Airframe Type
Experimental
Performance
Maximum Continuous HP174/180 HP
Maximum RPM @ Full Power2,700
Recommended TBO2,000 / 2,400 hours (ASTM)
Number of Cylinders4
Bore5.125 in
Stroke4.125 in
Displacement340 in³
Compression Ratio8.0:1/9.0:1
CHT - Maximum500° F
CHT at Maximum Cruise (Recommended)425° F
Spark Plug Boss
18mm
Fuel
Fuel DeliveryCarb/Injection
Aviation Grade, Octane (Recommended)100/100LL
Dimensions
Height20.36-23 in
Width32.27 in
Length29.07 in
Weight
Estimated Dry Weight259-296 lbs
Oil Temperature
Normal Operating Temp180° F
Maximum Operating Temp245° F
Normal Operating Oil Pressure, psi
(Maximum/Minimum/Idling)90 / 60 / 25
Engine Mount
Dynafocal Type 1 or Conical
Propeller
Constant Speed or Fixed
Prop Governor
Location Right Rear/ Front LH
Crankshaft
Flange.44 in thick
Bushings (Prop Bolt Size)3/8,7/16, or 1/2 UNF
Oil Capacity8 quarts
Induction PlenumWarm/Cold
Sump Options
Aluminum/Magnesium