So I'm looking at adding stuff to my loop but unfortunately ncix no longer sells the tubing I used which was Masterkleer 7/16"
Now looking at their site they sell either 3/8 ID with a 5/8 OD or a 1/2 ID with a 5/8 OD.
Now I know the 3/8 ID can fit over the 1/2 barbs with a bit of work but will there be much difference in flow going from 7/16 ID to a 3/8 ID?
I don't imagine there would be and I don't know if I feel like going to 1/2 ID tubing.
I bet you'd not even notice a change in core temps by going to 3/8 tubing. I use 1/2" just because I like lowspeed fans on my rad, and thought the extra flow might help my temps a degree or two.
I went from 1/2 tubing to 3/8 and I don't really see any difference. It slightly hotter (may be 1 degree), but I also have chipset and 2 cards in the loop.... which I belive the real reason for hotter temps
If you can get the 3/8" over the 1/2" barbs, go for it. Very minimal losses over 7/16".
If you're really bored, you can check THIS out, a test that was done a couple years ago. But the final conclusions is: Minimal loss to flow rate, and even smaller loss to cooling ability. As much as I love it myself, 1/2" tubing is highly overrated in the average watercooling system these days.
This sounds good. I am thinking of going 3/8 as well and was unsure but this thread is changing my mind. The only concern I have is with my pump, the MCP 655 and it's 1/2 in inlet/outlet. Just to confirm. Is it using a hot cup of water to dip the tubing into and then slip on top of the barb what you are planning to do?
Its a bit of a job and I gave myself a blister once.. but it works.
Another option is to put custom top like EK X5 with 1/4 threads ....
Go for 3/8s. I did, and never looked back at the 7/16s and 1/2s.
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