interested currently on feed bumber 99 spec

I like what I'm reading! This is a great initiative.
Those original CWR ducts (and the pics) are mine. They are currently on my car. I'm good friends with Pete Hahn and we have both struggled with front brake ducting for many MANY years.
I ran dedicated front ducting using the horrendous POS NTech welded backing plates for a few years with hose to a front inlet. On the street they are unuseable as tires will wear through the hose at the first full lock turn.
Pete cobbled together a bandaid with the vette ducting piece which does work.

For the benefit of everyone watching here's was my track setup (worked VERY well on the track but not at all on the street): Triple-R: Dedicated brake ducting

Your 3D printed original backing plate looks great - keep developing it.
To summarize to make an effect "kit" you need the backing plate, the "vette" style hard tube to get by the sway bar (THIS is the critical piece IMHO), and the inlets to fit whatever bumper style you have.

Keep going!!!

Regards,
Crispy

I'm interested too thank you. A 3 bolt pattern for 99 Spec would be my specific interest. Thank you for putting this together.

same 99 spec

Also interested.

'93 bumper, 18 x 10, +50

Any update on these?

Those look like the ones N-tech used to sell.

Looks like Built 2 Apex has a complete solution, but looks like they are out of stock at the moment.

https://www.built2apex.com/product-p...ke-cooling-kit

That's pretty slick. I'm in for a set of those when back in stock.

Sadly, everything on their site is out of stock...

Those look great. The only problem is; they're vaporware. They don't exist and never have outside a snazzy render. That picture has been on his site with a February 2019 release date for over a year.

B2A has had nothing but problems with product fulfillment. 3-6 months for delivery and maybe it'll fit, maybe it won't. I know it doesn't get talked about much on the forums, but there is a line around the block of people with far less than stellar experiences with B2A products. I hate to bash anyone supporting the platform, because he does have a lot of positive feedback. But I'm EXTREMELY leery of anything from this guy - especially something that's "too good too be true" like this brake kit.

Well lets see what happens I just placed an order they have a covid delay warning but he was quick to respond to my emails regarding custom ducting for my bumper.

Please post updates and pictures when you receive the kit. Highly interested how it turns out.

Matt

I got some OE Corvette ducts but have yet to install them. Not sure if they are thin enough for full lock to lock turning. But for $50 it's worth a try.

https://www.corvettemods.com/C6-Corv...r_p_15908.html

i tried the Corvette ducts. Had a real hard time fitting them with either the stock w/w tank or rad overflow tank installed. Will try to post some pics

Corvette Ducts
 

Got a set of C5 ducts

https://cimg6.ibsrv.net/gimg/www.rx7...41996e6d6c.jpg

Had to mate the end (right side on the above pic) to the napa duct i had installed on my lip opening. Problem No 1 is the corvette duct opening is ~4" and the napa duct is 3". So i went to HD and got a 4-3" HVAC metal duct

Also trimmed some of the end for length (having added about 4" with the metal duct). Ended up with this

https://cimg8.ibsrv.net/gimg/www.rx7...f97c0e64d8.jpg

First duct i fitted was driver side. I had previously removed the ww tank which was my meth tank which i had relocated to the hatch and i didn't really have a need for ww fluid so i just left it off. Without the ww tank, it fitted pretty good

https://cimg3.ibsrv.net/gimg/www.rx7...26ea6fd4c9.jpg

And plenty of tire clearance :icon_tup:

https://cimg0.ibsrv.net/gimg/www.rx7...cabf3dcbb6.jpg

Problem No. 2 was fitting the hose to the duct. I tied it using some wire through a hole in the duct and then wrapping around the wire reinforcement in the hose. Then i duct taped it for good measure. You can see that handiwork above

Problem No. 3 was the passenger side. Problem on that side was the radiator overflow which got in the way. I don't have a picture on that side, but here's what i'm getting at. The overflow tank created a pivot on the hard duct that either pushed the end at the wheel too high, or the end at the napa duct too low.

https://cimg2.ibsrv.net/gimg/www.rx7...d8a6f93b84.jpg

I thought about a 2nd hose from the napa duct to the corvette duct, but i really couldn't get it to work. So i just tapped a hole on the wheel well and secured some hose (mashed down real good) with some pipe hanger. It seems to work, but think it's less efficient airflow than the driver side.

https://cimg7.ibsrv.net/gimg/www.rx7...10d47b074e.jpg

Somebody really needs to devise a solution on this (Sakebomb/GA????)

Anyone interested in being a test mule for a set of these? :ponder:

https://cdn.shopify.com/s/files/1/00...G?v=1589867039
https://cdn.shopify.com/s/files/1/00...G?v=1589867039
https://cdn.shopify.com/s/files/1/00...G?v=1589867039

I have them in stock but wanted some proper feedback before official release. PM if interested. :icon_tup:

:bigeyes:

Question regarding those brake@garage alpha, how far out does it “scoop” outside the wheel? I guess what I mean is, wheel fitment can affect the function of these if you’re running some insane set up year? Otherwise, hot diggity I want some.

Matt

These attach to the backside of the hubs - replacing the OEM dust/splash shield. So wheel fitment sould have no effect on fitment as far as my early morning foggy brain can tell. :sleep:

Maybe a photo would make something click for me... but I just can’t visualize wheels selection effecting fitment of these. :icon_tup:

Can’t really attach a photo but maybe I can rephrase: the scoops on these ducts have a set amount of “reach” to get outside the wheel in the wheel well to scoop in air. If you have more back spacing due to a wider wheel and offset selection, the wider wheel could potentially cover up the scoop and eliminate the effectiveness of these ducts. Some measurements of how far and where the ducts are located in relation to a mounted wheel could aid buyers with more aggressive wheel/tire sets than stock in knowing if these will fit.

Matt

I'd be curious on the air flow in the wheel well. It'd be nice to attach an anemometer on the intake of the duct to measure air flow

interested

You'd need a pretty aggressive wheel setup to block these I would think.

https://cdn.shopify.com/s/files/1/00...G?v=1589922979
https://cdn.shopify.com/s/files/1/00...G?v=1589922979

From the hub plate to the outer edge of the scoop is 7.5in.

It's not just the wheel, but the wheel well and other obstructions in that area. It's not in a direct air path

Maybe.

We have a couple guys lined up right now for testing on track and street cars. It may not get as much air as a system using NACA ducts and duct hose... but I’ll say this is a simple bolt-on solution that doesn’t require any other modifications and should provide additional airflow and cooling to the brakes.

An adapter for duct hose wouldn’t be out of the question either. :icon_tup: