Roger sports were proper dodgy, I drove all the way to derbyshire in the middle of knowhere to be told that my engine and turbo where F^&KED ............??? what sort of an anwser is that, so turned out that the turbo air intake pipe was colapsing on boost, (this was back in 1999 when I was quite new to the joys of RS turbos!) what a bunch of monkeys!!

and how you can not spot that sort of movment on a crank...I do not know!!