Ball bearing turbos are nice to have, but the unit I have now is freshly built and the wheels are custom for the application I'm using. I mean, my turbo now whistles at idle and spools just as nice, so the semi-laziness is now a thing of the past.c-rad wrote:You know they make BB center sections now for the T-series turbos... one of those would eliminate all that laziness in between shifts. Right now http://www.thespeedfactor.com has complete 50-trims with the .48 housing for $875.