Where do I run my coolant return line?

[240sx_123]

Where do I run my coolant return line?

I've made a quick little sketch that shows what I'm planning on doing with my coolant feed and return line on my Rb25det.  There are 2 positions where coolant can go back: 1 and 3. Number 2 is my coolant feed line. I'm planning on blocking my front coolant return line #1 and using the return on the block #3. So the coolant feed will go to the turbo and then it will flow downwards into the block. Is this okay to do? Will it cause overhearing or am I good to go? 

Edited December 1, 2016 by 240sx_123
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