MTH NYC P-2 BOXcab track Radius

[philo426]

I have been running my MTH P-2 NYC boxcab through 0-54 curves for a while and apart from a slight slowdown upon entering the curve seems to run fine.The instruction booklet calls for 0-72 curves for this engine.My question is:will running the engine through 0-54 curves cause any long-term or lasting damage?Please advise.