Jpepe3591,
https://www.lionel.com/product...y-sw900-8657-2133590
Lionel lists 031as the minimum curves. It is a scale switcher so if I were you and have 031 curves on a portion of your layout that’s where I would run it. Also ditch those lightweight cars and get some scale freight cars to move arround. Your train will look much better IMHO. Also pay attention to the minimum curves on scale freight cars too. Good luck
JohnB