It's also quite difficult to directly compare blocks, on soley a temperature basis - as these more restrictive blocks have heavier dependencies on the available water pressure - etc. I mean this has all been discussed before - the more thorough a set of results (testing methods, etc.) - the more acurately they can be interpreted by the readers... Maybe wanna indulge us with your setup Tuff? [Note: I think MadDogMe pretty well covered the variations from system to system - just restating its also a concern of mine.]
Now back on topic!
I like the size, it's great to see blocks come down to a more reasonable size, "gee we only have to cool the die?" Don't get me wrong big blocks have their places (TEC for example) - but some fine tuning of what exactly is necessary is nice to see.
Is the channel between inletand oulet fairly restrictive? If so, I can't understand why you would seek restriction tthere - Please explain - If not, ok then... :P
I'd also love to see some pics of this block mounted up.
MadDogMe, your questions seems to have gotten a little lost in the winding of the thread
but a spread bore looks to be shown in the leftmost piece of the block and is almost the opposite of a nozzle, where there is more lateral room given to the incoming water, I'm not sure what function it serves really. I'm also not sure how much nozzles will affect the performance, as the water would be striking the cups directly anyway, and they are quite close together, ie, not too much "impingency" is lost due to water striking in the "wrong" places. However, water won't really be striking the areas not directly under the inlet, or on the outside of the spreadbore. I question the necessity of the spreadbore because the flow in that are would be secondary to striking the area directly under the inlet, ie the flow would not be of an impingent nature.
Also if nozzles were used to increase the area (amount of cups) that could be struck with X amount of force, then I could see an increas due to that.
But we will soon see.