jacobzking

I looked here for brake ducts install guides and parts here before and didn't come up with much. Kognition used to make some pretty cool bolt on duct adapters, but they no longer make them... no big deal though.

I have been taking my car to track days about once a month and am always looking for cheap and effective ways to make my car handle better or stop better (I'm happy with the power it puts out). So here's my quick and easy guide to install "nascar style/naca" brake ducts on any 240...

First you'll need some good 3" brake duct hose (neoprene coated fiberglass withstands up to 300°). I went with this stuff ($55 for 10' which is usually use enough but a close fit):

JEGS Performance Products 63105 JEGS Brake Ducting

You'll also need 2 adapters to mount the hose to your brake dust shield, I bought these and just riveted them on:

Allstar Performance ALL42160 Allstar Brake Ducts

The process is pretty simple (I've done some quick photoshopping to show you the general idea... note the adapter will install behind the brake shield unlike on the photo)...

1. Remove tire

2. Remove brake caliper and rotor

3. Mount the adapter fitting as close to the inside of the wheel hub as possible, at about the 2 o'clock position. MArk where you'll have the 4 holes for the adapter and then draw a circle where the 3" opening will be. Then cut a 3" hole (I used a dremel, but a 3" hole saw would definitely speed things up). Again, I chose to just rivet the adapter in to place, but screwing it in would work also. Another note: on the side of the adapter that is closest to the wheel hub, I flattened that side down so it could sit as close inward as possible (the the red part on the photo).

4. Attach your brake hose and use a generic 3" hose clamp to tighten it down.

5. Route the hose (blue drawing). You'll need to route the hose right along the frame so your tires don't hit the hose. I'm running 255s up front and don't have any issues, but it is close. You can use zip ties and zip tie it to the frame in a couple of spots to keep it where you want it.

6. Attaching the hose to your front bumper... This will vary by bumper and how clean you want your install. On my particular bumper, i can mount some duct intake to the backside of the vents:

Allstar Performance ALL42141 Allstar Brake Ducts

Again, I'll post some better photos of the install when I do the other side in a couple of days...

Attached Images

	IMG_5471.jpg (100.1 KB, 521 views)
	photo copy 6.JPG (105.4 KB, 389 views)