my plan is to swap my 12a out of my 84gsl, and put in a 13bt...is this going to cause me much trouble? i wouldnt think it would be, but i am pretty new to this whole "rotary scene"...but so far i like it, i love the hell out of my rex that i scored for 400 bones...

 

I am not really familar with the 1st gens but i am gonna assume that you'll need to swap trannies to. But it shouldnt be anything out of ordinarily difficult.

 

You'll need to change the front cover,oilpan,and motor mounts.The wiring harness,ecu need to be changed.Fuel pump also.The driveshaft will probably need modification.You'll need to modify an intercooler, preferrably front mounted.I'm pretty sure there is more.