Plz Critique This Setup

[riprock]

I think I've finally got everything worked out in my mind on my near future setup.

Heater Core - 6.25 x 7.75 x 2.00
Maze 2-2
Homemade resevoir
Eheim 1048
One 120W Pelt (I could easily get another 120w if needed)
YS-Tech 120mm (130CFM)

What has me concerned is the orifice size differences.

The pump has a 3/8 outlet going to the block, with a 3/8 inlet. The block has a 3/8 outlet going to the rad, with a 3/4 inlet.
The rad has a 5/8 outlet going to the res, with a 1/2 inlet.
The res has a 3/8 outlet going to the pump, with a 3/8 inlet.

Now, it seems to me that this will work well as the velocity will be the greatest going through the block and the least going through the rad.

What do ya'll think?

[ButcherUK]

The pump is 1/2" isn't it...

[riprock]

No, it's a 3/8 pump. The Eheim 1048 has 3/8 fittings. The Maze2-2 I'm getting will have 3/8 fittings as well.

[VashTheStampede]

It also helps when you tell us what equipment this will be cooling. If it's an AMD T-bird, I would suggest a pelt in the range of 150-175W. I've heard XPs run a bit cooler, I don't know really.

~RT~

[Warlord2]

looks like a good setup to me

are you making a resavoir for the pump or just the water?

and you may want to get the eheim 315gph for future waterblocks video card/chipset

[riprock]

It will be cooling an 1800xp, how much wattage, exactly, does an 1800 put out when running it at stock, redneck?

Warlord, I've basically copied the homemade resevoir here
http://www.overclockers.com/tips719/
I could use either 1/2 or 3/8 fittings on the resevoir, block, etc so I could pay the extra $10 for the Eheim 1250 pump, but won't that increase PSI in the system too?

[ButcherUK]

The Eheim 1048 is a 1/2" pump, at least according to Eheim (http://www.eheim.co.uk/e/technik_pumpen.htm).
An XP 1800+ puts out about 70W stock according to Radiate.

[VashTheStampede]

Originally posted by riprock
It will be cooling an 1800xp, how much wattage, exactly, does an 1800 put out when running it at stock, redneck?

Warlord, I've basically copied the homemade resevoir here
http://www.overclockers.com/tips719/
I could use either 1/2 or 3/8 fittings on the resevoir, block, etc so I could pay the extra $10 for the Eheim 1250 pump, but won't that increase PSI in the system too?

Not sure of the wattage, T-Bird is 100W if I remember correctly. Since you are going with a peltier cooled design, I assume you have taken in the thoughts of preventing condensation. If you have, go ahead and pay $1 more for the 172W pelt.

~RT~

[riprock]

Originally posted by ButcherUK
The Eheim 1048 is a 1/2" pump, at least according to Eheim (http://www.eheim.co.uk/e/technik_pumpen.htm).
An XP 1800+ puts out about 70W stock according to Radiate.

I was planning on getting it from DangerDen and they list it as having 3/8 fittings... and you're correct about Eheim's website saying they're 1/2. Swiftech's website, however, also says it comes with 3/8 fittings...

120w pelt can efficiently do what...100watts of cooling? I'm going to have to OC that xp a bit to get up to 100w (Butcher, I like Radiate...haven't reinstalled it since I wiped my HD). I already have a 120 pelt I bought a year ago and 2 80w pelts (one new, one I use on my C566). If I buy another pelt, I'll be buying another 120w pelt.

The heater core is more than adequate to cool off the heat generated by two pelts.

Condensation? whas that??? Prophylactic countries? Oh no, that would be condemnation. My bad.

[ButcherUK]

A 120W pelt on a 100W cpu will give at best 10C extra over nothing, but it'll possibly heat the block up by 5-10C in doing that so you're unlikely to gain much, Consider the two 80s or two 120s for a 100W cpu. (An XP puts out 100W at about 1.85GHz, that's quite an overclock).
Also with regard to the eheim fittings I know they're 1/2" because I have one :D

[Warlord2]

120watt pelt should be enough for a XP but Colin has dual 120watt pelts and have got some good results with a Tbird

I made that same resavoir (no I didnt even see his before I made mine;) )

I would get the Eheim 1250 pump sense its nice to have more psi if you are going to put in more radiators/waterblocks or if your lines are kinked somewhere and it wouldnt make a difference in temps

btw: how are you going to power the pelts?

[riprock]

Originally posted by Warlord2
120watt pelt should be enough for a XP but Colin has dual 120watt pelts and have got some good results with a Tbird

btw: how are you going to power the pelts?

Warlord is saying I need two 120 pelts, but you're saying I only need 2 if I'm going to shoot for the 1.85 OC. So starting out with one 120 would be sufficient...?

Powering the pelts? One word - Xantrex :) Picked up a 40v/20a for $100 off ebay a year ago... works great, but ugly as all get out :)

[ButcherUK]

Two TECs would give a definite improvement over one on an XP even at stock speeds so it's possibly worth getting two to start with.
Also bench power supplies rule :D

[Warlord2]

or start with one and if you dont like the temps your getting go to 2:D

yes Im saying one pelt is fine for a XP for a mild overclock with no voltage mod or anything like that

[riprock]

Thanks for your comments :)

I still haven't gotten most of the parts yet so there's a good chance I'll go ahead and get the second pelt.

Now, what about the difference between tubing/fitting sizes? Good? Bad? Neutral?

[ButcherUK]

Tubing same size as fittings, 1/2" fittings and tube tend to be better than 3/8"

[riprock]

Thanks for everyone's input. I'm sure I'll have many more questions later on.

I am going to stay to 1/2 as much as I can. My core has 3/4 and 5/8 fittings so I'll use inline dual hose barb reducers to reduce it down to 1/2. My res and block will have 1/2 fittings. My pump will be an Eheim 1048 which has either 1/2 or 3/8 fittings... but if it has 3/8 I'll replace it with 1/2.

I have a Fong Kai mid tower case. All the 3.5 bays are slide out, but there's a separate one on the bottom. I just relocated one of my HDs higher, slid that bay out, and I have just enough space to put my 87 Chevette heater core in the front of my case :) The core is 7.75" high and 6.25" wide. It fits perfectly!