Thread: Oil return line for turbo

This is my first time going turbo and I just would like to know where is the best place to put the oil return line I've heard tapping the block is the best way which I am trying not to do and then I heard tapping the oil pan but I heard that wasn't so good for the turbo on a sr20 btw I'm boosting my ve so any feed back would help thanks


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I've only heard of tapping the block. I don't think there's another way to do it. From what I understand, once the oil gets past the turbo center, the oil is pretty much no longer pressurized and just drains by gravity so I don't think you have many options.

-G

Tapping the block is not hard to do at all. Don't be scared

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There's a small flat circular area that you need to drill and tap for the oil return. It's on the block. Use a 1/2"npt to 5/8" barb. Doing it this way drains the oil right into the upper pan. DO NOT DRILL THE LOWER PAN FOR THE OIL DRAIN!

Drilling and tapping the block is your only option, an oil return any lower in the system will back up and cause failure issues. Do it right or don't do it at all.

x2 tap the block
I just did my motor...

People have done it with the engine still in the car. But you will need to drop the lower and upper oil pans. Go slow when drilling, take your time, work up to the final drill bit size, and use plenty of grease when tapping it. Do that and it will come out right.

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Dont be skurred, its oonly pussy.