I am in the process of getting a datalogger setup. Would rather know what the present setup is doing rather than throwing $$ at it without needing or knowing what direction I should be going.
I know it sounds like alot running 20 psi, but at high altitude (6000' and up to 10,000') you lose alot of compression in the motor from the start. Running 20 up here would be like running 17-18 down at sea-level. Plus up here there is less burnable oxygen so you actually run richer up here if the ECM does not correct properly. It still sees the same amount of airflow...just more nitrogen & less oxygen...but as we all know nitrogen does not burn.
Tuning at high altitude is very different from sea-level. I have learned that the hard way more than once!!
I truly appreciate everyone's input. Datalogger software and connector is on it's way.