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  #1  
Old 09-13-2017, 11:50 AM
IBFlyin IBFlyin is offline
 
Join Date: Jan 2007
Location: Carrollton
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Default Is a Lycoming IO-540 C4B5 suitable for an RV10?

I looking at one to start an RV10 project but I haven't pulled the trigger on it. Anyone know or have experience with this engine?

Thanks,

Gary
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  #2  
Old 09-13-2017, 12:07 PM
bcondrey bcondrey is offline
 
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Location: Bellevue, NE
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Yes is the short answer. The factory specifies an IO-540-D4A5 which is 260 HP at 2700. The IO-540-C4B5 is essentially the same engine but derated to 250 HP at 2575 RPM for the Piper Aztec. The engines are identical from a parts perspective. If it's a C4B5 from an Aztec you'd need a different prop governor. Many RV-10s have engines that started out in an Aztec.
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  #3  
Old 09-13-2017, 12:10 PM
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Wayne Wayne is offline
 
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Thats the engine i use and works great
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  #4  
Old 09-13-2017, 12:14 PM
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Bluelabel Bluelabel is offline
 
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Default What Bob said

That's what I have...
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  #5  
Old 09-13-2017, 04:34 PM
IBFlyin IBFlyin is offline
 
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Default Thanks

Thanks for the great help!
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  #6  
Old 09-14-2017, 06:44 PM
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Jesse Jesse is offline
 
Join Date: May 2005
Location: X35 - Ocala, FL
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Quote:
Originally Posted by bcondrey View Post
Yes is the short answer. The factory specifies an IO-540-D4A5 which is 260 HP at 2700. The IO-540-C4B5 is essentially the same engine but derated to 250 HP at 2575 RPM for the Piper Aztec. The engines are identical from a parts perspective. If it's a C4B5 from an Aztec you'd need a different prop governor. Many RV-10s have engines that started out in an Aztec.
Many of these engines use the stock governor from Van's without any trouble. You can run this engine at 2700rpm making 260HP without trouble.
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