The turbo bearings are pretty durable, but cleaner oil can't hurt.
Were you thinking of using the bypass as the sole source for the turbo feed?
How are you going to run the plumbing, in parallel with the B-P as a T off the feed from the pump?
I'm not sure how much oil pressure you have, or can afford to lose, so restricting the size of the bypass will still be needed, unless its output goes back into the main gallery like the F-T.
I had started telling tlowe that this was for a bypass filter setup, but never got to mention that I have no turbo.
At least not yet. Though that manifold on ebay is tempting.
(I'd have to figure out the t3 or t4 part first)
So anyway, this has been all about the plumbing for the time being.
Is it a problem robbing oil from the engine for the turbo bearing? I know the high volume oil pump is out of favor but this sure seems like a good use for one.(In my 194 the Hi-vol pump took out the bushings in the old dist, but the HEI seemed ok- btw: that engine went 180K on a rebuild for total of 320k miles, I think the hi volume pump helped)
If using the oil sender hole as a source can you really rob that much oil from the engine?
It has to go through the plumbing and a 6 micron filter.
Probably a pressure gauge at the turbo bearing would be in order.