Can Megasquirt run two separate sets of injectors?
 

Is it possible to have two sets of injectors installed in a Miata with MS running on two separate maps that you could toggle between the two while the motor is running?

Thinking about LPG conversion where you could start and drive on gasoline or switch to LPG while it is running if you want to. The intent is to run LPG but injected as a liquid instead of the more common vapor LPG systems. It has been done and there are companies out there that sell kits in UK and AU but I can't see paying for a kit. By injecting liquid you get the massive cooling charge benefit when it goes from liquid to gas.

I might start out with a single injector just past the TB to allow the maximum cooling benefit of the charge air, but it might be impractical to tune a single injector due to response time if it fires 4x as often. Pressure would be higher - 300 psi to the injector(s)

Will Megasquirt allow this?

Yes, if wired for it - even MS1 has two independent, separate fuel channels.

Outstanding, I have a (Gen 1?) 94-95 MSPNP that is NIB en route to me so I may even be able to try this out on the current car.