losing manifold pressure at altitude

[SkyKing]

Just curious if those of you who are having turbo problems have reached into the compresser side and felt for axial play in the shaft and also inspected the impeller for nicks, etc? For the rear turbo this can be accomplished by loosening the clamp that holds the rubber bellowed boot onto the compressor side, i.e., the "AIR" side. for the front turbo, you need to remove the air cleaner and the inlet scoop from the front cowl to gain access.

Let us know what you find.

SkyKing