Faster waterflow = better?

[Hellraiser]

My selfmade watercooled system , http://members.onecenter.com/y3k/hellraiser/ , is running stable for almost 2 years now. the link shows only the very firs pictures of my system. i have changed a few things since those pics. the main 2 things i changed is that i watercoold my geforce1 aswell and that i am not using a "water-tank" anymore. it is a fully closed system with an eheim 1048 working.

my question is the following ( i havnt checked all postings but if there is an answer ill be happy to find the link ;) ) :
i think that if i can increase the speed with which the water is flowing through the system that the cooling effekt is more powerful. i dont think that i would have better results if the water is flowing rather slow or as slow as possible.

[XprincoX]

well ya increasing the gpm does give better performance. But then it also depends on some other factors, like what kinda mixture ur using. :D

[ButcherUK]

Generally you want higher flow in your waterblocks and lower flow in your radiator. As radiators are generally over specified (especially heatercores) and the waterblock the bottleneck a higher flow is almost always better. If you want to go to extreme lengths then dual rads in parallel gives lower radiator flow without affecting the waterblock flow significantly.

[Hellraiser]

i am using tap water. worked fine for me, although i read about water wetter...it seems to be very useful...can anyone tell what i should ask for if i intended to buy it in a lokal store here in vienna, ausria?

i think that fast flow is good conernig the waterjackets but not concernig radiors. i was thinking of installing a aditional pump in the system right after the raditor the speed up my water flow since it has been "slowed down" by the radiator. i know my radiator slows down my flow caus it has 10 to 12 copper pipes with a diameter of 6 to 8 mm and the rest of my hoses are 8 to 10 mm.

[TruckChase!]

For a single pump system, the flow rate doesn't matter much considering that the flow rate is the same in the radiator and the CPU block. (EDIT: As long as the flow isn't too slow. Don't want the same water sitting on the cpu for too long.) I've been toying with a tri-pump system with High GPH on the waterblock and two pumps at half that speed going to two different radiators. Unfortunately I haven't come up with a really good way to make sure the radiators get an even ammount of the water and that one of the three resivoirs doesn't overflow or run out.

As far as the water goes, I'd ditch that tap water ASAP. Mineral deposits on the insides of waterblocks can really eat away at your performance. You should be able to pick up distilled water at any grocery store for under a buck/ gallon. (US) As far as water wetter goes, it's kinda tough to run across in local stores. I ordered mine from summit racing. Unfortunately I don't know if they ship to Austria. Water Wetter isn't that great anyhow. It can't hold as much heat as water, and it doesn't increase cooling performance in low-flow systems. (which cpu cooling systems are, even with a "high flow" pump) It really only increases performance when used in drag-racer engines and such, and even then it's sort of a gimmick. (my dad is a drag-racer, at 60+ yrs old!) What it does do is reduce surface friction which is nice for long term cooling systems. I actually had a copper water block get worn through once after a year of use, and the watter wetter seems to help with that.

I think I've got some more information on my old plan at bxboards, tho I haven't updated in a LONG time since the site went belly-up.

http://www.bxboards.com/tplan.shtml

Good luck!

[combatmedic]

TruckChase,
I've got a goofy question. Why would you use three resivoirs and not one?

-Mike

[TruckChase!]

Well, I tried one, but it was so incredibly inefficient because all the hot water would mix with the water coming back from the radiators and the pump would grab a mix of the two. I've actually tried a few different designs, but I haven't focused on it much since I haven't gotten off my ass and made a waterblock for a Socket-A system yet.

My main goal in the beginning of the design was to have a large amount of water constantly being cooled by radiators + chillers, but unfortunately I haven't had the time.