but they were temperamental and more expensive to manufacture. Over the years journal bearings have improved to the point that there's basically no difference. The turbos in the VR30DDTT are journal bearing, as are most small frame turbos. It seems like larger turbos still use ball bearings which really seem to have more to do with the mass of the rotating assembly and the dynamics of a car. Especially when turning the heavier rotating assemblies will have much larger gyroscopic forces.
These days it's not something I'd look for one way or another.
-Dan
"Capitalization is the difference between helping your Uncle Jack off a horse, and helping your uncle jack off a horse." "'she' also likes to swap since I think I am going to need to give her to woody again." - Dvlhntr "full alphabetic boost mode" - ChristopherTheOne " Purrs like a sexually satisfied black panther." - BigTDogg "Two oil eating, angry, spinning triangles of death." - turtleboy on rotary engines
