Airframe Type
Experimental
Performance
Maximum Continuous HP260 / 270
Maximum RPM @ full power2,700
Recommended TBO2,000 hours
Number of Cylinders6
Bore 5.125 in
Stroke 4.375 in
Displacement 541 in³
Compression Ratio8:5:1/9.0:1
CHT - Maximum500° F
CHT at Maximum Cruise (Recommended)425° F
Spark Plug Boss
18mm
Fuel
Fuel DeliveryInjection
Aviation Grade, Octane (Recommended)100/100LL
Dimensions
Height 24.50 in
Width 33.41 in
Length 38.40 in
Weight
Estimated Dry Weight401 lbs
Oil Temperature
Normal Operating Temp180° F
Maximum Operating Temp245° F
Normal Operating Oil Pressure, psi
(Maximum / Minimum / Idling)90 / 60 / 25
Engine Mount
Mount Brackets
Propeller
Constant Speed
Prop Governor
LocationFront LH
Crankshaft
Flange.44 in thick
Bushings (Prop Bolt Size)1/2-20 UNF
Oil Capacity12 quarts
Induction PlenumWarm
Sump Options
Magnesium