briankelly327 wrote: ↑Wed Aug 05, 2020 8:01 pmTo me - its possible this is totally normal, and maybe due to vapor lock.
Its summer, outside air temp is high and your oil temp is in the 150s, cylinder temps look above 300.
Living in NYC with frequent trump TFRs, Ill often startup with a smooth engine idle, but 30-40 minutes of waiting for clearance at the end of the runway in 90 degree outside air temps, my engine temps heat up the engine does not run happy.
Ive actually resorted to fast taxis down the runway to cool things down, along with vapor lock procedure.
I believe the vapor lock procedure is to run up to 1400RPM, lean mixture, boost pump on, get flow and pressure in the fuel lines and it should smooth out.
I'll try the trick and see if there's any improvement.