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  #1  
Old 01-17-2018, 08:12 PM
Davoakes@att.net Davoakes@att.net is offline
 
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Location: Greenfield, IN
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Default I0360 install

Is anyone considering mounting a I0360 on your RV 14?

I was told that a 360 could be increased to 200-210 HP I do not know the truth.
I know about 200 hp 360's but what would a 10HP decrease do to the performance. Is it worth considering?
Any thoughts
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  #2  
Old 01-17-2018, 08:30 PM
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mill2978 mill2978 is offline
 
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Location: Erie, CO (KEIK)
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Default

You can get 10:1 pistons for the IO-360. Is reported to add 12-15hp, it also shortens the TBO from 2000hrs to 1000hrs.

The RV-14 has an IO-360
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  #3  
Old 01-17-2018, 08:46 PM
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RV8JD RV8JD is offline
 
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Quote:
Originally Posted by mill2978 View Post
You can get 10:1 pistons for the IO-360. Is reported to add 12-15hp, it also shortens the TBO from 2000hrs to 1000hrs.

The RV-14 has an IO-360
Hmmm ... Up until very recently, I had an RV-8 with a parallel valve IO-360 that had 10:1 pistons installed by LyCon when the engine was brand new. That engine has 1940 Tach hours on it now and is still going strong. Never had a cylinder off or any other major work done to it.

Although TBO doesn't mean much for Experimental airplanes, can you provide a reference for your statement that "... it also shortens the TBO from 2000hrs to 1000hrs."?
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Last edited by RV8JD : 01-17-2018 at 08:56 PM.
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  #4  
Old 01-17-2018, 08:48 PM
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N941WR N941WR is offline
 
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The issue isn't the HP but the LB's.

The parallel IO-360 is just too light. However, you can install an IO-360 angle valve in a -14.

Van's prototype -14 (taildragger) has this engine and is a bit faster than the IO-390 powered RV-14A.
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  #5  
Old 01-17-2018, 09:33 PM
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mill2978 mill2978 is offline
 
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Quote:
Originally Posted by RV8JD View Post
Hmmm ... Up until very recently, I had an RV-8 with a parallel valve IO-360 that had 10:1 pistons installed by LyCon when the engine was brand new. That engine has 1940 Tach hours on it now and is still going strong. Never had a cylinder off or any other major work done to it.

Although TBO doesn't mean much for Experimental airplanes, can you provide a reference for your statement that "... it also shortens the TBO from 2000hrs to 1000hrs."?
I'd have to refer you to Barrett Precision Engines. It was in some of the info I got from them when I was deciding on my engine. I opted for the 8.7:1, not for the difference in TBO, but for the desire to burn 91UL.
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  #6  
Old 01-18-2018, 06:27 AM
6 Gun 6 Gun is offline
 
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Smile engine

Maybe you could find a Angle valve that needs overhauling buy new cylinder kits and have the case machined for larger cylinders and have a 390 engine.Cylinders for the 390 are cheaper than angle 360.
Bob
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  #7  
Old 01-18-2018, 06:58 AM
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bret bret is offline
 
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A stock Io 360 A1A is 200 HP. 10 HP is not that significant unless you are going to Reno, at altitude I loose a lot more than 10 HP, but she is still happy
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  #8  
Old 01-18-2018, 08:51 AM
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Jared_Solomon Jared_Solomon is offline
 
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Default I can't see why you would

Van's numbers on their site are slightly skewed because they publish the numbers for the IO-360 on the -14 as instead of the -14A. Having the nose gear eliminated helps improve performance a bit, almost making up for the 10hp difference, making the IO-360 looks faster. It's not, it's the missing nosegear. Apples to Apples on the equivalent air frame, you climb faster and will be able to go faster with the IO-390. However I don't think that really the reason to choose the IO-390.

My RV-14A runs fantastic on the IO-390. My CHTs run between 300 - 315 (IO-390 has excellent cooling). Mid 300's on extended VY climbs. I loiter around at 55% - 150kts TAS burning 7.5 gph. The price of the IO-390 and Angle Valve IO-360 are about the same. The angle valve will run hotter (possibly less longevity) and not climb as well for very little savings in money. You can't go wrong with the IO-390 on the -14/A
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  #9  
Old 01-18-2018, 09:53 AM
rvbuilder2002 rvbuilder2002 is offline
 
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Location: Hubbard Oregon
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Quote:
Originally Posted by Jared_Solomon View Post
Van's numbers on their site are slightly skewed because they publish the numbers for the IO-360 on the -14 as instead of the -14A. Having the nose gear eliminated helps improve performance a bit, almost making up for the 10hp difference, making the IO-360 looks faster. It's not, it's the missing nosegear. Apples to Apples on the equivalent air frame, you climb faster and will be able to go faster with the IO-390. However I don't think that really the reason to choose the IO-390.

My RV-14A runs fantastic on the IO-390. My CHTs run between 300 - 315 (IO-390 has excellent cooling). Mid 300's on extended VY climbs. I loiter around at 55% - 150kts TAS burning 7.5 gph. The price of the IO-390 and Angle Valve IO-360 are about the same. The angle valve will run hotter (possibly less longevity) and not climb as well for very little savings in money. You can't go wrong with the IO-390 on the -14/A
The IO-360 installed in the tail dragger prototype cools equally as well as the IO-390 in the trigear RV-14.
Your good cooling performance is for the most part related to the cooling system design than it is to it being an IO-390.

I do agree that the performance difference between the two engines will mostly show up in take-off and climb...... but differences are not very large between the different engines.
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  #10  
Old 01-18-2018, 09:57 AM
rvbuilder2002 rvbuilder2002 is offline
 
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Location: Hubbard Oregon
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Default

Quote:
Originally Posted by Davoakes@att.net View Post
Is anyone considering mounting a I0360 on your RV 14?

I was told that a 360 could be increased to 200-210 HP I do not know the truth.
I know about 200 hp 360's but what would a 10HP decrease do to the performance. Is it worth considering?
Any thoughts
There are two different Lyc IO-360's so it depends on which you are talking about......

As Bill already mentioned, the parallel valve IO-360 which is normally rated at 180 HP is quite a bit lighter than the angle valve engine the airplane was designed around, so it wont work.

The angle valve IO-360 (200 HP) or the IO-390 (210 HP) are what you need for an RV-14(A).
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