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Project Blown - because axials just suck...

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HiProfile

Member
Joined
Dec 5, 2001
Location
Random Dumpster/Alley
Since I first saw them, I've always wanted the Comair Rotron Diplomat BLOWERS (impellers). I got lucky and found 4 on ebay NIB for a great price, so I'm set for a new WC setup. Specs are: 133mm OD, 170 CFM, 57 dBa, 3300 rpm, 30 watts, 1.370 in H2O @0cfm.

I plan on cooling my Q6600 G0 and taking it past 3.6ghz, and later add my x1900xt card to the loop.


Rig will be:

Lian-Li PC-60
Q6600 G0 Quad-Core
Abit IP35-E
ATi/Sapphire X1900XT
4GB Patriot DDR2
SB Audigy (in the mail)
NEC Burner, 620w PSU, Seagate 320GB PATA

Cooling:
D-Tek FuZion cpu block
Maze 4 cpu block for gpu (might do another FuZion instead)
Large single-pass heatercore - 6"x9.5"x2"
custom shroud (welded 1/2"x1/8" frame, to be covered in sheet metal)
2 Compair Rotron Diplomat impellers 170CFM
MCP650 pump



Pictures of the shroud/enclosure thingy I've welded up:

blown001vm4.jpg


blown002js5.jpg


blown003nu3.jpg


blown004dx9.jpg


blown005tn7.jpg



I have a 2nd heatercore thats modded a bit, I'm thinking I might eventually run 2 of them... depends on how cool this setup ends up getting everything. I also will run this assembly in the basement below my room to kill noise (and prevent heating my room). I plan on running full 12v for gaming, and 7v for when I'm sleeping. What I love is these blowers are nearly silent at 7v, although they really hum at 12v. I'll be powering the 2 impellers and pump with an old ATX psu, modded to work correctly.
 
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And HiProfile said, let there be pressure, and it was done and he saw it was good :D.

Awesome project. Can't wait to see the temps. Do you have any data for your setup with that radiator and just fans?
 
Not with these blowers. I ran a D-Tek Spir@l (oldskool!) with the same type of core and same pump on an AMD 1700+ t-b and it worked well, don't recall temps (inaccurate probe anyways).

I remember when everyone started to go with the black ice thin rads because people wanted low noise, finding thick core + wimpy fan = bad. Now looking it up, the fabled Comair Rotron Patriot 235CFM can only do 0.769 in H2O @0 cfm compaired to the Diplomat's 1.370 in H2O. :eek:
 
OhmyGawd! I bet if you shut the door to your computer room when you turn this beast on it will explosively decompress the other rooms~:bday:~ thru the crack under the door! LOL!
 
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I'm hoping it will 'suck'... I'm going to email the guys at Comair and see how these do with creating suction. I think they technically are supposed to pressurize beyond the blades, the opposite of what I'm doing. I'm not a fan specialist, unless you consider a turbo a type of fan. :beer:

BTW these things are high-end: they come balanced from the factory, and the 'retail' version (these were custom for some company) goes for >$100 each at digikey.com. I used one as a bathroom fan, and it blows hard at just 7v - given the price I might replace it with a cheapie now.
 
Blowers, you say blowers..........
 

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Maybe a horrible idea, but because of how those are made, couldn't you use those in a "mineral oil" system to move the oil and make the oil flow how you wanted it to with these?
 
Blowers, you say blowers..........

Sure, that one's way better... but huge, 230vac (can't find anything else), and close to $200 for the minimum - more if the company doesn't require a minimum of 5 per order. Just try to undervolt that easily, let alone hit it with full 230vac. :beer: I also recall the 48vdc blowers from a long time ago, which also required a very expensive PSU. For 1/4 the price, I could use all 4 (2 blow/2 suction) and get equivalent flow as the midrange and much better pressure. But that's not saying I wouldn't rock that pabst if I found one. I'm just using what I found, esp. since considering I can't recall anyone else using these types of blowers.

I might also make a different setup that would be similar to that pabst housing so they blow like they were designed to. Just imagine what it would look like if I used all 4... :eek: Dang it, now I've got even crazier ideas!
 
JFettig had tried a blower similar to those, though I think it was a smaller unit.

I'd thought about using my furnace blower (12"x12" squirrel cage w/1/2 horse motor, belt driven) on my basement truck radiator, but that's a whole different level of sickness. :D

So what are you using to enclose that frame in?
I think I'd try stretching an old sweatshirt over it and coating it with fiberglass resin. The easiest way to cope with all those angles and keep it airtight IMHO.

Looking good. :thup:
 
Sure, that one's way better... but huge, 230vac (can't find anything else), and close to $200 for the minimum - more if the company doesn't require a minimum of 5 per order.
No, that is a 110v version. It's no louder than a typical 80mm case fan when not in free air. And the minimum order was 14, and $254.00. I was able to piggy back on another order so only had to wait about two months. I can cool an a highly overclocked FX57 (1.55V) and two overclocked 6800GTs in a 35*C room with a BIX3 and an Eheim 1048 pump. (I have an Iwaki I can click on when needed too.)
 
And the minimum order was 14, and $254.00.

Well I'd say you guys got taken. Digikey has the 33 version (370 cfm) for 5 min @ $202 ea. All documents I see there relating to the 47 version is 353 cfm @0 pressure (despite the same doc showing the graph's curve being bigger). They also list the DM47 version being 55dba, not quite whisper-quiet. But enough nit-picking, I don't go about thread crapping, so please don't continue to either.

*******

I plan on covering the frame I welded with simple galvaized sheet metal, and attach it with plain old pop-rivets. To be honest I've had enough thread tapping as it is.

I think the next step will be a version with them set up in a 'cage' like that papst blower, allowing me to duct in AC or winter air into them if I so choose. I'm not saying this is the craziest WC setup, but I've not seen too many people that have used this type of blower, let alone any that used frames they've welded themselves. I also have major space restrictions - it has to fit up in the rafters and not be an eyesore - so i can't have a 'uber' setup. I'm also a fan of 'built not bought', one reason both of my cars have turbo kits I've made 100% myself, and engines I've built 100% myself. I got a deal on the unique blowers, and here I am with this. :beer:
 
I don't go about thread crapping, so please don't continue to either.
Not thread crapping...just saying that you are going to be amazed by the preformance. Keep up the good work. And by the way, the shroud I had to make was aluminum angle and sheet, pop riveted.
 
There should be two or three wires, one positive and the other negative and a ground possibly. Check the spec sheet if you can find it.
 
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