Car is N/A. Driving around the city afrs are a normal 12.6:1 at WOT upper RPMs, seeing close to 100kpa. When I go up about a thousand feet in elevation to spend time in the mountains I'm seeing 13.-13.4ish to one and about 92-95kpa depending on the location.

Question is... Do I need to be running around 13:1 at WOT when at altitude or is it safe to run leaner because technically it would be like doing 90% throttle at lower altitude? Say you went to 10,000 ft and your max is 60kpa at WOT... Would it be safe to run the engine at like 14:1 at WOT? Trying to get a handle on this stuff. Thanks.

 

Just as an FYI, if you have a ms3pnppro, I did a write up how to on how to enable and use / tune the barometric correction sensor and table.

https://www.miataturbo.net/mspnp-55/...pnppro-100722/

 

That's the right thought. You wouldn't need to be as rich since it would be effectively "less pedal" in other elevations like you said.