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 Advanced engineered, dynamically balanced Crankshaft dampens firing pulses vibration & increase engine stroke
 All new 4-Bolt Connecting Rods distribute clamping loads to stop bearing distortion
 42% lighter weight Piston designed with heavy bridge, slipper-type racing pistons
Download the PDF 409 Engine Flyer
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Engine Performance Specifications
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IOX-409 |
ENGINE CERT. |
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EXP |
PERFORMANCE |
Maximum Continuous HP |
230 |
| Maximum RPM @ full power |
2,700 |
| Max. Recommended TBO (hours) |
1,600 |
CYLINDERS |
Number of Cylinders |
4 |
| Bore (inches) |
5.125 |
| Stroke (inches) |
4.95 |
| Displacement (cubic inches) |
408.6 |
| Compression Ratio |
10.5:1 |
| CHT — maximum |
475° F |
| CHT at maximum cruise (recommended) |
425° F |
| SPARK PLUG BOSS (top/bottom) |
18/18mm
14/18 or 14/14 optional |
FUEL |
Delivery System |
Fuel Injection System
TITAN® or similar type systems available |
| Aviation Grade, Octane (recommended) |
100/100LL |
DIMENSIONS |
Height (inches) |
20.63 |
| Width (inches) |
33.41 |
| Length (inches) |
32.57 |
| Weight (estimated dry weight in lbs.)** |
266
+ Accessories |
OIL TEMPERATURE |
Desired Oil Temperature T/O |
180˚F |
| Maximum Oil Temperature T/O |
245˚F |
Normal Operating Oil Pressure, psi
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90 / 60 / 25 |
ENGINE MOUNT |
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Dynafocal Type 1
Conical optional |
PROPELLER |
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Constant Speed
Fixed Pitch optional |
PROP GOVERNOR LOCATION |
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Right Rear |
CRANKSHAFT |
Flange |
.44 thick |
| Stroke |
4.95 |
| Bushings (prop bolt size) |
1/2-20 UNF |
SUMP |
Oil Capacity |
8 quarts |
| Induction Plenum |
Cold |
| Material |
Magnesium |
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