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Yes. It's all about finding the right pump solution for the restriction of the loop.
As it seems, very high head only doesn't do the trick alone, but very high flow alone doesn't do either.
That's why I'm curious about his serial/parallel test. The head of these pumps is already quite high, so serial "might" work better for one or the other loop.
Do you mean trying two modified DCC's in serial Vs two unmodified DCC's in serial ?
It would be nice to get some more of them Head Pressure Vs Flow Rate graphs for modified and unmodified DCC(s) as well as some curves of Head Pressure Vs Flow Rate for the restriction of some standard loops. Storm, PA120.*, etc.
Well, perfect would be to test both modes with
- unmodified DDC, standard top
- plex top, unmodified, front inlet
- plex top, unmodified, top inlet
- plex top, modified, top inlet
All that should add to a complete picture how the pumps operate and what might do the trick when using two of them.
Aye, and a proper Flow Vs Head curve instead of just the max would be idea.
Now we just need to find somebody with the time and money to do that. :P
Some proper curves plus maybe 2 "real" loops in comparison would be really nice. But that means a lot of work...
Yup, I vote you. ;) :toast:Quote:
Originally Posted by Radical_53
We'll see :)
You would also need a very stable power supply as these pumps seem to vary quite a bit on small voltage changes.Quote:
Originally Posted by Radical_53
Yes, for sure. But I guess that would be the smallest problem in the end ;) The right test setup and the right thing for measurements would be harder to find or more expensive.
Jesus christ on a rocket-propelled handcart, 6m is nearly 19ft, 6.6 is ~20.5ft.
That means that an unmodded alphacool top Ultra is basically better than a high-head MD-20 in every way apart from reliability o.Ó
It also means that a single Ultra pumps like 2x 50Zs in series, nearly.
Thats scary for such a small pump with such a small dump, I wonder what the reliability is like...
Reliability is ok, as long as you take care of it ;) It doesn't like air bubbles, dirt and it loves to be used with some kind of additive :D Additives do help with the formerly known starting problem, plus it's way smoother and more silent with an additive.
Quote:
Originally Posted by creidiki
What about 2 of them in series? What kind of flow/head do they get?
what additive?..Zerex???Quote:
Originally Posted by Radical_53
So Alphacool DDC Ultra's data is wrong and it's actually more head?
@praxis: Well, it might simply be based on the data with the stock top. Seems as they didn't measure it with the plex top :(
@neal: Yes, some kind of lubricant. Doesn't need much of it, but you can hear the difference immediately as the additive reaches the pump. The difference is nearly like when you decouple a HDD.
Will we...? ;)Quote:
Originally Posted by Radical_53
Bet on it :toast:
Might just be a little tricky to get two of each, but that should be managable. Hope to get my hands on some Radiical tops :D
We count on your inside connections... ;)
BTW i would really like a head to head comparison of modded/unmodded alphacool top vs radiical.
That was my intention too, right ;) How much can be gained with a top, were are those gains and so on.
Interesting that everyone likes and uses these pumps, but no one has yet thoroughly compared them (at least not with official results or something).
Like when looking at the numbers here, the results are really amazing to me. I think there's still some performance left that you can get out of this little buddy :D
In my opinion, the answer to this is the radiical top. At least that's what i'll do in the future for my DDC Ultra. No modding for me.Quote:
Originally Posted by Radical_53
My :2cents:
I guess so too, yes. But it would be interesting to see where the differences are. Also, if a modded Alpha top can get close or is still behind...
interesting. well...look like you've quite a lot of pending test Radical_53. Radiators and pumps. :D
Thanks in advance for your contribution.:toast:
U count on u for answers... :)
is there another additive you recommend aside from Zerex?Quote:
Originally Posted by Radical_53
Apart from efficiency losses because of tubing etc, 2 in series have the same max flow as 1 pump and double the max head.Quote:
Originally Posted by tw33ter
So you'd be looking at something like 40ft head... o.Ó