hey i was wanting to know if anyone could answer this question for me.I have a 93 mx-6 v-6 2.5 litre the engine smokes a little, but i want to swap that engine out for the supercharged engine and transmission out of a mazda mellinia along with the ECU and fuel pump.Would this be a simple swap or would there be alot of fabrication that would need to be done???or if you know anyone who has done this already.Could someone please help me with this or point in the direction of getting an answer any info would be greatly appreciated

 

if im not mistaken... it should be almost a direct bolt in, engine wise and trans, you might have to mod the wire harness a bit depending on how they line up. the only big problem the 2.3L sc has is they are a vaccum nightmare... the supercharger heats up the vacuum lines to the point they dry up and crack, causing multiple vacuum leaks, which will set the mil...
but if you do the swap, run silicon vacuum line and run them away from the supercharger as best as possible

 

Since the 2.5 fits in the mx6 and the millenia, swapping a complete 2.3sc setup really shouldn't be overly troublesome. Mounts should all bolt up to the mx6. I would suggest looking into the cv axles and the transverse member, as they could be different. And, since the 2.3 is millenia-only from factory, i'd be watching for hood clearance. Shifter, see if it's the same, and shifter cable, if there's a difference, you could face some trouble. just guessing on that.
That's the only issues I could see coming up at the moment...
I've never heard of this swap being done, so good luck if you go for it!