Need New Pump, Will MCP650 Do?

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Moony349

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Joined

Nov 13, 2002

• Nov 11, 2004

• #1

Right now I've got a watercooling project that I've been working on and I was using an Iwaki MD-30RZ. Unforunately, turns out that this pump has motor problems and is extremely loud. I need a new pump, and I was wondering if you think a single MCP650 will be able to handle my loop:

About 15-20 feet of 1/2'' ID tubing
2 x 2-342 Radiators
Copper G4 block
PolarFlo GPU block

Thanks a lot.

 

J

jamesavery22

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Joined

Jan 22, 2003

• Nov 11, 2004

• #2

Read Cathars post at OCers AU or proCooling, hands down the best pump article/guide around.

http://forums.procooling.com/vbb/showthread.php?t=10825

 

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Gongo56

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Joined

Aug 20, 2004

• Nov 11, 2004

• #3

15-20 feet??? 2 2-342 rads??? i would think no. maybe 2 in series or something.... why do you have 2 2-342 rads? i bet you're losing a lot of flow with very little temp drop...

 

Talon101

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Joined

Oct 7, 2002

Location

Japan

• Nov 12, 2004

• #4

hey moony
I was just in your situation. I needed a MCP650 pump but I'll let you in on a "secret" that can save you time and money.
The MCP650 on all the other online stores all have 1/2" OD outlets... so it won't work on you system. What will work (and I just ordered it like 5 mins ago) is the MCP650-28 with 1/2" ID. I found mine at http://store.yahoo.com/svcompucycle/mcp650-28.html
hopefully its the right one, I sent an email to them to see if what they are advertising is correct. I'll let you know when I get a reply

 

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Gongo56

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Joined

Aug 20, 2004

• Nov 12, 2004

• #5

i'm sorry but if his tubing is 1/2 ID wont a 1/2 OD pump be a correct fit?

 

Turbokeu

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Joined

Jul 20, 2001

Location

Brussels - Belgium

• Nov 12, 2004

• #6

Talon101 said:

hey moony
I was just in your situation. I needed a MCP650 pump but I'll let you in on a "secret" that can save you time and money.
The MCP650 on all the other online stores all have 1/2" OD outlets... so it won't work on you system. What will work (and I just ordered it like 5 mins ago) is the MCP650-28 with 1/2" ID. I found mine at http://store.yahoo.com/svcompucycle/mcp650-28.html
hopefully its the right one, I sent an email to them to see if what they are advertising is correct. I'll let you know when I get a reply

Click to expand...

The link you provided is for a standard 1/2"OD MCP650.
100% of all Swiftech MCP650, and 99.9% of all Danger Den DD4 have 1/2"OD connections (for connection to 1/2"ID tubing), only Danger Den can provide it with 3/4"OD connections (for 3/4"ID tubing)...

PS: 3/8"OD MCP650 or DD4 do not exist, and connection of the pumps to 3/8"ID tubing is not advised.

CD

 

Turbokeu

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Joined

Jul 20, 2001

Location

Brussels - Belgium

• Nov 12, 2004

• #7

Gongo56 said:

i'm sorry but if his tubing is 1/2 ID wont a 1/2 OD pump be a correct fit?

Click to expand...

Yes.

 

Achilles17

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Joined

Jun 5, 2004

Location

New York City

• Nov 12, 2004

• #8

I got 3/4 OD, 1/2 ID fittings on my DD D4, and it works fine. I just had to stretch the tubing over the barb, by heating it up first. You probably get a little more flow though, as more water can exit the pump at once, so it cant hurt. you definitly dont get LESS flow, it just takes effort to get it on.

 

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jamesavery22

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Joined

Jan 22, 2003

• Nov 12, 2004

• #9

the mcp650 puts too much heat in the loop.

For a system like that Id just go with the MD-20RZ. If you want DC either give a MCP600 13.5v or just do dual MCP600s.

 

Talon101

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Joined

Oct 7, 2002

Location

Japan

• Nov 12, 2004

• #10

Hmm, learn something new everyday!
sorry bout the bad info

 

Achilles17

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Joined

Jun 5, 2004

Location

New York City

• Nov 12, 2004

• #11

they really dont add that much heat, 7w isnt anything very noticable. When you are putting the mcp600 at 13.8v, it dumps about the same amount of heat into the loop anyway.

 

Senater_Cache

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Joined

May 22, 2004

Location

Gainesville, FL / Frankfurt Germany

• Nov 12, 2004

• #12

15-20 feet is quite a bit. At least your HCs are single pass, so that takes a bit of resistance out of the loop.

I think two MCP650s in series should do the trick. Plus the G4 doesnt require massive flowrates to perform above par.

 

OP

M

Moony349

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Joined

Nov 13, 2002

• Nov 13, 2004

• Thread Starter
• #13

Its a shame my 30RZ died. I'll pm Cathar and see what he thinks.

 

Achilles17

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Joined

Jun 5, 2004

Location

New York City

• Nov 13, 2004

• #14

try to RMA the 30Z or something, iwaki pumps arent suppossed to fail...

 

jackrungh

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Joined

Apr 30, 2004

• Nov 13, 2004

• #15

I need to see how you are making use of 20 FEET of tubing... do you have pics? Are you running it down to the basement for cooler ambients like some others who've posted? Very curious.

 

OP

M

Moony349

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Joined

Nov 13, 2002

• Nov 13, 2004

• Thread Starter
• #16

I talked to the tech he said they can't fix the motor because the seals are supposed to be permanent and I would need a new motor...and they wouldn't take an RMA b.c i bought it on ebay and don't really have any receipt etc. I have about 20 feet of tubing because I'm running the tubing in my computer which is on a desk to the actual rad box which is on teh floor a few feet away and about 5 feet downward plus the tubing inside the radbox which is 3 feet long...it adds up.