Or, like the nose up pitching moment which can be generated by a higher powered propeller machine at high incidence (which, in turn, may create some missed approach long stab problems requiring a variable downspring SAS to fix), it can be viewed a bit like an aerofoil, in that the incoming mass airflow is turned somewhat as it rounds the nacelle lip - this generates a change in momentum and a force in the downwind direction. Such effects strongly correlate with the level of forces generated in the particular aircraft under the microscope. I would expect to see much the same sort of effect with a higher powered piston machine - the airflow goings-on are going to be much the same ....
Can't say that I have ever noticed the effect but that may just be a reflection on my inadequate handling sensitivity competence ?
never personally noticed one any aircraft type.
Knowing zzuf well in a past life and holding his handling competence in the highest regard, I am surprised to hear that a chap of his background hasn't observed the effect ... makes me feel a little less inadequate ....