alathIN

My project car uses the powertrain from a 1992 Miata.
I wired the car from scratch and am in the process of setting up my Microsquirt ECU.
Assume I know nothing about ECUs and you won't be far off.
I am using (mostly) the stock naturally aspirated intake setup, except I have deleted all the MAF gear and its ducting, using MAP and IAT with a much simpler pre-throttle setup.

Where I'm at:
I have been working through the Megasquirt2 setting up guide, also referring to the Megasquirt Tuner Studio MS Lite manual. Setting the engine type, sensor calibrations, etc.
I have my first attempt at a tune on my laptop, ready to burn to the ECU (I think), and then proceed to testing ignition and injection.

Came here hoping to get review of my process and any pitfalls I may be heading blindly into.

Process:
I downloaded a few basemaps and decided to base my tune on a file called '91 Miata 240cc injectors.msq' that I downloaded from here https://www.megasquirtpnp.com/mspnp2_maps.php
This basemap is NOT from the same version of Tunerstudio or Microsquirt that I am using.
I went through all the Tuner Studio settings and found the ones with implausible values or warnings of "this feature has changed in the current version" and either restored the defaults or entered Miata-specific values I'd found, mostly in the DIYAutotune pages.

Does it sound like I'm about to walk off a cliff, or blow up my car?
If anyone has a recommended MS2 basemap/tune for a standard 1991 Miata 1.6L they are willing to share, please do so.
If you're able to load my tune (attached) and give it a look-through, I'd appreciate that also.
Grateful for this or any general advice.

curly

iTrader: (25)

Idle is too rich*, cruise is too lean*, WOT is too rich*, WOT ignition is ~8 degrees too advanced, crank to run taper is incredibly short, fine if idle is perfect, but you might get frustrated with it dying right after start up at the beginning. Fuel table is set up for up to 18ish psi, ignition table is only good for naturally aspirated engines, but thats a future problem. I don't go much below 95ish% on MAT air density table, yours goes down to 74.EGO has (IMO) too much authority, won't correct idle, and is only narrow band.

Otherwise, NPF.

*If you tune your fuel table to match AFR targets

alathIN

Update:
I'm sick and it's been less than 10 deg F in my garage so spending a lot of time reading and watching videos etc.
Found some answers to some of my questions and also got some answers to questions I didn't know to ask.
Overall I think I'm getting too granular too early in the process.

Right now my biggest question is whether I will need wideband to be able to get a decent tune. I'm not going for lap times or max performance here - my goal is for the car to drive about like an NA6 that lost 300kg extra weight.
But I suspect I will need to add wideband at some point.

curly

iTrader: (25)

You need it, absolutely.