ROTO 85FSI - 270° is not compatible with Muffler 2 in 1
The 270° crankshaft is used exclusively for Warbirds.
The sound of this engine is enhanced by this specially designed crankshaft design specifically for use in WWII fighter aircraft.
The long awaited increase in engine power, by changing the camshaft timing, is also a big change. Another new feature is the use of two carburettors, which take care of separate cylinder filling.
Technical data:
Engine displacement: 80 ccm
Power: 4,3 kW
Max static engine thrust: 12 kg
Bore: 2x39,5 mm
Engine weight: 2995 g
Engine & ignition weight: 3250 g
Arrangement of the engine: inline two-cylinder
Cooling: air-cooled
Lubrication: petrol 95 oct. + 2% oil
RPM: 1200 6000
Fuel system: Carburettor