theshodan
Turbo Design Specialist
Not as laggy as you would think. I have the stage 5 wheel, and its a Garret 360 Race center section(which to my reading is a dual ball bearing). I also have head work done. Ill let you know what I get full spool by once its through the break in period and tuned. But before the new motor I had full boost by 3900 rpms( but I was only running 18 psi at the time). Ill keep you all updated.
A 360 degree bearing is not a steel ball-bearing cartridge. It is simply a bearing that has oil journals on more sides of the bearing to shaft than a 270 degree. The difference is about 30K miles. On the larger turbine shafts it is a little more important because of the surface area, but journal bushing-type bearings and steel ball-bearings are different altogether..
Patrick4588 PM me, let's look at additional options.