The brake duct thread!

[lilflx]

im not sure if im posting on the right thread but whatever. Post some photo's of your brake duct!

I want to install some brake duct but ive never seen an ep3 with custom brake duct cooling system on this forum yet. I was thinking to mold a custom brake duct inlet with the fog light cover of the ep3 but not sure if that would look good lmao.

[Lucid Moments]

I've not done it to my car yet. I've thought about it though.

Here is the best example I've seen. Grassroots Motorsports 2002 Civic Si (http://grassrootsmotorsports.com/project-cars/2002-Honda-civic-si/if-it-looks-like-a-duct-and-sounds-like-a-duct/)

[Jukka]

I was trying to figure out how to do something too. I tried using the stock foglight bezels with a velocity stack, but i ran out of room behind the bumper and ran into the condenser. What I was thinking was using air coming up from under the car and then having the hoses instead of hacking up the front bumpers and putting those massive ducts in.

[Tougeep3]

I was thinking one of these on each side on the plastic underbody panel. I've always wanted to add cooling ducts, just havent got around to it yet..

http://www.butlerbuilt.net/products/air_mgt_systems/BBP-7024_Small_Single_Hose_NACA_Duct-Black.jpg

ducts, tubing, fans (http://www.butlerbuilt.net/products/air_mgt_systems/air_mgt_systems.html)

[RedSiBaron]

the front of the splash shield on the type s/type r brakes have a natural built in duct to them

http://www.redpepperracing.com/gallery/d/205179-2/Picture+010small.JPG

my plan is to run ducts from my mugen lip to the front of these when i finally get my lip refinished and installed

[SHG_EasyE]

The EP3 honestly doesnt need brake cooling if youre running Type-S or larger brakes. If i were to do them I would definitely run the naca ducts to the lower splash shield. I dont think theres much room behind the bumper to run them from the grill.

[LLH]

well i got a type r, which has type-s brakes with ferrodo DS2500 pads. 15 minute sessions isent a problem on the track i drive on, (3.5km long 22 corners/bends and 450meter longest straight, i got a top speed of 145km/h) and since i dont have any gauges to keep an eye on oil and water temp i think its best to keep it to 15 minutes at a time.


-It would be intresting to see how hot it gets inside the wheel/around the brakes, and how much a duct with a hose cools things down. buy some cheap outdoor temprature readers and put them in there :D On my type R bumper i would just use the foglight hole i think..

[Jukka]

problem with using the factory foglight hole is that theres not enough clearance to get a smooth peice of hose/velocity stack in behind there before you run into the rad support. I'm gonna go out and buy some small diameter brake duct piping from my buddies race shop and see what i can whip up.

[LLH]

Okay, i havent looked into it, the foflight hole just seemed like easy solution :)

[ep3jd]

i think using the holes in the mugen lip would work out ideal

[lbk02si]

I've not done it to my car yet. I've thought about it though.

Here is the best example I've seen. Grassroots Motorsports 2002 Civic Si (http://grassrootsmotorsports.com/project-cars/2002-Honda-civic-si/if-it-looks-like-a-duct-and-sounds-like-a-duct/)

haha, yea i liked the 20/20 rule! but i think those things need a 50/150 rule because they are gonna look like total shit when on the car lol!! i'm glad to hear that its a race car and there for pure function! interesting idea though!

[SHG_EasyE]

haha, yea i liked the 20/20 rule! but i think those things need a 50/150 rule because they are gonna look like total shit when on the car lol!! i'm glad to hear that its a race car and there for pure function! interesting idea though!

Haha seriously. I mean, comon they could have put forth a little more effort than that...

[lbk02si]

Haha seriously. I mean, comon they could have put forth a little more effort than that...

yea thats a big 10-4!

