@richboy2307 thank you very much for the quick reply! I appreciate it a lot. However, there are still some conflicting inflammations.
@Dudley Henriques Thank you very much for your valuable feedback. Do you think this is correctly simulated in the iniBuilds T-33? Because what you describe is exactly what I miss in the sim. There is zero lag in the iniBuilds T-33 when you set power from idle to full power. As @richboy2307 says "...[the engine] will spool up from idle within a few seconds". I just tested it again: With the engine at 20% RPM I can accelerate to 50% RPM within a second. Which is contrary to all reports including yours.
The author of the AOPA pilot report also flew a CT133 Mk3 Silver Star with the Rolls Royce Nene engine (the same airplane type as Greg's Acemaker) and wrote the following things:
"Do not advance the throttle too rapidly at the beginning of takeoff. This can destroy the engine because of an inherent limitation of the centrifugal-flow design. It cannot process inlet air fast enough at low airspeed to prevent the excessive exhaust-gas temperatures that can result from rapid throttle advancement."
"Because of limited power available at low speed, accelerating out of slow flight using power only (and not diving) is agonizingly slow. You move the throttle fully forward and not much happens. As airspeed builds and additional ram air enters the engine, power and acceleration increase."
"The problem with this is that when the engine is at idle, it can take 15 seconds to spool up to maximum-available power in the event of a go-around"
None of this can be replicated in the sim with the iniBuilds T-33. It basically behaves like a modern jet engine.
@Alan_A That is very true. We don't have much information about the modeled engine. However, from what I've read the Allison and the RR Nene are basically identical. The Nene has around 10% more power but otherwise they share the same design principles and face the same limitations of a jet engine with a centrifugal compressor. So I would expect the throttle response to be very comparable to the J-33.
Greetings
Tim