hey i am thinking of converting my 1200 ute to a 12a rotary does any one know how hard it is and what 5 speed box goes with the 12a
thanks nick

With the 12A engine, use the gearbox for the 12A engine.

For more information, see Mazda rotary engine swap in our tech wiki.

It's about as hard as fitting a CA18DE. Medium on the engine swap difficulty scale.

all rx7's series 1's- 2's and 3's. and rx3's 4's and 5's. cant tell you bout engineering as it changes so often. there is a link http://datsun1200.com/modules/mediawi ... =Mazda_rotary_engine_swap

maddat are currently fabricating a conversion kit for a 12a rotor into a 1200 could give them a ring

Moroso sells the oil pan for Datsun 1200, so you can use the stock crossmember.

Gearbox crossmember is really easy to do.

That leaves motor mounts as the only tricky part and it's not all that difficult (so the guys who have done it tell me). The tech wiki has an overview and photos.

you have to mod the tunnel for the clutch fork and the rotor gearboxs are a bit fatter so the middle of the tunnel needs to be made taller, the gearbox cross member is piss ant easiest thing to do you could probably use a maddat ca18 crossmember. for the motor because the eccentric shaft is up higher in the motor (compared to a piston engine) it has to sit fairly low, most people use the front mount system so with the a12 crossmember you just chop the a12 mounts off and you have to cut out the crossmember where the 12a sump sits (and re-brace it) so you get your 15mm clearance or what ever it is. for the front mount you just buy an rx3 setup and mod that or make something similar. also you can do the shifter extension mod so the shifter doesn't sit so far back in the cab

there's a bit to it but if your handy with the tools should be no drama, as for it being legal nowadays wouldnt have a clue

hey i have just done this conversion pretty much what lethal john said but i kept the original croos member just cut the mounts off