Rotary Turbos and Turbo bags!

[RICE RACING]

So I changed out my turbo a while ago but never shared why I say turbo bags are a kuuuuunt @! on turbo rotaries, here is why....

Perfect tuning, egt never over 950deg C (front and rear same) on up to 36psi boost pressure, see EGT probes conditions after 3+ years and 30,000km of running at ~600bhp for most of this time

This is what will happen to a high nickel content turbine housing when insulated with a turbo bag! LONG TERM! I appreciate not many people in the rotary don't have the ability/skills to run cars at high power like I do and over multiple years and 10's of thousands of kilometers but so you don't have to read about it in a text book or some crack pot internet theory here is the proof from someone who actually has done this

Inconel turbine wheel fine, no housing warping, but very high degradation of the tangential divider and inner and outer surface of the turbine housing as you can see in pictures.