Before you refer me to search, I must mention that I did search and still not found concise answer whether IMS is an issue on turbo motors, much like it is on the non turbo.
So, can someone please refer me to good source of IMS related info.

P.S. it seems that Turbo engines have non ball bearing design that is more reliable, so nothing to worry about?

 

I wouldnt worry about. Different design. Its verry rare.

 

LN Engineering pretty much wrote the book on IMS issues. Click around on these two links and you'll probably learn more than you want to know.

http://imsretrofit.com/
http://lnengineering.com/products/ims.html