Originally Posted by Hobbsy

I got a chance to run the 60 twin a little while ago with the Graupner prop show above. In the picture it's turning 6,000.

Saito 60 twin boxer
Prop Graupner three blade 11 x 7
Fuel Wildcat 10% with 18% full synthetic
Exhaust adapted twin FA 30 mufflers
Plugs Glow Devil for Saito/ Enya
Max rpm after 30 minutes run time a solid 7,950
Idle, not set yet, 30 degree air too cold for hands
Beautiful purr and smooth as silk.
Left cylinder smokes more than the right one, an inquiring mind will investigate.


Running at 6,000 rpm.