Posted for "colyncase on earthlink" <colyncase@earthlink.net>:

 I have a pair of the bigger compressors but haven't flown yet.
 If there is anything to this turbine stall theory, I wonder how adding a
bigger compressor affects the problem.
 I would think it would make it worse since the bigger compressor would likely
have more resistance.
 
 On the other hand, I don't think there has been a report on this thread that
could be confirmed as
 a turbine stall (e.g. ignition ruled out and higher rpm fixed the problem for
example).
 
 Colyn