I have a very obvious and regular (every few seconds) misfire if going over 3/4 throttle (around 5400rpm) when straight and level.
Full power check on the ground at 5600rpm is fine (tested for 10 seconds or more), take off and climb out power is fine it's literally if I level off and then try to go full power again it starts missing badly.
The misfire occurs on both ignition circuits tested individually and together which should rule out ignition issues so I'm thinking a fuelling problem? (Unless I have identical ignition faults on both circuits?! lol)
FD CT2K 912 ULS 790 hours
This started after fitting a new E-Props prop, as part of the setup you have to fly full power WOT straight and level to check the engine RPM is at 5500 and then adjust the pitch of the prop if needed to achieve this.
With my previous prop the RPM never went over about 5100rpm and is perhaps why I have not had this happen before?
All T's, P's and fuel flow are normal.
Thanks!