NEW Z4 Blocks
 

www.cpufx.com/Z4


im not supposted to post the link

but what u think?\\

ive heard that all och gear eats shit
im not realloy considering this block
i just want ur opinions

Why don't you stop being a dick and not post shit that you're not supposed to be posting?? I'm sure you've violated some sort of agreement you had with OCH, so I'm going to let them know about this ... get some ethics, a little maturity, and then why don't you look me up later when you do all that?

Wow,

look @ this one I found.
http://www.cpufx.com/Z4/waterblocks/2parts.gif

Seems like the channels are a bit thin.

i'd rather have the block made by my fellow okla[H]oman....@ :)

Well it is a huge improvement over their joke of Z3 products. As was said, the channels seem kinda small. I have a feeling they'll anodize at blue.
Just from looking at it though, it looks okay I guess...

A few issues
1) Why does anyone mix copper and aluminium? Isn't this just asking for trouble? You may be able to reduce the corrosion with an inhibiter, but copper/brass plumbing can last centuries. It is also pretty easy to solder/braze copper to brass.
2) The top plates look a little massive.Can you cut the size and make the whole thing a little lighhter? Solder/braze an elbow to a thinner plate and you are done with less metal (lower heat capacity.
3) What is the metal for the lower plate. I assume that is it copper (is it oxygen-free high conductivity)
4) Overall, I like the idea of making the water move through channels, but I wonder if having a couple channels in parallel rather than a single long chanel. This would increase the flow rate.

They do have an actual site up . . .

https://www.cpufx.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=o&Product_Code= ZAHS&Category_Code=UC

Anyway, it looks pretty bad for a performance block.

They combine 1/4inch ID (!!!) tubes with 5/16 inch channels and claim:

Yes that might be true with a 10GPH pump, but with anything faster then a handcrank faster flow is always much better. Not to mention that that the fittings alone will destroy any hope of good performance.

Not to mention Copper alloy instead of copper. IIRC there are no alloys of Cu that even come close to the pure stuff in terms of conductivity.

At least they took down that crap about Al passing heat to the coolant faster then Cu . . .

[ 09-17-2001: Message edited by: redleader ]

I think they do this to cut back on weight/cost. But I do agree... It would be much better to have one substance. However, the anodization should prevent the problem.