Seeing no one else replied yet.... ???
the track is a function of length, and the number of track joints. If it's solid rail and soldered, I believe you can have a big amount on each TIU channel. I would guess 150' per channel max? Problem is the wire, track, joints, etc., change what is possible. So the number of pieces of track or total length per terminal block is tuff for me to answer. I would throw a guess there using ideal stranded feed #14 (or #12?) wire to the block, 25' per segment with 4 segments should be fine.
I run two segments at around 50'+ (maybe 70'?) rail each? and I'm 2 rail! So again, 4 at 25 should be no problem.
I like to figure 2.5 to 3 amps per engine and the cars depend on LED or bulb?
I use the Lionel PH180s on each half of my mains, so I have 4 of them now.
I have a Z4000 that runs the same length of single 3 rail track on a single handle.
If that helps or I can help you further with any more guesses, just ask.
