Blocks with 3/8", 1/2", or...?

eXacto · 12-30-2002, 09:01 PM

I have been looking into getting Swiftech MCW5000 and MCW50 blocks and the MCP300 pump. They all use quick-connects that accept 1/2" OD tubing, which would only be like 3/8" ID if the tubing had 1/16" walls right? That seems like it wouldn't provide very good flow, so I looked at getting the optional barbs but they aren't any bigger, and the internal metal inlet on the block is only 3/8" diameter anyway (Swiftech told me), so anything bigger than 3/8" tubing would be useless anyway. :shrug:

I thought 1/2" ID was kind of like the "new thing" everyone was using, but I haven't seen any blocks that have true 1/2" ID barbs or waterways in them that would be non-restrictive to 1/2" ID tubing, especially on GPU blocks.

In my setup I want to use a CPU and GPU block but if I can't find any blocks with 1/2" ID then I guess I'll have to go with the small ass 3/8" ID tubing.

Can someone tell me if going from 3/8" ID to 1/2" ID will really actually help anyway? I mean even if it's only a couple degrees better it would seem worthwhile since I'm trying to get as much as I possibly can out of watercooling.

nikhsub1 · 12-30-2002, 09:20 PM

Well you wont see a 2C diff, that's for sure. The temp diff's between 3/8 and 1/2 would be unmeasureable with most devices... All WB's and rads that have 1/2 inch barbs are all 3/8" ID anyway... to have a true 1/2" system would require 5/8" barbs and 1/2" ID tubing.

Oh, If you are looking to get all you can out of H20, you would look into Cathar's White Water block - spanks anything on the market at the moment by a fair amount.

eXacto · 12-30-2002, 10:04 PM

Thanks, I'm currently looking into Cathar's CPU and GPU blocks right now, but the price does seem very high. I tried to find a website or something where I could buy them but didn't find anything, and I really don't know if I really want to spend twice as much for blocks right now. I emailed him to find out more anyway.

nOv1c3 · 12-31-2002, 02:43 AM

I,m using swiftech RAD and there MCW372 rv2 water block

all with the the 3/8 od quick-connects fitting and its been keeping my Xp 2100+ chip in the 35-c degrees on load

So i dont think biger or more flow is always beter

redleader · 01-01-2003, 12:45 AM

Haven't looked at Swiftek's stuff but 1/2 OD barbs are generally bigger then 3/8 ID in my experience. Besides you can always drill them wider

winewood · 01-01-2003, 02:43 PM

nikhsub1,

Can you find us a link so we can see some numbers on the white block? I would like to look into it.

Thanks

12-30-2002, 09:01 PM	#1
eXacto Cooling Neophyte Join Date: Oct 2002 Location: San Francisco Posts: 24	Blocks with 3/8", 1/2", or...? I have been looking into getting Swiftech MCW5000 and MCW50 blocks and the MCP300 pump. They all use quick-connects that accept 1/2" OD tubing, which would only be like 3/8" ID if the tubing had 1/16" walls right? That seems like it wouldn't provide very good flow, so I looked at getting the optional barbs but they aren't any bigger, and the internal metal inlet on the block is only 3/8" diameter anyway (Swiftech told me), so anything bigger than 3/8" tubing would be useless anyway. :shrug: I thought 1/2" ID was kind of like the "new thing" everyone was using, but I haven't seen any blocks that have true 1/2" ID barbs or waterways in them that would be non-restrictive to 1/2" ID tubing, especially on GPU blocks. In my setup I want to use a CPU and GPU block but if I can't find any blocks with 1/2" ID then I guess I'll have to go with the small ass 3/8" ID tubing. Can someone tell me if going from 3/8" ID to 1/2" ID will really actually help anyway? I mean even if it's only a couple degrees better it would seem worthwhile since I'm trying to get as much as I possibly can out of watercooling.

12-30-2002, 09:20 PM	#2
nikhsub1 c00ling p00n Join Date: Jun 2002 Location: L.A. Posts: 758	Well you wont see a 2C diff, that's for sure. The temp diff's between 3/8 and 1/2 would be unmeasureable with most devices... All WB's and rads that have 1/2 inch barbs are all 3/8" ID anyway... to have a true 1/2" system would require 5/8" barbs and 1/2" ID tubing. Oh, If you are looking to get all you can out of H20, you would look into Cathar's White Water block - spanks anything on the market at the moment by a fair amount. __________________ :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-: E6700 @ 3.65Ghz / P5W DH Deluxe / 2GB 667 TeamGroup / 1900XTX PC Power & Cooling Turbo 510 Deluxe Mountain Mods U2-UFO Cube Storm G5 --> MP-01 --> PA 120.3 --> 2x DDC Ultras in Series --> Custom Clear Res "Artificial intelligence is no match for natural stupidity." 1,223,460+ Ghz Folding@Home aNonForums :-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:'``':-.,_,.-:

01-01-2003, 02:43 PM	#6
winewood Cooling Savant Join Date: Nov 2002 Location: in my chair Posts: 574	nikhsub1, Can you find us a link so we can see some numbers on the white block? I would like to look into it. Thanks __________________ -winewood-

12-30-2002, 10:04 PM	#3
eXacto Cooling Neophyte Join Date: Oct 2002 Location: San Francisco Posts: 24	Thanks, I'm currently looking into Cathar's CPU and GPU blocks right now, but the price does seem very high. I tried to find a website or something where I could buy them but didn't find anything, and I really don't know if I really want to spend twice as much for blocks right now. I emailed him to find out more anyway.

12-31-2002, 02:43 AM	#4
nOv1c3 Crazy Stupid Join Date: Nov 2002 Location: Dallas texas Posts: 149	I,m using swiftech RAD and there MCW372 rv2 water block all with the the 3/8 od quick-connects fitting and its been keeping my Xp 2100+ chip in the 35-c degrees on load So i dont think biger or more flow is always beter

01-01-2003, 12:45 AM	#5
redleader Thermophile Join Date: Jun 2001 Location: The deserts of Tucson, Az Posts: 1,264	Haven't looked at Swiftek's stuff but 1/2 OD barbs are generally bigger then 3/8 ID in my experience. Besides you can always drill them wider

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