Sorry, Im too ******* lazy to copy/paste all the pictures.
Click below

https://www.rx7club.com/1st-generation-specific-1979-1985-18/my-12a-blowthrough-build-up-725724/

 

very nice work Kim!

 

So we can use our used 13a housings for a 12a and the 12a ones for a 10a !
It looks great !
What car is going into ?

 

It's going into my former Daily driver which, due to absurd gas prices, has been degraded to my funtoy.

Pictures in random order.
Where possible I repaired rust or like this antenne hole in the roof, with Tin

Ugly rubber spoiler ripped off, they are rust traps. holes tinned

Rusty wheel arches were fixed, all metal ofcourse. no chicken-net and fiberglass here.

Tadaa no more rust, I would love some plastic or fiberglass overfenders. nothing wild though

All new parts were used in replacing EVERY movable suspension or steering part

7x15" racing wheels, can't remember the name but who gives a **** anyway

Well, they didnt fit at first... Redrill for 4x110mm <--- retarded PCD

Yeah I love white cars, just like my old FC.

I love fixing rust, it really makes my day(Sarcasm) Welding inside the wheelwell, I
managed to get a servere faceburn because there were no room for the helmet.

Fixed, welded a patch on the inside wheelwell in the cabin and added this strengthening plate that I made.

 

Who needs music in a sportscar.

Dua rear muffler set-up - It's actually nice and quiet. Also there's a resonator after the header filled with stainless steel lathe shavings
I still need to make a cover for the top of the mufflers, I'll probably just rivit in a piece of aluminium for the racing look

I also had to make a new lip for the rear hatch, made it in one piece and fiberglassed it smooth.

 

New parts:
Energy Suspension Bushings throughout (**** I hate the Watts link)
Moog steering parts
Eibach Springs, nice and tight
KYB shockabsorbers
Got a LSD diff coming from Wackyracer onhere
Brembo brakediscs
Hawk HP+ pads
Russel Speedbleeders
FD cloth seats
FC oilcooler and 10-AN lines
Needs to get braided brake hoses
I might put a rollbar in it, havent decided on that yet

 

Got my LSD diff today - ohh goody

Also got this little fellow from E-bay, I've been looking for this Retro gadget since i lost my Moose with the sale of my FC
Breaking him in, in the daily driver so that he wont lose all nine lifes, the first day in the Seven
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Good job of your work! Nice..

 

Can't believe I wrote this. I have never even seen a 13a housing and it would be hard to convert it to a 12a housing

 

Hehe, If I'm not wrong(I can't be wrong with a statement like that) Mazda did make 13A motors.
I swear I've read it somewhere on the forum.

 

Yes, they did for the R130 Bertone Coupe with front wheel drive.
The trochoid dimensions are totally different. They are the same width as a 10a but the rotors are bigger so the housings are higher.
That's why I said "it would be hard to convert it to a 12a housing "

 

Man I feel so smart now
The 16X prototype engine has 70mm wide housings/rotors, same as 12A engines, but it has "longer stroke" just like the 13A.
Im guessing at least 270hp N/A with more low end torque than ever.