I think??? things just get heat soaked once there is no air flowing

Don;

Are the pumps at the lowest point of the fuel system before the pumps? Are they at or near the bottom of the firewall. If the first answer is yes, it is likely heat soaking after shutdown.  The coolest place in the cowl after shutdown is at bottom.  I have the pumps near the bottom the firewall and gravity fed from the supply. Did lots of tuning on the ground to high coolant and oil temps and never had a cavitation problem.

 

    For all of you that have successfully tuned your engine and are flying, did you do all or most of your mixture tuning in mode 1.  I may be making this too hard. 

Before changing the default table entries you’ll want to work with manual mixture adjustment and try to set modes 3 and 6. Run it up to just below staging and adjust mode 3 to get the mixture about right.  Anticipating the big difference in injector size; maybe do that mode 3 adjustment with the mixture knob at about 3 o’clock.  Then go to mode 6 and try to adjust to get it to just cross the stage point smoothly.  You’d expect it to go too rich, so be ready to swing the mixture knob toward lean to keep it running. Re-adjust mode 3 later when you can run the range if it seems appropriate.

 

Then do rough tuning of the correction table values with mode 1.  Unless the corrections are way off, you may find it easier using mode 9 at each increment of manifold pressure; or go directly to auto-tune.  In any case you need an O2 sensor display, and you’ll want the mixture correction table display working on the EM2.

 

These are just my thoughts.  Tracy is the expert, so his comments would take precedence.

 

Remember – tenacity and patience.

 

Al