question on gt25
 

I have search and haven't found the anwsers to this, just from looking at the turbo that I bought, the oil supply and return. Supply is the smaller theaded port and the drain is the larger port that has a flang fitted line? Correct? Also does it matter which way the water runs through it, I could be wrong but I don't see why that would matter, thanks.

Re: question on gt25
 

Yes,

And it doesn't matter.