sup nogs? well my turbo is on and running, but I have a tiny amount of smoke coming from the center section of the turbo.. at first I thought it was oil on the down pipe but after cleaning it well and letting the car warm up I noticed it's from the turbo itself.. so I have a few questions..

since my setup is a/c compatible, then drain line had to go around the down pipe, unlike a straight downward drain most people run.. could this be causing the little bit of smoke i'm seeing?? it does kind of level off a bit before reaching the oil pan fitting..

secondly, if it IS the turbo, should I rebuild it with a kit on ebay or send it to blaast?

when I say a small amount of smoke, i mean, i take it to 3k RPM and could hardly get enough in my face to smell it.. less than a cigarette puts off just burning

EDIT: the turbo has almost zero shaft play, so i'm really confused at this point.. halp

 

there is no oil on either set of blades.. no smoke from the exhaust.. i'm leaning towards the drain

this is what i mean about the drain:

 

restrictor?

 

the line is a -4 AN.. but i used a flange for a GT turbo and drilled it out a bit smaller than the -4 AN

 

well, aside from burning oil, i'll just run it for now and make a little plate witha smaller hole to go between the turbo and the feed flange.. ----

 

Mine did the same thing, till I tightened things up. It's probably just excess oil or it's got a small leak. That's my guess.

 

ya, i wouldn't worry unless it gets bad. like oil in intercooler.
whe my t25 went i had almost a quart in my front mount

 

cool.. i will go back and double check all the center section bolts.

i was thinking it might be crank case pressure, since i blocked off my stock PCV, so i took off my oil cap and let it vent that way.. it didn't smoke as quickly or as bad.. still smokes though

 

-Sure you can check if a 1/16" restrictor helps, just in case your current setup sends too much oil to the turbo, making it overflow.
-Also, your tap in the pan is not as high as I like it to be. Maybe you're draining under the oil level which could prevent a proper drainage.
-Also, if you turbo sits a bit angled with the turbine down, it may make the turbo more prone to leak through the turbine side since it sits lower and that seal gets submerged more easily.
-if it starts smoking only when hot, then check your oil grade: if you are using 10-30, it might be just that. Some 10-40 or 5-50 would remain more viscous at high temps and be less prone to leak out of the seals.
-AFter you checked all that, then maybe a preventive rebuild including new bearings and seals and rebalancing to prevent further wear would make the center section more oil-tight. Optionally, there's a special turbine seal called the stagger gap piston ring that can also be used to reduce/retard the occurence of such oil leakage.