How big a rad do I need?

[Hapless]

I'm running a 226w pelt/Maze3 combo right now with a fairly small heatercore from an '88 Ford Escort (about 7.5" x 5" x 2") and I'm getting some pretty high temps, 27c full load for a 1600xp @ 1.8ghz and 1.9vcore. I'm pretty sure my heatercore is my weakness, because my coolant is around 100f after temps level out. How big a rad do I need to get temps like I see everyone else getting? Thanks in advance.

[Hardass]

It may not be your heatercore it may be your fans. What are you running fan wise?

[Hapless]

a 100cfm 120mm sucking and a 80ish cfm 120mm blowing, each running at about ~80% of full power

[Hardass]

Before I did anything i would change out the 80 for a 120. With that rad can,t you fit 2=120,s on one side?

[Hapless]

they're both 120mm's, its just that one does 100 cfm and the other does about 80 cfm

[Hardass]

I don,t know if this will help but, my Swiftech has a rad with dim of 11x4-1/2x1 with 2 120,s blowing threw it. With a 226w pelt I,m getting 21-23c temps. Also case has 120mm top blowhole and 2=120,s on the door. and 120 in the front.

[will_perdikakis]

There are many things you can do in a situation such as this:

-Increase effective surface area. IE larger heatercore.

-Increase flow rate. Either larger ID barbs or faster pump.

-Increase flow of ambient air through the heat exchanger. IE larger CFM fan.

-Lower the Intake air temp. IE Put an AC in front of of the fan intake or just AC the room you are in. If you are in New England, just open a freaking window, it is 40F outside.

The next two are my true recommendations.

-Put a second heatercore in parallel with the last one. This will double the surface area (assuming it is the same heatercore) and halve the flowrate through each radiator. Giving the water more time in the raddy will decrease the water temps nicely.

Combine this with any/all of the above methods and you will have a very effective means of cool.

-Last but not least is to build a water chiller. The water will cool the hot side down nicely giving you the best efficiency of the pelt. However, this may not be possible/practical for you.

[Hapless]

wooooooooooooooooo take a look at this monster:

http://www.indigodao.com/Graphics/Shodo/lytron-front.jpg

http://www.indigodao.com/Graphics/Shodo/lytron-rear.jpg

http://www.indigodao.com/Graphics/Shodo/lytron-interior.jpg

http://www.indigodao.com/Graphics/Shodo/lytron-rad.jpg

http://www.indigodao.com/Graphics/Shodo/lytron-pump.jpg

I think my temp problems are solved :D This thing's rated to dissipate 500w of heat and retails for about $1000 :) And the best part is I've got 2 of them :D If anyone wants to buy the 2nd, PM me.

[FishaOfMen]

Hapless,

That's a heavy duty piece of equipment you've got there. How loud is it? And what did it do to your electric bill?

[Wayne H]

Whys it so expensive?? Its only a rad and pump?

[FishaOfMen]

Wayne,

He said it retails for $1000. You can get a new one on eBay for $100. It is a quality piece of machinery, though. The pump in itself is worth more than $100. You'll notice that it's label says it maxes out at 36 ft of head, which is pretty insane. The whole thing is made by Lytron, who makes heat exchangers that are highly regarded by the most intense of overclockers. I'd eventually like to buy one of their chilling units.

[Tedinde]

dont be afraid to tighten the hell out of the coldplate peltier block sandwich. Plus 3/8 on the danger den is restrictive. Im running 5/8th now on my swiftec.

Your radiator will handle it. Im using a 6x6x2 from a ford pickup, Buying that thing looks nice, But if it's your block, You'll be mad.

[megatron]

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=1922438684

Is this any good? What the difference between this and the thing above?