I was searching for some aluminum elbows with a tight radius. No luck with any online source that I could find. I was about to break down and buy some cast Greddy or HKS pipes to modify, when I found these on eBay:

http://cgi.ebay.com/ebaymotors/ws/eB...category=33742

John is the guy that runs the shop. And though his auction only lists 2, 2.5, and 3 inch ODs, he made a set of 2.75 inch OD elbows for me. See the pic in the auction for an idea of what they look like. They came with a mirror polish, and the ends are machined with a lip for the hose to grab. If you need pipes like this, I recommend contacting John.

 

in Australia we can buy the aliminium dohnuts and weld them together and make any angles we want out of them, im sure there will be someone over that that will do the same, for $80au we get a full 360deg 2.5" dohnut which is enough to make 4 90deg bends

 

Yes, I've seen such donuts, but I wanted a tighter radius bend than the donuts (that I've seen) would provide.

The guys that I bought from weld these up at their shop. I believe that they start with cast elbow pieces, cut them to the desired angle, weld on the machined end pieces, then polish the resulting assembly.

 

http://www.burnsstainless.com/index.htm

This might help.

 

No, I'm not talking about a source for pipe or regular mandrel bends. I'm talking about a source for *tight radius* elbows. Burns Stainless is fine for a general tubing source, but you can't buy these elbows off-the-shelf from them.

 

I bought my FMIC from John. Great IC and good service/price. I had it a week after I bought it.

 

I have seen them on Ebay from time to time, but as with all aluminum bends they are expensive