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  #21  
Old 11-14-2017, 08:31 PM
dwranda dwranda is offline
 
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Location: Jamestown,NY
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Quote:
Originally Posted by bret View Post
When I started the build I also wanted a NEW engine but the $ thing was a big factor for me, found a deal on B S, a certified engine and prop out of a Mooney, spent more on the avionics than the power plant. don't forget about the long or short motor mount if deciding to go with a 360, the 7 and 9 share the same fuse and I went with the SJ cowl and 3" extension for the CS prop.
I'm leaning towards the SJ cowl as well. Can you explain more about the motor mounts?
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  #22  
Old 11-15-2017, 05:12 AM
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bret bret is offline
 
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Originally Posted by dwranda View Post
I'm leaning towards the SJ cowl as well. Can you explain more about the motor mounts?
my understanding is the 320 is lighter and for weight and balance, the mount is longer, further away from firewall and shorter for the heavier 360 used in the 7. some have used the 320 engine mount when using a light catto prop on a 7 to bring the W/B forward.
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  #23  
Old 11-15-2017, 06:11 AM
dwranda dwranda is offline
 
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Originally Posted by Rock View Post
I understand your apprehension to going with a fully electronic setup. I think that anything you can do to help bring the older Lycomings into the modern age, including simply upgrading to electronic mags, should help with performance and economy. Have you decided if you will go with the 360? Do you have any good engine candidates?
I haven't seen any 360's yet that have really tempted me. In May I was in Florida and went to Jesse Saints shop to look at an engine he had. I am kind of kicking myself for not getting it. It was 150 HP but included everything, prop, one pmag, and exhaust. Would have fit perfectly on my 9A when I was ready for it since it came off of one. The fact that it was 150 HP and I wasn't ready for it for maybe 1-2 years were my reason for not getting it. I'm trying to not be a HP snob but it's pretty hard
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  #24  
Old 11-15-2017, 06:34 AM
YellowJacket RV9 YellowJacket RV9 is offline
 
Join Date: Oct 2012
Location: Clearwater, FL KCLW
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Quote:
Originally Posted by dwranda View Post
I haven't seen any 360's yet that have really tempted me. In May I was in Florida and went to Jesse Saints shop to look at an engine he had. I am kind of kicking myself for not getting it. It was 150 HP but included everything, prop, one pmag, and exhaust. Would have fit perfectly on my 9A when I was ready for it since it came off of one. The fact that it was 150 HP and I wasn't ready for it for maybe 1-2 years were my reason for not getting it. I'm trying to not be a HP snob but it's pretty hard
Decide on some performance benchmarks that you "must have". My mission is either 30 minute fun flights around the area, or 3-hour cross countries to visit family. I am not super concerned about climb performance (I can still climb ~2000'FPM solo), I live at sea level, and an extra 10 knots of cruise would only save me 15 minutes on those long cross countries. So FOR ME, 150HP is just fine. I cruise around 140KTAS on ~6GPH. I would have been open to more HP, but the 150 was a screamin deal for me at exactly the right time in my build. A small performance hit was worth it to snag the deal. Plus, I can always add a bit of performance with a new prop, electronic ignition, and various other tricks.

As I mentioned earlier, if I could go back I would have expanded my search to include 360's, but wouldn't hesitate to pass up the right deal on a smaller engine. Remember, Van designed the plane around 115-160HP. It's not like it's a slouch with 150-160HP.

Chris
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  #25  
Old 11-15-2017, 07:10 AM
dwranda dwranda is offline
 
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Chris,
Good points!! That's about what my missions will look like as well. The learning curve I'm in now is trying to figure out what exactly is a "screaming deal". I'm thinking the one Jesse had would probably fit into that category. My eyes are open for all possibilities(320 or 360).
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  #26  
Old 11-15-2017, 10:24 AM
Rupester Rupester is offline
 
Join Date: Dec 2005
Location: Mahomet, Illinois
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I got my 160HP IO-320 from Aerosport Power in 2009, and it has been a wonderful performer in the five years I've been flying. I opted for Slick mag on the left and Lightspeed EI on the right, to offer a combination of performance and dependability. The Catto 3-blade is light, smooth, and great compromise for a FP.
The airplane does everything I wanted it to do and then some. As others said, climb performance is outstanding, and the economy running LOP is way better than I expected. Typical cruise for me is 146ktas at 6.5 to 6.8gph; running ROP gets a little more speed, but uses 20% more fuel.
I know many 9/9A flyers who run O-360s and are fully happy with their choice. I am just as happy with my IO-320 and have never looked back.
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  #27  
Old 11-15-2017, 02:27 PM
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Raymo Raymo is offline
 
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I found a mid-time O-360-A4M (solid crank) on BS for $8k + $500 shipping from a 2002 Piper Archer that was in an AZ flight school and flew around 100 hrs a month. The plane was destroyed in a wind storm.

Stripped off the carb (sold), exhaust and one mag (sold). Added AFP fuel injection, Vetterman trombone exhaust and 1 P-Mag. I have about 15k in the engine with 10 years of expected use.

You should also look at insurance websites for deals on planes that are totaled for one reason or another. Highest bidder gets the plane and you can part it out. This is how I got most of my Dynon Skyview system and still have the O-235-L2C to rebuild (prop strike) and sell.
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  #28  
Old 11-15-2017, 02:51 PM
dwranda dwranda is offline
 
Join Date: Jan 2015
Location: Jamestown,NY
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Quote:
Originally Posted by Raymo View Post
I found a mid-time O-360-A4M (solid crank) on BS for $8k + $500 shipping from a 2002 Piper Archer that was in an AZ flight school and flew around 100 hrs a month. The plane was destroyed in a wind storm.

Stripped off the carb (sold), exhaust and one mag (sold). Added AFP fuel injection, Vetterman trombone exhaust and 1 P-Mag. I have about 15k in the engine with 10 years of expected use.

You should also look at insurance websites for deals on planes that are totaled for one reason or another. Highest bidder gets the plane and you can part it out. This is how I got most of my Dynon Skyview system and still have the O-235-L2C to rebuild (prop strike) and sell.
I think I would be very happy with your firewall forward setup!!
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  #29  
Old 11-15-2017, 04:07 PM
Dreamin9 Dreamin9 is offline
 
Join Date: Aug 2016
Location: Near Buffalo, NY
Posts: 68
Default Upgrade 150 to 160

If the OP were to stumble on to a real nice 150 that fit under the cowl as is, how hard/expensive would it be to swap in the higher compression pistons for 160hp?
Carl
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  #30  
Old 11-15-2017, 05:17 PM
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scard scard is offline
 
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We have more than a few hours on our -9a O320 and this will be the first time I've said it out loud, I would install an IO360 if I had it to do over again. I have even had recent dreams of simply picking the beautiful Barrett IO360 off of the shop floor and mounting that sucker to the -9... I love our 9a, and it is amazing how much that wing loves 13.5k', but the lack of power up there is very frustrating when you want to get to 16k' for a "few minutes".

There, I said it. I feel better .
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