Turns and "the ball"

[RPS69]

Also, if you want to turn better, don´t do it at full RPM's. Plane will become much more stable, and less prone to get into a spin.
The YAW effect Laurwin describes, is better noticed when trying to turn in ROF with a Focker Dr I. If you master turning with that plane, you will do it automatically on il-2.

Also the effect described affects you if you are not with your wings perpendicular to ground. If you put your plane in that angle, you won´t suffer the climbing forces differential, but you will be loosing altitude very fast.

Also, if you try to correct the yaw effect with a high RPM, on the direction where the rudder instead of countering torque will add to its effect, you are far pone to enter into a spin, or be forced to loose more speed on the turn.
Every plane have a better turn direction, unless they are like the P38 with counter rotating engines.