[CSG Mike]

Originally Posted by venturaII

If ball bearing turbos didn't have supplemental water cooling, they'd fry themselves because they don't have the volume of oil flowing through them to remove the heat that a plain journal has. Journal bearing turbos aren't a bad option, provided there's been a way to remove the heat from the oil that the turbo adds to the system, overall. And they certainly simplify plumbing requirements.

and can handle RPMs ball bearings cant