make that much an improvement?

Because if any of you remember from an older post of mine, i managed to totally boil my dad's C4S brake fluid which i would guess is a consequence of inadequate brake disc cooling too??

i don't want to have the m3 fade on me at thunderhill or buttonwillow also lol that said, i'd LOVE to try willowsprings
Reply With Quote
  #8  
Old 02-28-2007, 02:41 AM
Member
 
Join Date: Mar 2006
Location: SF/LA/SD :)
Posts: 1,180
crosvs is on a distinguished road
well, the fact that i probably won't fade them is good ..... the fact that not all tracks allow verts is ..... VERY BAD!!!!! i know that NASA itself allows verts with pop-up bars ....... didn't realize certain TRACKS disallow them though
__________________
MARC/CROSVS | UCLA Bruin, B.A. Econ, Aug 2004 | J.D., Thomas Jefferson School of Law, May 2008 -- MEMBER: California State Bar, December 4, 2008

2005 BMW 645 Cabrio | Black Sapphire Metallic, Ti trim | 6AT | fully loaded sans HUD

2000 Ford Mustang V6 | laser red on tan | 5-spd | track-prepped
Reply With Quote
  #9  
Old 02-28-2007, 04:10 PM
Member
 
Join Date: Mar 2006
Location: SF/LA/SD :)
Posts: 1,180
crosvs is on a distinguished road
btw, i like those chrome rings around the M5 ... can i do that on the M3 as well?
__________________
MARC/CROSVS | UCLA Bruin, B.A. Econ, Aug 2004 | J.D., Thomas Jefferson School of Law, May 2008 -- MEMBER: California State Bar, December 4, 2008

2005 BMW 645 Cabrio | Black Sapphire Metallic, Ti trim | 6AT | fully loaded sans HUD

2000 Ford Mustang V6 | laser red on tan | 5-spd | track-prepped
Reply With Quote
  #10  
Old 03-12-2007, 05:59 PM
hayaku's Avatar
Premier Member
 
Join Date: Mar 2005
Location: OC
Posts: 1,870
hayaku is on a distinguished road
the older m3's have the cutouts with a cover on them. i don't know if the newer ones have the cover or if it was never cut out. but i've never seen an m3 that didn't have the duct hole in the fender liner.

its possible you had your fender liner replaced with one that didn't have the brake duct cut out.

on the e39m5, you had to cut your own holes in the fender liner and install the factory ducts to route the air properly.

here's pics of my old 03..
Attached Images
  
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 08:15 AM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.