Would NOT advise to run a tank dry in an aircraft fitted with GTSIO- engines.
The result from the surging may well be a crankshaft counterweight chucked thru the case, NOT a happy thought.
Overhaul cost, 'round about $35,000 including a new case. No insurance coverage either as TCM have a service bulletin about this (and related) subjects. These engines have good reliability IF operated properly.
If improved performance is desired from the 404, GTSIO-520K engines can be fitted under STC. These provide 435hp at takeoff and were originally offered on the AeroCommander 685.
Also would definately agree about Dart engines, they are very reliable but traps are there for the unwary. RR engines are one fine piece of machinery.
[ 05 August 2001: Message edited by: 411A ]