I searched already, Ithought for sure it has been discussed, im still sure it has I just couldnt find it, So can u use TII housings on a 12a engine?

 

No.

 

YES

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

 

^ LOL not everybody is as fortunate as you! Neat idea though!

 

TII rotor housings are wider than 12A rotor housings. You would need a TII eccentric shaft and rotors, flywheel, counter weights etc

 

^ so really you would need a t2 motor.......

 

Again, NO you cannot without modifying the housings. The housings on the first gens have the coolant seals in them, as the 2nd gens have the coolant seals in the irons.

12a irons (no coolant seals)
TII Housings (no coolant seals)

You will find out pretty fast where all your coolant goes.

 

thanks for the help.

 

just drop a T2 in it.
haha easier then trying to make 2 different things fit.