Re:Ball Bearing vs Conventional - ssautochrome rip-off
 

how would one explain turbos with coolant AND oil passages then? I mean coolant is obviously there to cool the urbo down some (more) so it would stand to reason that the oil is there for...well, lubrication...

Re:Ball Bearing vs Conventional - ssautochrome rip-off
 

^^^^
oil and water(coolant) cooled turbos are fine.

the oil runs through to cool and lubricate.
the water just helps dissapate the temperature charge.