Custom FD Front Brake Ducts
 

I'd like to gauge interest in custom hub side brake ducts for the FD.
The design will be similar to the CWR/Triple-R parts, made to mate up to a 3" brake duct hose.
Cost TBD depending on how many are interested, but expect high quality finish for both exterior and interior surfaces.
I will update with the actual design concept later this weekend.

Thanks,
Joey

Images for a general idea:

https://cimg3.ibsrv.net/gimg/www.rx7...714bb4faae.jpg

CWR Brake Ducts


https://cimg4.ibsrv.net/gimg/www.rx7...cb007e6b56.jpg

I'd be interested in something like this dependant on price,fitment and clearance

Interested!

Interested.

The plan is to fit 18x10.5 wheels at minimum, but I expect you could run whatever you want as I won't design any of the hard parts to extend much outside the rotor diameter.
Anyone interested in the duct transition piece that would fit up to a 99 spec front lip as well?

Very interesting.... Depending on price and clearance, I may be interested in the both items mentioned.

Interested!

A kit like that would be great.

interested as well

Interested

Totally interested. Would need the front ducts for sure.

I'm trying to figure out how to duct this with pre 99 spec bumpers with dual oil coolers

interested in both!

Run a splitter across the brake duct guiding air below the oil cooler. Just like some people do with v mount setups.

Playing with a few different ideas for the rotor duct.
In order to get a simpler part, and better flow, I'm considering knocking one of the mount holes off the upright. This is probably less ideal for some people since it requires some skill/courage with a grinder.

Would people still be interested if you had to modify the uprights? Or would you like to see the design work with the stock mount points (all 3)?

More complex, works with OEM mounting:

https://cimg3.ibsrv.net/gimg/www.rx7...d68c1e34ee.png
Stock Mounting

Simpler, requires grind-o-rama:

https://cimg4.ibsrv.net/gimg/www.rx7...7b779b4f5b.png
Modified Upright

Wider market if it fits all 3...I'm interested in a stock-non-modified application.

Also interested in the 3 hole version.

Couple suggestions...

1) Keep all three mounting points.
2) In order for "best of both worlds" could you just have the mounting spot exist on the two hole design - but be accessible through the duct?
3) Consider having the duct angled like the CWR ducts so the duct hose doesn't need to have a 45degree bend in it.

Other then that, keep up the good work!

-M

I'll see what I can come up with to keep the part cost down, inlet/outlet areas similar and maintain the 3 hole pattern.
I've kept the overall part height as small as possible to make the tooling cheaper, as well as make the parts more versatile for wide wheel applications. I think it is probably smarter to have the duct attach to the a-arms with some slack than include a bend in the hard portion of the duct. If I were only designing this for a singular application I would definitely make the hard portion of the duct longer and hug the wheel/tire.

Routing would be similar to this, but less zip ties to the struts and more tie downs on the arms.
https://cimg8.ibsrv.net/gimg/www.rx7...a471dd0f95.jpg

Yeah - I'm with you. I was picturing a hose coming off the duct at an immediate angle. This changes my opinion. :icon_tup:

Interest here :nod:

Interested as well :icon_tup:

Very, very interested.

Some suggestions:

- Keep the three hole design, but widen/spread-out the entry into the rotor eye so as to preserve the same 3" cross-sectional area as the hose. If the area is the same at each point, it won't throttle airflow.

Extra credit ideas:

- Provide a fitted entry duct as well. Here is an example of what I mean:
https://www.rx7club.com/3rd-generati...5/#post5619354

- There is one problem I haven't seen anyone try to solve - routing the hose past the sway bar mount usually means the tire rubs it (and unless it is wrapped in sheet metal, wears through it) when at full steering lock. A solid duct piece could be designed to fit, at the sway bar, with circular entry, a flattened cross section that preserved the same cross-sectional area as the hose past the area where the tire could rub, and a circular exit.

So the entire ducting solution would be a fitted entry duct, a piece of hose from this entry to a middle "flattened" piece at the sway bar mount, and another flex hose from the flattened piece to the rotor eye entry. If done in this way, I think the flex hose would last a lot longer.

Interested!

Interested depending on pricing and fitment for a re front