RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   Rotary Car Performance (https://www.rx7club.com/rotary-car-performance-77/)
-   -   COSMO(13B-RE) side plates with FD3S(13B-REW) rotor housings (https://www.rx7club.com/rotary-car-performance-77/cosmo-13b-re-side-plates-fd3s-13b-rew-rotor-housings-1161655/)

2tallfor7 04-24-23 05:09 PM

COSMO(13B-RE) side plates with FD3S(13B-REW) rotor housings
 
I have a set of used lapped and nitrided cosmo plates somewhere in storage and a set of brand new rotor housings sitting in my garage. Thinking I might use these to build up a mild single turbo(EFR8374) engine with stock ports for a Turbo II roller I'm about to buy... anyone build using the stock intake ports of the RE/Cosmo plates and stock exhaust ports on the FD/REW rotor housings?

2tallfor7 04-24-23 05:18 PM

Also, can a manual transmission be used with the cosmo plates? I might have a rear plate I can save somewhere in the garage. I think its from an FD.

j9fd3s 04-25-23 08:47 AM

the Cosmo engine bolts up to a manual, although there is a bolt that doesn't line up, doesn't seem to be a problem.

years and years ago my friend built a T2 with a 13B cosmo, and that car ended up being really fun.
really basic setup, it had an S5 turbo with a V trim compressor, NPR intercooler, RB 3" DP and presilencer with a Borla muffler.
ecu was stock with an F-Con and a fuel pump. we tuned it to the limit of the fuel system, about 10psi, and it really felt like a big NA car, sounded great too
https://cimg7.ibsrv.net/gimg/www.rx7...b661acb2a5.jpg
https://cimg0.ibsrv.net/gimg/www.rx7...77aea2d898.jpg

only trick part, really was the FC PS pump on the FD bracket, the pulley was like a day of work with a file (which i didn't need to do!)

the boost control, which was the RB gauge pod things didn't work on the dyno, but it did like 225rwhp at like 4psi or something


All times are GMT -5. The time now is 08:38 AM.


© 2024 MH Sub I, LLC dba Internet Brands