I did some more testing this morning (I also got my videos to work with audio,
here is the link to my first video's post if you wanted to rewatch it).
So, I altered the alternator setup to include a wire to the voltage regulator on the alternator now so it can regulate things properly. The 3rd pin I had talked about in my other post does go to the warning light on your dash to indicate when the alternator is not working.
On this test, I tried an air drill I had laying around. I looked for the specs on it but found nothing. But, the voltage did get up to a usable level which a good sign. However, I'd imagine it would fall as load on the alternator is increased.
I am starting to think that air tools are not the way to go. To get the power we need the flow rate must be very high. With the steam system I am thinking it would be better to go with a higher pressure & lower flow setup. I'm thinking at 250 psi you only need 1/2 the flow vs 125 psi. My thoughts to back to a home made turbine and some simple piping with a pipe plug and hole drilled in it. Thoughts on the high pressure low flow vs low pressure high flow?