Originally Posted by
grudgelord
I am actually rather surprised that brass only costs 2.5 times that of aluminum. Having done some small bit of metal work over the past ten years or so it has been my experience that brass is freaking expensive. Of course I, admittedly, wasn't purchasing in production quantities. Nevertheless, it's significantly more costly than aluminum.
It's also important to bear in mind the machining costs of brass over aluminum. Brass is significantly harder than aluminum (and it ruins files rather quickly) so the milling process is going to be more expensive due to component wear, thus increasing the cost of manufacture. I'd guess that that $75.00 block would top 100.00 pretty quickly.
Now some protest has arisen from the GTX's higher price tag when compared to the GT. While delrin might or might not be an expensive polymer I'm confidently certain that, once again, we are looking at an additional cost of milling aluminum, not to mention the etching and plating process. Any all-metal block is going to get expensive pretty quick. Even steel, which should be cheaper than aluminum (and no I'm not suggesting a steel top), depending on the grade, would likely become to expensive due to milling costs.
Another thing to keep in mind is that watercooling, while becoming more popular, is not so ubiquitous that Swiftech is producing enough volume to reduce the per-unit cost down to anything that would be considered reasonable by the man-on-the-street. This is still a very specialized niche market.
As for the concerns over corrosion? Who doesn't pull their loop apart so often that they wouldn't catch it in the unlikely event that it did occur? I'm interested in the block and, while it's not what I'd have designed I think it looks nice enough. I'm going to give it a try. If my loop rots out then I'll send Swiftech a nastygram, kick myself for my foolishness and consider taking my business elsewhere. But I truly don't expect that to be the case.
Oh yea, I think Edelbroick valve covers look like crap and I their carburetors are POS. Guess it's a good thing that I don't really feel that the GTX bears any resemblance or confuse my PC with my car, huh?:D
Now, assuming we can prevent the coolant from freezing, how well do you think this block would perform in outer space? [ducks]