[Shane@DBPerformance]

When something goes through the turbo and does that kind of damage, it often blows the seals also since the shaft gets so tweaked when the wheel slams into whatever.

Does the compressor side look as bad? I would think that if all the damage was caused by up and down shaft play from blown seals or a bad build, then the compressor wheel would be eaten up also.

I have seen turbos that look almost that bad work fine also. I made 460whp with a turbo that looked like that, except for that one really bad fin of yours. I pulled a turbo off a car once that had a good sized nut logged in the exhaust wheel, I had no idea where that came from. Which came first, the chicken or the egg is your problem. 20Gs are usually almost bullet proof.

Any chance you had an EGT probe that fell apart? Or were you running too low of timing too much from a timing belt being a tooth off, base timing too low, lots of knock retarding the timing under boost, too much use of anti-lag or whatever and ended up melting the turbine wheel.