mikeatrpi
mikeatrpi HalfDork
1/10/18 9:00 p.m.

Alright  - is this effective?  This video shows brake ducting by putting a tube from the bumper into the wheel-well... but does not connect it directly to the brake backing plate.  

https://www.youtube.com/watch?v=4ak_Qj6QfDA

 

rslifkin
rslifkin SuperDork
1/10/18 9:07 p.m.

If it leads to more air flowing over the brakes, it's going to make at least some difference.  It's probably not optimal though. 

bentwrench
bentwrench Dork
1/10/18 10:34 p.m.

Ideally air should be directed to the center of the rotor where it will be pumped through the rotor.

A second hose should cool the caliper.

GameboyRMH
GameboyRMH GRM+ Memberand MegaDork
1/11/18 8:08 a.m.

Yeah that setup is doing little to nothing. Getting air to the center of the rotor via the backing plate is very important. That guy could perhaps put a scoop on his backing plate that meets with the hole where the air comes out when driving straight.

Here's a trick you can do to save a good bit of money on high-temp hose at the expense of some cooling power, that involves leaving a small air gap so that you can use cheap pool hose:

https://grassrootsmotorsports.com/forum/tech-tips/lets-build-some-brake-ducts-on-the-cheap/103864/page1/

81cpcamaro
81cpcamaro Dork
1/11/18 9:55 a.m.

The 2014-15 Z28 brake cooling duct dumps air into the wheel well, they don't go to the rotor. It helps with brake cooling, but it would be even better to direct it to the center of the rotor like others stated.

Stanger2000
Stanger2000 New Reader
1/11/18 11:45 a.m.
81cpcamaro said:

The 2014-15 Z28 brake cooling duct dumps air into the wheel well, they don't go to the rotor. It helps with brake cooling, but it would be even better to direct it to the center of the rotor like others stated.

+1, my E36 M3 (RIP) had this, they have openings next to the fogs where there are plastic ducts that run through into the plastic wheel liners.  I think even the 325/328 variants had this set up as well.  I've seen quite a few examples of this I want to say as of late even in some fairly pedestrian newer cars.  

You'll need to log in to post.

Our Preferred Partners
pBy43DHQB49gt3wwtplKNUDyg4eSjy9EpMADppBCPiBUfArGXnOtBtnFVJ56KzZS