There aretest scratches and videos.
Kinds of engines and mufflers are tested, including the tuned pipe for 50~60cc.
All of them are made by EME.

For EME 60,

Drive 23*10 Xoar Prop @ 6450 with stock muffler, still rich set
Drive 24*8 Xoar Prop more than 6600 RPM.

For EME 35,

Drive 19*8 Xoar Prop @ 7550~7600 with stock muffler, still rich set
Drive 20*8 Xoar Prop more than 7100 RPM.

Videos

http://www.youtube.com/watch?v=vgetx...ature=youtu.be

http://www.youtube.com/watch?v=E_DsDu3TMts

Moreover, dealers are still wanted. Pls contact [email protected]