So using some fittings I had on hand I started mocking up a good drain with all AN style fittings. I replaced the barb with a -10 to 1/2" straight, and got a 45* swivel fitting off it to aimed straight down into the valley. Doing this allowed me to have the turbo straight up an down as well.
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My plan is to use a 1/2" to -10 45* fitting straight off the drain flange and use a 45* fitting off the valley fitting for a nice short braided stainless drain with no hose or clamps. Ill be using a similar valley drain block off plug that comes with felpro valley pans, and tigging a -10 bung into it. Just stainless not alluminum like pictured here.
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With my parts ordered for the drain I moved onto the rest of the turbo plumbing, doing some research last week I found ATP makes some really nice banjo style extension fittings for the water ports with an allen cap, so I ordered a set of those in -6 and built the water lines, the extension fittings made them lines much cleaners without any bends flopping around the top of the engine.
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I plan on adding an inline pressure gauge on the inlet side of the coolant port so that can easily be monitored.