quote:Did you try running the consist with about 2 inches of track separation to see if the locomotives even have the same gear ratios/performance properties?
My next step to try.
Both engines have 6 wheel trucks. Legacy Conrail U30C has flanged trucks with the design that the wheels will move somewhat freely on curves. TMCC engine-Conrail SD-80 has blind wheels on outside of 6 wheel truck.