Re:How well does oil flow through the turbo?
 

eh, I've cleaned lots of junkyard turbos, I just spray carb cleaner and brake cleaner in the center section. I just douche the ---- out of it. Then I blow it out really really good, Then I usally just hand pump a couple quarts of oil through the thing.

One time I did this, and I ended up with alot of shaft play after I was done.. but that was just one time, and I dont know what happened, lol

Re:How well does oil flow through the turbo?
 

I thought this was funny,

I would not worry about it. If it spins fine, with no play, it should be fine. After it is in the car, the hot oil will clean anything out, if it needs cleaning. I know when I was trying to see what holes where for what in my turbo, back in the day when I knew less, I tried the water in and outlets, and the water ran in and out fast. I could see it coming out the other hole. But the oil is probably different.

Re:How well does oil flow through the turbo?
 

How many degrees from straight up is ok then? Also as long as its angled down enough for gravity to pull the oil through and into the return line, what is it about the midsection that won't cool right at a 40 degree angle (50 if your thinking horizontal at 0)?

Re:How well does oil flow through the turbo?
 

On Whitey's TT setup he had them angled a lot and they worked fine, aske him, maybe he'll tell you exactly how much they where tilted