Need help finding replacement front rotor vents
 

Hello gang,
I am new to the RX7 world on only one year into it.
My son and I have lucked into a 82 RX7 last year that has lived most of it's life (our understanding) as a race car I think I heard SCC so something like that. It is now a bit old and tired and we have run it in one 24 Hour of Lemons race at Sonoma Raceway and had loads of fun. We a getting ready for another race at Sonoma in 2 weeks and were doing the brakes and rotors and noticed that the right site brake vent backing plate was missing the attachment duct.
We do know that the front axle has been 100% or partially upgraded to 1985 parts. But in lookin into the parts list for a 1985 RX7 brake vents were not stock, So i am posting some photos of what we have on the left side hoping someone will know what these are from.
https://cimg5.ibsrv.net/gimg/www.rx7...49a97155a8.jpg
https://cimg6.ibsrv.net/gimg/www.rx7...00d1d2e89f.jpg
https://cimg7.ibsrv.net/gimg/www.rx7...97c191b288.jpg

Those are definitely not stock.
I'm guessing you're missing the passenger side?
If you don't get a response here, post in the 1st gen section. Probably more traffic in that sub-forum.

Yep right side is missing the attachment duct is missing
I will try the first gen section

Those are not stock. Back in the day things that were available from Mazdaspeed and other aftermarket suppliers. You probably need to fab something up. The part that connects to the hose does not need to be that elaborate.

FWIW -- top are aftermarket brake ducts I had on my '84 GSL-SE front brakes, that I may have bought from Mazda Competition (memory fades). Below is a comparison with stainless ducts I fabbed for my larger "home made" system.

The Mazda Competition PN was inconclusive during my search, but:

1. You could check with Mazdaspeed Motorsports; somebody there might remember who the supplier was

2. They're not hard to make


https://cimg7.ibsrv.net/gimg/www.rx7...a5e5a41d16.jpg

https://cimg8.ibsrv.net/gimg/www.rx7...160ffc0233.jpg

Thanks for a the replies, but think have an easy solution.
I found and purchased a 1985 RX7 that had the big bearing front end and when i did the swap i found that what looks like the factory dust shields have vents built into them as can be seen in the photos below.
So my plan is to weld round vent connectors onto these vents.
https://cimg0.ibsrv.net/gimg/www.rx7...d20dad9409.jpg
https://cimg8.ibsrv.net/gimg/www.rx7...96141c1c0f.jpg