The 140DZ is the current hotrod of the 140 line. It is the most powerful and the choice of most of the world's top pattern fliers.

The 140L is the engine that was replaced by the DZ, and is still available but in short supply. It is not as user friendly as the DZ and slightly less powerful.

The 140 FZ was the engine prior to the L. We never imported this one, as it came before we imported the YS line. It was a user friendly engine but less powerful than the L.

We are bringing out a 140 Sport late this year. It is essentially the same as the FZ and will sell for under $500 street price. This is the one I would wait for if you can. It would be ideal for the type of flying you are doing.

Good Flying,
Dave