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Unread 04-30-2003, 07:04 PM   #1
BrianW
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Join Date: Jun 2001
Location: Desert City in California
Posts: 631
Default Yet another pump question.

Ok I have gotten a little more funding so I can hopefully complete my project soon. Here is the project thread: http://forums.procooling.com/vbb/sho...&threadid=5543

The last pump I had decided on was the Iwaki 20RZ (Japanese version), although I have heard that the Velocity T Series of pumps are quiter. My main concern is that Iwaki has 5/8" Hose barb connections, and the T2 that I want has 3/4" male NPT connectors. I was thinking that if the T2 is designed for a larger bore system thanthe pressure might hurt the pump after a while, or worse yet cause the pump to operate at a higher DB level.

So my question is what pump would you use if you wanted performance for the below setup ( with possibly a few more waterblocks in the future), while keeping noise from pump at its lowest possible DB?

Iwaki 20RZ ( http://www.marinedepot.com/a_pu_iwaki_info.asp?CartId= )

Custom Sea Velocity T2 ( http://www.customsealife.com/NewFiles/velocity.html )

Radiators: Two Fedco 2-617 Heatercores http://thengc.net/images/watercooled...sanding_06.jpg [Purchased]
Custom reservoir with 1/2" NPT female threads for 5/8" Barbs
Quick Disconnects: 5/8" Nominal flow CPC Valved shutoffs http://www.colder.com/fl_series.cfm [Purchased]
Waterblocks:
1 CPU Waterblock ( http://jpiperformance.com/water_blocks.htm )
1 GPU Waterblock ( http://www.dangerden.com/mall/chipset.asp )
1 NB Waterblock ( DD Danger Den Z-Chip Block )
Fans: Six 120X25mm Aluminum Fans http://jab-tech.com/120mm_aluminum_...rome_79cfm.html

Approximate Tubing lengths:
5/8" Tubing: 2-2.5'
1/2" Tubing: 1.5-2.5'

# of 90 degree turns:
3/4" Schedule40 Pipe: 4 (on each side of quick disconnects)

T's:
1/2" Copper T's: 2 (on inlet and outlet of radiators)

Y's:
1/2" Hose adapter Y (after CPU block)

Anyone care to estimate the Head that will give me, and the resultant expected flow with the two pumps we are comparing?
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Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core | Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose).

Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently.

Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 *waiting for RMA'd Saphire 9800 ultra from Newegg)
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