I've run many different engines.

The SuperTigres do well for me, although getting that transition in the midrange right requires a bit of work.

GMS manufacturers the almost identical Tower Hobbies engines, both of which are a pretty good value for the money and well received here.

They DO require a bit more TLC during break in than say an OS or Evolution engine, but I've had very good luck with them.

I'm running the GMS .76 and TH .75 on the Bobcat .52's, and the GMS 1.20 on the Falcon 1.20 as well as a bunch of the T.H. .46's on many different planes.


It sounds like the GMS .76 that you had problems with, had a bad piston rod, or it overheated and siezed causing the rod to break.

Especially during break in, you have to be careful with this type of thing and run ANY engine overly rich.

I seized one GMS .76 on break-in, ( too lean! ) but after letting it cool for 30 minutes and richening it out, I was up and running again.

It's the one I'm currently running on my Yellow Bobcat... SuperTigre decals not-with-standing!