they all went bang because of the rollerbearings being eaten by the engine, after some research it showed that the axle was giving way when you go off throttle (up and above 2 bar or 28 psi or more)
Turbinator, Were you running a Dumpvalve on these cars?
Karls, Martins, and my Turbo that did the Gumball have had NO problems at all in the cars....all running over 600bhp reliably. Not heard of any problems with these Turbos at all apart from what YOU have alledged happened. They DO need to be watercooled and run dumpvalves though.
Be interesting as more and more people use these Turbos and I think you will be proved to be very wrong!