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what's the best DDC top?

post #1 of 14
Thread Starter 
which one is the best?

EK ddc V2?
mcp25x original top?
something else?
post #2 of 14
According to Martin's testing the best performance can be had with the XSPC res top:


Very shortly followed by the XSPC non-res top:

.
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post #3 of 14
Thread Starter 
Thanks, but I believe that test is too old. since many tops have been improved, so the result of the test is not accurate now
post #4 of 14
Have a look at Skinnees test of the 35X http://skinneelabs.com/swiftech-mcp35x/3/ Comparative results with other tops on Page 3
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post #5 of 14
Martin210s top comparison is as good reference too. The EK top with 1/2-inch inlet/outlest fittings for flow will do nicely.

The XSPC have had a few quailty issues here and there.
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post #6 of 14
Quote:
Originally Posted by bmaverick View Post
Martin210s top comparison is as good reference too. The EK top with 1/2-inch inlet/outlest fittings for flow will do nicely.

The XSPC have had a few quailty issues here and there.

This!
Never buy XSPC tops!
Quality is extremely poor!
post #7 of 14
I have the xspc top acrylic, love the led option.
post #8 of 14
I've had and used my old XSPC acrylic top ever since that very old test and it's still holding strong.

I did do a quick test against the MCP-35X top and performance was very similar. If anything the XSPC top had a very very small edge in performance on the same pump motor. But...the 35X motor is stronger than the DDC3.25, so the combination of the 35X motor and 35X top is pretty hard to beat if you're going to utilize PWM to keep the noise down.

The EK, XSPC, and 35X tops are all very close in performance today...practically the same as far as I understand although I haven't personally tested the new EK top nor the latest XSPC tops. I just don't see much room to improve upon the old XSPC top, it was pretty well optimized.

I also suspect there is a very slight advantage in performance on the acrylic versions that are flame polished such as XSPC over acetal. The inner surface is smooth and glass like as opposed to acetal that leaves some machining marks.
    
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post #9 of 14
Hmm, no replies to the thread I did about this yesterday...

http://www.overclock.net/water-cooli...omparison.html
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post #10 of 14
Quote:
Originally Posted by Martinm210 View Post
I also suspect there is a very slight advantage in performance on the acrylic versions that are flame polished such as XSPC over acetal. The inner surface is smooth and glass like as opposed to acetal that leaves some machining marks.
if it's too smooth it'll create back pressure like effect, at lower volumes, fluids have no problem with over coming that resistance, at higher volumes it actually makes sense to cause turbulence and vorticities where the fluids will come in contact with stationary objects with relation to the flow of the fluid to over come the back pressure
an example of this is a golf ball, a smooth golf ball won't go as far as a normal pitted golf ball. . .

not that say you are wrong that the acrylic version might have a performance edge, just not that it's do to it being smoother, just that irregular pitted surfaces might not provide the turbulence effect i talked about earlier.
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