Umm, sure if you want rear brake ducts I can help you with that now- in case you ever check into a four hour endurance race or whatever then at least you're rear brakes will be covered. :tongue:
This is something that requires garage DIY work thou. I was actually working on a new set now that I got Dave's kit on.
So, here's what I did. I just picked up a pair of rectangular
plastic ducts from HRP World that terminates to a standard 3" adapter. I tapped some holes near where the body vent (with the little flap) used to be and put some 1/4"-20 riv nuts in. This gave me a way to affix my bracket, so that I could mount the duct to the chassis in a position whereas it perfectly covers the hole of my Kawagen side skirt when in place. That way, I can take off the side skirt independently of the duct work (my skirt is fixed in place by the under pan) should I damage it without having to finaggle with a hose clamp.
I then routed a 3" X 4' section of 500F
aeroduct brake hose to the rear caliper. For a rear shroud, it is going to depend on what size rotors you are using.
So here is a trick I came up with for the shroud.
For the stock calipers.. you can take the stock metal shroud, and coat it with a layer of release wax, then use the inner side as your mold. Throw a layer of fiberglass mat or blingy carbon on there.. and viola... just a cut a hole and put a little flange on and you have a perfectly fitting shroud with OEM attachment points.
You'll now have a way of having the airflow move evenly across the surface of the rotor... and another advantage here is that composite materials are thermally inert so unlike the metal debris shroud, they won't absorb or radiate the energy. If you really wanted to go ape-crazy you could even put some blowers in-line.
The consensus is that a well maintained set of NA2 calipers with some really good race pads and good ducting performs remarkably well, especially if you put your ride on a diet.
