Yes, one "blew", but I was driving it, so it had an excuse. IIRC, the s/c blew bits into the motor?

Funny, there is a somewhat parallel debate over on the Miata turbo forum on stud installs, loose or torqued down, and what lube if any on torquing any fastener. Corky Bell is a regular there. He wrote the bible on turbo motors, a knowledgable aero engineer to boot, Nate and John.

Corky uses Moly lube on the threads and washer and bolt head. I would too, if I could find it again. The torque value the wrench tells you is a crap shoot. They talk about preload "scatter" at the same torque value due to variability in the variables I noted above. Not quite random, but not very predictable either. Since the entire procedure is done to get a stated clamping load on the head and gasket, I try to reduce the effect of the variables, primarily thread and bolt head/washer friction. Oil the threads unless the book calls out dry.

What you are doing is preloading a relatively inelastic spring, the head bolt/stud plus gasket, to the required clamping force to withstand pressure and suction forces over kazillions of heat cycles in ambient temps ranging from 100+ down to damncold, for well over 3000 hours of use.