piggy96

so i just had my turbo rebuilt. When i picked it up he said my oil drain line was too small. I currently have 1/2 npt fittings at both ends and a -10 stainless line. What he told me that for my turbo (custom built garrett t3/t4) the drain should have a minimum of .600" diameter. Does this makes sense or should i be ok. I dont want to have to rebuild my turbo again lol

nealnanoHX

-10 AN lines for a drain is pretty standard for a t3t4 turbo.

Whiterice-gsr

^^^agreed i like a -12 but 10 should be fine thats what 90 percent of ppl have

piggy96

thanks for the help. i think what he was talking about was the fittings so maybe ill just change that up just to be on the safe side

xXSanderXx

Mine is 10AN.

Bix VT

Did you have to rebuild the turbo because of lack of drainage, or another reason? How was the angle on the drain? Where was your return tapped into the oil pan? Was the line kinked at all?

-10 should be sufficient, I'm thinking your problem was something other than the size of the line.

nealnanoHX

^^ Agreed

Whiterice-gsr

with drainage, gravity must be allowed to do its job or it will back up and cause issue.

racebum

hang on, who didn't catch that 1/2" npt is the same as 8an?

Whiterice-gsr

right so hes choked on both ends but proper in the middle.

Dc4LsTeG

iTrader: (7)

No one except you apparently

Get 10an fittings

piggy96

lol. this is why i am changing the fittings, its a topmount setup, angle is great for drain and the fitting on the pan is as high as possible. no kinks

once again thanks for the help everyone, kind of hard to find the smaller details like this