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Old 11-24-2012, 10:25 AM   #1
vicious_fishes
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Default so those "bolt in" brake ducts.. do they work?

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Old 11-24-2012, 12:13 PM   #2
kos
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Hmm...

I used those "RooDucts", the ABS plastic ones that mount in the wheel wells, and they worked okay, minus the fact that the plastic is thin and broke very easily. That was pretty disappointing.

I think my next step down the line will be doing frame rail ducts.
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Old 11-24-2012, 02:31 PM   #3
mav1c
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In theory they should do something, but not much. Just seems like not near enough surface area to really "scoop" in enough air. IMO.
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Old 11-24-2012, 04:57 PM   #4
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Na, if you're running your car hard enough to need brake ducting you should check out RaceComp Engineering or Quantum Motorsports for the hub side adapters you can run ducting to.
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Old 11-24-2012, 06:14 PM   #5
rbahr
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I use these as well as the Quamyum engineering ducts. They are patterened after a Porsche design. Helps but is not nearly enough...

Ray
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Old 11-26-2012, 05:22 AM   #6
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Old 11-26-2012, 09:57 AM   #7
tdrrally
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Quote:
Originally Posted by SashaSasha View Post
this set will do wonderfull things at keeping your brakes cool
as long as you use the right hose to ge the air forced to them
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Old 11-26-2012, 10:56 AM   #8
axelthrasher
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If you can run a NACA duct setup, with 3" hose running directly to the disc, attached to some sort of splitter, that is one of the best set ups in my opinion...
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Old 11-26-2012, 04:04 PM   #9
mjfubar101
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I used a combination of the Rooduct and the Quantum pieces from LIC Motorsports but then again I went to over 30 track events this year... But at the end of the year with those 2 and some high temp hose and some TI shims from Girodisc the brakes now can hold up! But I really push the car!
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Old 11-26-2012, 04:07 PM   #10
mjfubar101
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For the rooducts I have seen many people talk about them breaking, you really have to pay attention when mounting them up and put almost an inch spacer in to keep them straight, also use washers after 6 months mine are still going strong.
Another thing is on the passenger side the rooduct will need to have some heat reflective tape where it can been seen from the engine bay as the header (even stock) will start to melt it, that is under hard driving conditions like the track.
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Old 11-26-2012, 07:40 PM   #11
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Those having cooling issues, what brakes are you using?
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Old 11-27-2012, 01:33 PM   #12
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Roo Ducts And 3" Flex Hose with Fog light cover custom made fascia's.....So far So Good
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Old 11-27-2012, 03:27 PM   #13
kos
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Quote:
Originally Posted by mjfubar101 View Post
For the rooducts I have seen many people talk about them breaking, you really have to pay attention when mounting them up and put almost an inch spacer in to keep them straight, also use washers after 6 months mine are still going strong.
Another thing is on the passenger side the rooduct will need to have some heat reflective tape where it can been seen from the engine bay as the header (even stock) will start to melt it, that is under hard driving conditions like the track.
My duct cracked in a few places, which I slathered JB weld on to fix. The neck broke off on one of them as well that shoots towards the rotor.

I didn't have them hooked up at SLB since now the driver's side doesn't fit with my APS fmic, and my ST40s had no problem on their own with the off the shelf pads the kit came with. If I switch over to R-Compounds or a full slick, I may look into hooking the ducts back up, but for now I'm going to skip them, since there isn't really a way to fix the broken off piece since it's only plastic.

Last edited by kos; 11-27-2012 at 04:04 PM.
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Old 11-27-2012, 07:07 PM   #14
joshuaj
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The Racecomp Engineering ducts direct air to the eye of rotor. Most of the other versions (like the one Sasha is selling) also blow cold air on the inner rotor face. Not so good..
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Old 11-27-2012, 07:15 PM   #15
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Oh and the p-car style ones work fairly well on the 911s, not sure about subaru tho. They are prone to auto-removal during offs and lead to brake over heating issues when that happens so they must be doing something..
But IMO the proper way to do it is ducting to the eye of the rotor from the front of the car if you are tracking very seriously. $0.2
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Old 11-27-2012, 07:40 PM   #16
kos
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Quote:
Originally Posted by joshuaj View Post
The Racecomp Engineering ducts direct air to the eye of rotor. Most of the other versions (like the one Sasha is selling) also blow cold air on the inner rotor face. Not so good..
Yeah the Quantums are the same way. I have an RCE kit as well, but like how the Quantum kit tucks the hose better than the RCE kit.
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Old 11-28-2012, 05:51 PM   #17
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Quote:
Originally Posted by kos View Post
Yeah the Quantums are the same way. I have an RCE kit as well, but like how the Quantum kit tucks the hose better than the RCE kit.
The Quantum kits I've seen pics of spray the rotor face too. They may have changed them.. I dunno
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Old 11-28-2012, 05:52 PM   #18
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I should also mention my only experience with these is on 08' and newer stuff...
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Old 11-28-2012, 06:12 PM   #19
Flosiden
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This is sweet I didn't know they sold these kits..
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Old 12-02-2012, 11:30 AM   #20
gotboost2jz
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Certainly doesn't look like they'd work. At least not a noticeable amount. Not big enough to really direct enough airflow.
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Old 12-04-2012, 10:49 PM   #21
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Subaru makes some units for the WRX
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Old 12-05-2012, 11:26 AM   #22
68Cadillac
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Quote:
Originally Posted by sackytar View Post
Subaru makes some units for the WRX
Do you have the part numbers?
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Old 12-06-2012, 11:53 AM   #23
kos
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Quote:
Originally Posted by sackytar View Post
Subaru makes some units for the WRX
You sure?

Quote:
Originally Posted by 68Cadillac View Post
Do you have the part numbers?
Rasmus I'm gonna go through my parts catalog and see if I can find anything.

The only part I can think of is the splash shield on the GD chassis that has routing into the wheel wheel, but it doesn't direct it anywhere in specific.

Those are 59123FE000 and 59123FE010

Last edited by kos; 12-06-2012 at 12:02 PM.
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Old 06-14-2013, 10:37 AM   #24
randy zimmer
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Default broken RooDucts

Hi, I make the RooDucts and try to follow up on failures. Every time I've been given a broken duct, I investigate the cause. So far, improper installation is the reason for most all the failures. The ducts are easy to install, but need to be placed properly, which takes just a little more time. Because I make them as big as they possibly can be to allow the most air through them, the placement is critical. If the duct is broken, it had something hit it and breaking the duct is preferable to bending a tie rod or binding the suspension. A bit of glue and/or tape will get you through the weekend, then contact me with pictures and such and I can see where we can improve.
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Old 06-14-2013, 04:17 PM   #25
GarySheehan
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What is the application you're looking for cooling ducts for?

Gary
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