Very interesting... I always assumed the "mythical Ti Automag" was a running joke, til I followed the links BT posted. I got curious and took a trip over to engineering toolbox.
http://www.engineeringtoolbox.com/me...ties-d_50.html
Densities in kg/cubic meter:
Stainless: 7480 - 8000
Aluminum (7050 alloy): 2800
Titanium: 4500
So, assuming the volume of material is the same from one valve to the other... some quick back of the envelope math gives us...
Aluminum being %35 to %37.5 the density of stainless, should weigh 1.7 or 1.8 oz
Titanium being %56.25 to %60.16 the density of stainless, should weigh 2.756 to 2.948 oz
Now considering that the valve has eight holes instead of the one on the SS valve there is a minute amount of weight savings there too.
All signs seem to be pointing to Ti here. I'm really curious if this is one of AGD's valves, or the product of a decently skilled rogue machinist?
Did the AGD valves have eight holes or just the standard single hole?
I guess we will have to wait for Tom to weigh in on this... nudge nudge