On the last day of my first summer road trip, I broke camp early in the morning and drove down to the Western New York & Pennsylvania's shop in hopes of seeing something moving. The crew got there about 45 minutes after I did, and I watched from a distance as they started up a pair of GEs for a light move. They were a pair of AC4600CWs, former 6000-hp CSX AC6000s rebuilt with 16-cylinder GEVO engines that I think are unique for the US; most GE Evolutions have a 12-cylinder engine, and the Dash 9s and Dash 8s rostered by the Class Is have 7FDL-16s (pre-Tier 1 prime movers). Interestingly enough, I've found conflicting information online; some say the engine still makes 4400 hp, others say it makes 5800 horsepower.
The process (removing the weather covers, setting some valves on the side I couldn't see) took several minutes, and even once the warning bell started ringing, it took the engine almost 2 minutes to start cranking. I couldn't help noticing how long the process took compared to the average model train startup sequence, though I definitely understand that having to wait ten minutes for your model to start making smoke and lighting up is not what people (or even I) want.
https://cs.trains.com/trn/f/741/p/194378/2139463.aspx
