Valach Motors VM R7-800, 7 cylinder radial four stroke engine
SynPower2T #7294 Video VM R7-800 in 72% Bristol M1c Valach Motors VM R7-800 in 62% PT-17 Stearman    
Cylinder: 7
Displacement: 800 cc
Output: ca. 45 hp
Bore: 52 mm
Stroke: 52 mm
Diameter: 550 mm
Length from engine mount to prop hub: 300 mm
Weight: 28.2 kg
Ignition voltage range: 6 - 9 V
Idle RPM: 500
Max RPM: 3800 

Propeller size:
Fiala Prop 2-Blade:
                    48x22" to


Fiala Prop 3-Blade:
                    35x18" to
Fuel: 1:25 - 1:33

Valvoline SynPower 2T / Aral Ultimate 102 or Shell V-Power 100

All prices in EURO including 19% German VAT. We reserve the right to alter prices and specifications without prior notice. June 1st 2016.

Due to the rather pungent smell of normal grades of petrol and the alcohol content, we recommend to use either Aral Ultimate 102 or Shell V-Power in conjunction with the synthetic two stroke oil Valvoline SynPower 2T.

Dimensional Drawing VM 800 R7-800