Kuehl - MTBF Data, yes I have it - for the anyone that doesn't understand what that is : Mean Time Between Failure (MTBF).
To be honest I have to force it to fail. I ran one unit at 80k (it was rated for 60k) for 27 hours before it failed, bearing failure. I replaced the bearings and ressumed operation. No shaft damage, no compressor wheel issues. I did stop as soon as it began to seize, I did not run it till it imploded. Guess how much boost I was making at that level, hahaha.
Moving on:
I am aditing the post, so you might want to go back to the begining and scan along. Tossing in some early dyno data.
I will post additional response and answer current batch of questions till then go to my website for additional information.
Website I will supply is my Blog, has dynos and details and pics, etc... I am working on updating it. I have been busy building units.
http://hausbrauen.blogspot.com/
I have a commercial website, but thats under construction.
You can read through the information over their.
It will answer quite a few questions.
I will prepare a proper response here in a few minutes.
Also look on page one the post that talks about boosting a S2, has a set of skulls at top "hear no, see no, speak no evil" It shows an example of a package and what would or could be included.