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Double Trouble, Gone two loops..:)

post #1 of 27
Thread Starter 
Still bleeding and getting the AS5 set in, but it's up and running again.

Starting to look like a jungle in there..


Double pumpers... both have been ported and polished and using 5/8" fittings where possible like these T fittings and 5/8" barbs for the rads:


Every little bit helps.
    
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post #2 of 27
Jungle is an understatement . Nice setup.
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post #3 of 27
Cool I am guessing the 5/8" fittings are a result of the testing you did on the elbows?

Looking great!
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post #4 of 27
Thread Starter 
Thanks!

Yes, the elbow testing showed a pretty big difference between the 1/2 and 5/8" elbow. I now have these 5/8" fittings for both T-lines and all four barbs on the MCR320s. It's not easy getting 7/16" ID tubing on a 5/8" fitting, but it works..
    
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post #5 of 27
dayam that looks awsome
    
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post #6 of 27
You've been busy... ...Looks good...
My System
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post #7 of 27
Very nice indeed.
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post #8 of 27
Looks great but one question, if they tubing is so hard to get on then why not just use some zipties like some white on the t elbows. Just an idea

over all that thing looks great and nice managing the routing.
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post #9 of 27
Looks good... neater than my setup

Why don't you use the 1/2" I.D. tubing it fits a little easier over the 5/8" fittings.

I think that you have the same res as I do 5.25 bay 3 port

I'm thinking of taking out my res and putting in a 5/8 T

Do you know how much restriction is in those 5/8' T's and how about Y's?

I'm splitting my cool line in with a Y one line goes to the CPU one to the GPU and then each has it's own barb on the res then a single out to the pump
Do you think I should kepp my setup like this or change something?
    
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post #10 of 27
Thread Starter 
Thanks!

I could probably eliminate the clamps all together on the 5/8" barbs, zip ties would also be more than adequate....but I kind of like the industrial clamp look

I chose to use 7/16" tubing for several reasons, 5/8" OD is just right for my armor case water cooling holes, and I don't really like 1/2" ID 5/8" OD stuff...just too thin for my taste. Also I think it flows just as well, even the 5/8" barbs are not quite 1/2" ID, just a hair over 7/16" so this way my tubing ID matches the fitting ID. I got the 7/16" ID tubing on without any special heating or anything, if I wanted to make life easier I could have heated the tubing ends in boiling water and used a dap of glycerin on the fitting ends, it would probably slip right on then.

I'm not using any reservoirs now, in fact I sent off my old 3 port res to Apollo earlier this week. I like the T fitting myself it should be less restrictive than a reservoir, havn't tested, but I'd bet it is by a fair amount.

Using my elbow test as a basis of comparison, I was finding a 5/8" elbow was worth somewhere around 2' of tubing equivalent and according to this:
http://www.engineeringtoolbox.com/pv...ngs-d_801.html
1/2" pipe elbows can be 1.5'. A straight through T per that link is 1.0' equivalent, so it's probably worth somewhere around 1.5' of tubing. A typical reservoir has both entrance and exit losses into a pool of relatively still water, that's alot of energy loss especially since most barbs in reservoirs extend into and beyond the walls. I wouldn't be suprised to see a reservoir has several times more loss than a T line fitting. I'm also Mr. Spillhappy when topping off, down one PSU as a result

I wouldn't split the loop like that, you will have less pressure drop in the system doing it and more system flow, but you're also cutting the flow rate across the water blocks in half where you need it most. Assuming you had 1.5gal/min of system flow, splitting the loop across the blocks would maybe increase that a little, let's guess .2, now you have 1.7 gal/min split in half for each block. That's now .9 gal/min across the blocks where before you would have had 1.5 if you just ran them in series. The other problem with splitting like that is the pressure drops in each block can be very different, now instead of sending .9 gal/min across your CPU block, it could be .5 if it's more restrictive than the GPU block. I've seen people split before with things like NB and SB blocks, it's just a difficult thing to control flow on. If I ever setup a 3rd loop for NB/SB/Mosfets/etc. I might try a split, but I woudnt do it on the CPU/GPU...maybe if you have dual rads of the same model, you could split before and after.

Originally I had thought about splitting my loop because I thought the water temp from the CPU would be hot when it hit my GPU, but the reality of that is the water temperature never even gets to be more than 1C hotter. Even after both CPU and GPU my water temperature was regualarly 2C hotter than ambient in one loop.

If I had a dual outlet CPU block and wanted to cool both CPU and GPU in one, I would do this:

Pump > Rad > CPU > Y fitting > GPU > T line > Back to Pump
    
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