found a rad , big one , need opinions
 

very bad pic's but still
its a huge 60*30*3 cm rad , a bit damaged.

http://img25.echo.cx/img25/6876/pic000588pi.th.jpg http://img25.echo.cx/img25/6559/pic000569dc.th.jpg http://img25.echo.cx/img25/7321/pic000550ap.th.jpg http://img25.echo.cx/img25/6456/pic000522yz.th.jpg http://img25.echo.cx/img25/1679/pic000535vv.th.jpg http://img25.echo.cx/img25/4493/pic000518dm.th.jpg http://img118.echo.cx/img118/5058/pic000500zt.th.jpg
what do u say can i use it?
what pump would i need with it?

the tight 180 degree bends at the ends will really hurt flow, especially because there's so many.

If there are no leaks it would be a great for a chiller setup =)

Or a low flow german type setup.

i didn't perform a leak test .
whats a german low flow style?

some ppl sad to me that i should mod i it for singe or doual pass

Cutting and brazing them in a different order could be really really hard. If you dont have the experience I wouldn't try it on something you dont want to trash.

German setups like these: http://www.aqua-computer.de/

Wrong to label them this way but its definitely not a US thing :D

They usually have very very restrictive loops with small ID tubing and big condenser rads like that one you have. The pumps they use are usually just a decent eheim. Nothing crazy like a iwaki like most would use with a G5.
If you look at their radiators they are the same basic design as yours. Tons of passes with just one path, that small ID copper tube.

You might want to test your flow with it first (just hook up your pump and see what kind of flow you get).
If it's a real problem, you could reduce resistance by half by converting to two serpentine loops - requires two tubing cuts and a pair of 'Y' adapters - not nearly as difficult as a full manifold with much of the benefit.
If you've got a radiator shop in the area, bring it over there and talk with the guys in the shop about it. Remember that you have something that might be quite interesting to folks bored to tears with automotive radiators. My experience is that they're even more interested in things going into competition vehicles - but that anything unusual is better than their day-to-day drudge...
I've also found that bringing along a six pack as a thank-you when you pick up whatever they've done gets you much faster attention the next time you need something done, but I think that's true in all sorts of machine/welding/engine shops...