Fried Lehner 1940? Help!!!

Sower, I was in the same boat that you are. At first, I figured, the bigger the better; but as I did research I found that this was not true.

Although the better motors can stand undergearing better than the cheapie motors, the general rules still apply. If you undergear it, it will run hotter. What I am concerned about with your situation is that you may not be able to gear it enough to put a proper load on the motor. If you do gear it enough, you might just start breaking things on your truck.

As I said, I really don't know as I've never tried it. I just might turn out to be a great choice, or it could turn out to be an expensive lesson. I have heard of a few guys going to the 1950 and have had success with them, but I don't know how they were running them. Bashing success doesn't necessarily mean success on a track where the running is hard and constant.

I know that you are concerned because you just blew up an expensive motor, but I still think that you should not go wrong with what we know works. With your 12lb truck, it is likely that a 1940 or 1950 will do in a Lehner and for a Neu, the 1515. I just went with a Neu 1512 in my 10lb truggy and all seemed as though it was good.