94-97 1.8 swap using Megasquirt
 

I'm looking to swap my 1.6 in my 91 to a 94-97 1.8. If I get MSPNP installed first, what all do I need to swap over the motors? Sorry in advance if I'm in the wrong section.

nothing.

there's nothing special about a 94-97 that would require anything different in the ECU.

I mean what parts do I need to do the actual swap? Only the motor mounts or nothing but the 94-97 motor? I do plan on doing the 99 head swap way down the road after doing the motor swap.

Flyin Miata has a kit for you.

That kit is on back order. My question is will the mspnp run the new motors electronics? If so then is all I need just motor mounts until i do the head swap?

what new electronics? the coils?

you'll reuse the 90-93 coils.

the biggest difference will be the idle valve and vTPS if you run the 1.8L TB.