lol you quoted something from wikipedia about valves and intake manifold. its the exhaust wheel that comes off not the compressor. yes i know they are connected by a shaft
i didnt see pics of craigs turbo post failure, wish i did! haha
anyway, scotty is onto something, with the common failure of boosted RB turbos, they would 'probably' fix that problem knowing that people mod their cars. i think our turbos are more robust than people think. personally, i think most of the problems come from people in japan not performing regular services thus the oil loses its lubrication properties and the turbo fails. the engine is probably a little more leanient to bad oil, but turbos get hot and there isnt much room inside the oil channel so gunk can build up and create problems.
thats MY opinion anyway