How long before oil reaches TB

[project4g63]

I decided to finnally upgrade my UICP and I was wondering, how long does it take for oil to get sucked up to my Throttle Body? When I removed the stock piping I saw oil past the BOV and it stopped right after the hose clamp where the soft hose takes over. I've heard this is a sign of turbo failure when oil is leaked through the IC and eventually reaches the TB. I just don't know how long that process takes. I was hoping that the oil is from the hose leading to the valve cover. Seeing as I have never removed the piping since I have owned the car (3 years) maybe that is how long it takes to get that far (roughly 7 years total). I am thrown for a loop because my TB elbow is clean. Any thoughts?

 

[Sotarts]

Get an oil catch-can.

http://www.roadraceengineering.com/eclengine.htm

 

[project4g63]

I'm sure thats all well and good but I am really wondering if the oil is from my turbo or the valve cover? Does anyone know how long that whole process takes for the oil from a leaky turbo to reach the TB?