Hi there.

I have a 140-sport in a X-Tech Yak-54 that is almost complete. I have had the motor from new and it is excellent. What are the main differences between this and the 140 DZ and the rough power output from both motors.
Plus I am looking to run an 18x6 on my 140 sport due to the Yak having such a big fat round cowl, do you think that an 18x6 is too big?
It has a 17x6 APC on at the moment. I just want more available prop wash over the model.
It is running on Model Technics 30% Yamada fuel

Reg's James.