Brake Ducting?

[Ponyboy]

I've got the Dali Racing Air Deflectors. I've even bought some tubing. My goal is to get additional air to the brakes but when I've looked for a suitable spot to rig the brake ducts. . .I can't find an ideal location. Well, that's not true. There is an ideal place but that would require taking out the A/C radiators and I'm not at that phase yet. The options I've seen so far is to get the RM front spoiler with the brake ducts or make a ghetto front spoiler with brake ducts.

Suggestions and experience please?

Right now I'm using Motul 600 w/ the Dali Air Deflectors. At my last race, the brakes weren't overheating but I wasn't really braking that hard either.

 

[nsxtasy]

I have two-inch high-temp ducting. It runs from the lower openings of the stock front air dam, squeezes alongside the lower corners of the radiator (just above the core support), and attaches to a flange that my mechanics welded to the dust guards behind the rotors, so that it blows directly on the surface of the rotors.

 

[Andrie Hartanto]

On Vented rotors, u want to direct the air toward the hub (center of the rotor). So air can travel thru the vents, thus cooling it effectively.

 

[nsxtasy]

Not necessarily. The surface of the rotor is where the heat builds up, and where you need the cooling most. Furthermore, if you go to something like the two-piece Stoptech rotors, the hub might not even connect to the vents in the rotors.

 

[Andrie Hartanto]

Ken,

The way to properly cool the vented rotors, especially newer design with curved vane, are to route the air path toward the center of the rotor (hat). Thus producing an air travel from the center of the rotors, toward the outer of the rotors thru the vane/vent. Sort of like heat sink. I don't mean to cool the hub, so the cooling effect spread to the rotors. Rather provide more air to travel thru the vent on the rotors. The way u are doing it is proper for non vented discs. I will try to scan the drawing of it so u get better picture of the idea.

I believe u don't understands clearly what I mean. Cause it doesn't matter what rotor, even the stoptech ones, they are all vented rotors and should be cooled the way I describe.

[This message has been edited by Andrie Hartanto (edited 22 October 2001).]

 

[Ponyboy]

As far as I've read, the ducting should direct air as close as possible to the center of the rotor so that the "vented" rotor can better do it's job. Air forced thru the vents will actually do a better job of disapating heat than directing air merely to the surface of the rotor. It'll provide better and more even cooling. As far as I've read anyway. Grassroots Motorsports had a great article on brakes awhile ago.