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KBelue(at)drs-tem.com
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 Posted: Thu Aug 03, 2006 7:10 am Post subject: IO-540-C4B5 engine choice |
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I'm thinking about an engine for my plane and would appreciate info on the following:
Has anyone installed an IO-540-C4B5 engine in an RV-10?
Does anyone know of problems using this engine in an RV10?
[b] [/b]
[b]Kevin [/b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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Rhonda(at)bpaengines.com
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| Posted: Thu Aug 03, 2006 7:23 am Post subject: IO-540-C4B5 engine choice |
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Kevin:
The C4B5 is a parallel head IO-540 and is the exact same engine as the D4A5 except in certified category except that is derated for a different power setting. It is an excellent choice for your-10.
Regards,
[i]Rhonda Barrett-Bewley[/i]
Barrett Precision Engines, Inc.
2870-B N. Sheridan Rd.
Tulsa, OK 74115
(918) 835-1089 phone
(918) 835-1754 fax
www.barrettprecisionengines.com
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Belue, Kevin
Sent: Thursday, August 03, 2006 10:04 AM
To: 'rv10-list(at)matronics.com'
Subject: IO-540-C4B5 engine choice
I'm thinking about an engine for my plane and would appreciate info on the following:
Has anyone installed an IO-540-C4B5 engine in an RV-10?
Does anyone know of problems using this engine in an RV10?
[b] [/b]
[b]Kevin [/b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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armywrights(at)adelphia.n
Guest
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| Posted: Thu Aug 03, 2006 2:25 pm Post subject: IO-540-C4B5 engine choice |
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Additionally, Certificated airplanes either call for the C4B5 or the D4A5. The Piper Aztec uses the “C4B5” which is rated for 250 HP at 2575 RPM. The EXACT SAME engine turning at 2700 RPM gives you 260 HP, and this is the designation of “D4A5.” I just went through this last night with my overhauler who wrote in my engine logbook …C4B5… As an experimental builder I just run the engine at 2700 RPM and I’ll be operating a D4A5. This is not overrunning the engine like stroking or high compression pistons does, and reaching recommended TBO should be a non-issue as long as you take care of your engine.
From the Lycoming webpages here’s an excerpt for the C4B5, the D4A5, and how you arrive at each derivative starting from an O-540-ALA.
Model
HP
T/O
Fuel
C.R.
DESCRIPTION
Suffix
RPM
IO-540-D4A5
260
2700
100/100LL
8.50:1
Same as O-540-E4A5 but with Bendix fuel injection
-48
O-540-E4A5
260
2700
100/i00LL
8.50:1
Same as -A4D5 except for higher speed and rating
-40
O-540-A4D5
250/235
2575/2400
100/100LL
8.50:1
Same as -A1D5 but with more effective counterweights for use with Hartzell "compact" propeller
-40
O-540-A1D5
250/235
2575/2400
100/100LL
8.50:1
Same as -A1B5 except for Retard Breaker Magnetos
-40
O-540-A1B5
250/235
2575/2400
100/100LL
8.50:1
Same as -A1A5 except for short propeller governor studs and two impulse magnetos
-40
O-540-A1A5
250/235
2575/2400
100/100LL
8.50:1
Same as O-540-A1A but one fifth and one sixth order counterweights
-40
O-540-ALA
250/235
2575/2400
100/100LL
8.50:1
Two sixth order counterweights
-40
IO-540-C4B5
250
2575
100/100LL
8.50:1
Same as -C1B5 but with more effective counterweights for use with Hartzell "compact,, propeller
-48
IO-540-C1B5
250
2575
100/100LL
8.50:1
Same as O-540-A1D5 but with Bendix fuel injector
-48
O-540-A1D5
250/235
2575/2400
100/100LL
8.50:1
Same as -A1B5 except for Retard Breaker Magnetos
-40
O-540-A1B5
250/235
2575/2400
100/100LL
8.50:1
Same as -A1A5 except for short propeller governor studs and two impulse magnetos
-40
O-540-A1A5
250/235
2575/2400
100/100LL
8.50:1
Same as O-540-A1A but one fifth and one sixth order counterweights
-40
O-540-ALA
250/235
2575/2400
100/100LL
8.50:1
Two sixth order counterweights
-40
Rob Wright
#392
Wings
Picking up engine tomorrow!
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Rhonda Bewley
Sent: Thursday, August 03, 2006 10:21 AM
To: rv10-list(at)matronics.com
Subject: RE: RV10-List: IO-540-C4B5 engine choice
Kevin:
The C4B5 is a parallel head IO-540 and is the exact same engine as the D4A5 except in certified category except that is derated for a different power setting. It is an excellent choice for your-10.
Regards,
[i]Rhonda Barrett-Bewley[/i][i][/i]
Barrett Precision Engines, Inc.
2870-B N. Sheridan Rd.
Tulsa, OK 74115
(918) 835-1089 phone
(918) 835-1754 fax
www.barrettprecisionengines.com
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Belue, Kevin
Sent: Thursday, August 03, 2006 10:04 AM
To: 'rv10-list(at)matronics.com'
Subject: IO-540-C4B5 engine choice
I'm thinking about an engine for my plane and would appreciate info on the following:
Has anyone installed an IO-540-C4B5 engine in an RV-10?
Does anyone know of problems using this engine in an RV10?
[b] [/b]
[b]Kevin [/b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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dav1111(at)cox.net
Guest
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| Posted: Thu Aug 03, 2006 5:42 pm Post subject: IO-540-C4B5 engine choice |
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N710RV (flying RV-10) has an IO-540-C4B5. It0 is the same engine that Van's sales as the D model, with a different data0 plate. Piper specified the design specs for their Apace aircraft and0 Lycoming took the 260 HP engine and downrated it from 2700 rpm to 2550 and put a0 C4B5 data plate on it.
How do I know? Both engines have the same0 part numbers for all the internal parts.
I bought a core and had my IA overhaul the0 engine. I run it at 2700 rpm for the full 260 HP. Works0 great.
Russ Daves
[quote] ---
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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KBelue(at)drs-tem.com
Guest
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| Posted: Fri Aug 04, 2006 3:53 am Post subject: IO-540-C4B5 engine choice |
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Thanks everyone for the engine info.
[b]Kevin [/b]
From: Robert G. Wright [mailto:armywrights(at)adelphia.net]
Sent: Thursday, August 03, 2006 5:21 PM
To: rv10-list(at)matronics.com
Subject: RE: RV10-List: IO-540-C4B5 engine choice
Additionally, Certificated airplanes either call for the C4B5 or the D4A5. The Piper Aztec uses the "C4B5" which is rated for 250 HP at 2575 RPM. The EXACT SAME engine turning at 2700 RPM gives you 260 HP, and this is the designation of "D4A5." I just went through this last night with my overhauler who wrote in my engine logbook ...C4B5... As an experimental builder I just run the engine at 2700 RPM and I'll be operating a D4A5. This is not overrunning the engine like stroking or high compression pistons does, and reaching recommended TBO should be a non-issue as long as you take care of your engine.
From the Lycoming webpages here's an excerpt for the C4B5, the D4A5, and how you arrive at each derivative starting from an O-540-ALA.
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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