[ginger]

im not going to lie i ran a windy back road up in pa last weekend and at the end of a 15 minute session my brakes were red and hot.

have drilled and slotted with ceramic pads.

was running 25 to 70 mph

im thinking about ducts now

[dkid15]

Larger rotors will do some good. More surface area = better breaking and faster heat dissipation. I got my 5 lug swap a few days ago but really want that wilwood dynalite kit. 12.19" rotors on and EP3!!!

[Lucid Moments]

It can certainly be done and look better than the GRM car ended up, but that at least gets the basic idea across. The hardest part would be attaching the ducts to the bumper cover without resorting to rivets like they did. I guess some sort of epoxy. Or maybe instead of cutting up the bumper cover like that you could use some smaller ducts and put them in about where stock fog lights would go.

[chiwhitesi]

i have prepped my fog light shrouds to accept 2.5in poly hose for my brake ducts. ill then modify the splash shields to hook up to the other end and then that should be sufficient.

[Jukka]

^^ Pics???

[chiwhitesi]

Shortly, i have to pick up some poly hose still.

[Twisted-X]

Shortly, i have to pick up some poly hose still.

Sorry to kick this to the top, but did you ever get around to this?

[chiwhitesi]

Sorry to kick this to the top, but did you ever get around to this?

yeah i have all the stuff in my garage, im just waiting for some warm weather to do the DIY.

[SHG_EasyE]

well i got a type r, which has type-s brakes with ferrodo DS2500 pads. 15 minute sessions isent a problem on the track i drive on, (3.5km long 22 corners/bends and 450meter longest straight, i got a top speed of 145km/h) and since i dont have any gauges to keep an eye on oil and water temp i think its best to keep it to 15 minutes at a time.


-It would be intresting to see how hot it gets inside the wheel/around the brakes, and how much a duct with a hose cools things down. buy some cheap outdoor temprature readers and put them in there :D On my type R bumper i would just use the foglight hole i think..

I would try a higher temp pad before going into a huge project like brake ducts. Ive run on this track a couple times with Hawk DTC70's up front and Porterfield R4 in the back. No braking issues whatsoever. Rear straight is 1.2 miles long, whole track is about 3.5. Never had an issue with the brakes at all doing back to back 20 minute sessions since both my girlfriend and I were both driving the car in different run groups.

We were running the full course config. Basically all the way around the outside. You can see the braking zone at the end of the back straight is hard, into a very tight kink.

http://dailyderbi.com/wp-content/uploads/2009/10/MMC_racingtrack_52908.jpg

[BackroadEP3]

the problem i have found is the space where the tire and harmonic balancer are at full turn. i have wider tires and spacers but still have about 1 inch of space. the only way i see it to happen is to make some custom foam models to make a thin wall transition where the tires are at full turn. transmission side would be a cake walk, the other a lot of work...

[SHG_EasyE]

Def no need for ducts now :)

http://i159.photobucket.com/albums/t131/sohonda_garage/P1090590.jpg

[ep3jd]

That's beautiful

[gtolio]

Bringing back this thread, but with a twist.

I am looking to route some brake ducts in, but have to get them around my intercooler piping.

I am running a Wilwood Dynapro BBK (6-pots and 12.2" slotted rotors) with Wilwood PolyMatrix pads in the front. In the rear I have a stock setup with either Hawk or stock pads, I can't remember.

I noticed some cooling issues (a la a mushy pedal) at the end of a track day. It came on quick which makes me think I overheated the pads, but I'm no expert in that subject.

Anyways, I'd like to do something like the optional DC5 inlets or something. This is what my front end looks like:

http://i34.photobucket.com/albums/d117/gtolio/IMG_0324-2.jpg?t=1312848607


This is the track out here:

http://img856.imageshack.us/img856/8310/hprtrackmap2rgconsultin.png

Where they really take a beating is after the main straight coming into 4 and 5.

[SHG_EasyE]

You can run the ducting under the frame rail for clearance and also use 2.0 or 2.5" duct instead of 3".

You can also run naca ducts underneath the car for an air source like the Mugen RR