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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 |
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 |
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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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 |
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 :D
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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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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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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). |
Scott,
I know you don't usually deal in "what-if's", but can you indulge me this one time? How much longer would the engine mount for the -14 need to be to put the CG where it would work for the parallel valve (I)O-360 and what would you expect the performance hit to be? |
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