Thank you all for the kind and encouraging comments! I've worked hard to try to build something useful, functional, and reliable. (love "Lister Porn" - I think I'll go to the truck stop and get some nekid lady mudflaps now!)
To answer some of the questions:
The head is 30kw - because I got a good buy on it. The pulleys are actually made for a larger belt in case I needed it, but so far, the 6-rib serpentine hasn't shown any signs of distress, slipping, or heating. Pulleys were surprisingly easy to make on the lathe.
Yes, there is quite a bit of intake noise and I intend to fabricate a remote-mounted airbox as soon as time permits.
The digital display is a Conzerv EM6459. It shows per-leg voltage, amps, frequency, power factor, percent load, etc. Note the two current-transformers in the electrical box. Very nice unit for under $300.
It is a piston type oil pump and there is very little actual pressure in the system. You can see pulses on the gauge, but no continuous pressure reading. It's enough to tell me that oil is moving, but not much more.
The dual port thermostat housing is something we made at my shop. It uses a Cummins t-stat which has two plungers. The plungers mate with two faces milled into the housing. When the stat is closed, coolant circulates in one direction back through the engine block and as it opens, it closes off that port and opens the second port which allows coolant to circulate through the other port and to the radiator. (hope that makes sense)
As to whether it's stationary or not....I figure nothing is stationary if you have a big enough crane :-)
cheers,
Chris