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  #21  
Old 12-24-2013, 05:24 PM
AeroBuilders AeroBuilders is offline
 
Join Date: Sep 2011
Location: Austin, TX
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Right....all you need is 93 octane (US based ratings).

This is what makes UL Power engines such a major advantage in my opinion. Modern engine control technology with FADEC and running on MOGAS for the major cost advantages. The main issue with UL Power 520is is the low engine weight, so that would have to be addressed during your initial build planning.
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  #22  
Old 12-24-2013, 07:56 PM
sailvi767 sailvi767 is offline
 
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Location: Charlotte NC
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I like the engine however most RV's will only be able to use 2700 rpm. That is the limit on most props and with a 2 blade you will get into tip speed issues above that. At 2700 rpm the engine is down a significant amount of power. It would really compare to a lyc 320.

George

Last edited by sailvi767 : 12-24-2013 at 07:57 PM. Reason: Correction
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  #23  
Old 12-27-2013, 12:37 AM
AeroBuilders AeroBuilders is offline
 
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New info that I have is.....

"Several prop companies are making new props for the UL520. Take-off rpm will be around 3100, cruise will be around 2800. The blades will be shorter than most props on a Lycoming but we should have plenty of thrust."

"MT, Catto and Whirlwind are all working on props for UL Power. And Airmaster has very nice constant speed prop options too.
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  #24  
Old 12-27-2013, 09:39 AM
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Isaac Isaac is offline
 
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Location: Peoria, Az
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Default ULPOWER 520IS

The UL power six cyl engine does look appealing but.....the UL Power website shows the price of this engine is listed at 27250 Euros. An internet check today indicates that the Euro to dollar conversion rate is 1 Euro = $1.38 US dollars which puts the cost at $37605.00 dollars.

A modern smooth running. FADEC controlled six cylinder engine would be nice to fly behind but $37605.00 is hard to justify. When you look at the HP to RPM graphs for the engine, it is only going to produce approximately 180 Horsepower at 2700 RPM which is typically the max RPM for most propellers. Even so, if this engine was priced around 25K$ I think a lot of people would be getting in line to buy one.

The Lycoming O-540 would probably be slightly heavier but would provide more power and would be comparable in cost.
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  #25  
Old 12-27-2013, 03:21 PM
AeroBuilders AeroBuilders is offline
 
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The UL Power is over 50 pounds lighter compared to most Lycoming choices. Also, if you contact UL Power about pricing I think you will find better pricing than what you listed (full retail). With the new prop choices coming available for UL Power 520 series it makes it a very good option in my opinion.

I recently decided, anything new that I build or buy needs to run on MOGAS....the trend for 100LL looks ugly to me.
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  #26  
Old 01-23-2014, 12:49 PM
Bernard Hartnell Bernard Hartnell is offline
 
Join Date: Jul 2013
Location: Grand Junction, CO
Posts: 49
Default Exhaust for IO360 200+ fuel inj. Engine trough Vans:

As I have posted, I am building up an IO360 200+ HP (235 hp) angle valve fuel injected engine instead of the IO390. My question this week to Vans was if the exhaust for the IO390, they plan for the 14, will fit my IO360.

Vans answer from Mr Blank: if you are going to use the IO-360-A1B6 engine in the RV-14, you can simply order the exhaust for that engine when you are ready. It will be the same one that is used on the RV- 7/7A.

So that takes that concern out of my thoughts. I don't know the manufacturer they use, but I want to squeeze efficiency not only out of the intake but also the exhaust!

Anyone know who makes Vans pipes? Blhartnell@ymail.com
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  #27  
Old 01-23-2014, 01:16 PM
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pierre smith pierre smith is offline
 
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Larry Vetterman...also an RV'er.

http://www.vettermanexhaust.com/

Best,
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  #28  
Old 01-23-2014, 02:32 PM
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JoeBlank JoeBlank is offline
 
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Quote:
Originally Posted by Bernard Hartnell View Post
Vans answer from Mr Blank: if you are going to use the IO-360-A1B6 engine in the RV-14, you can simply order the exhaust for that engine when you are ready. It will be the same one that is used on the RV- 7/7A.
Bernard,

Sorry, the answer I gave you is incorrect. I have been informed that the 7/7A exhaust won't work on the RV-14 due to the Tunnel design. That changes everything with the exhaust. We'll have to wait and see what develops in the Powerplant Kit that will work. Believe me, the engineers are really thinking this through so let's give them that latitude...
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Last edited by JoeBlank : 01-24-2014 at 12:37 AM.
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  #29  
Old 01-23-2014, 08:26 PM
glenn654 glenn654 is offline
 
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Posts: 591
Default Just a Thought

You know, considering the cost of a new IO-390 and the fact that an IO-540 could be had for the same money and the fact that so many RV'ers want to go as fast as possible (more power is always good) you would think that Van's would have designed the -14 to be able to use either engine.

And the cost difference between the motor mounts and cowls would be insignificant considering the total cost of building the plane as well as design and materials.

It's always nice to have options......anyone listening?

Glenn Wilkinson
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  #30  
Old 01-28-2014, 11:14 PM
Bernard Hartnell Bernard Hartnell is offline
 
Join Date: Jul 2013
Location: Grand Junction, CO
Posts: 49
Question Further along on my IO360 235hp

1.Light-speed Duel Plasma111 back along with their machining prep of flywheel.

2. Airflow Performance Fuel Injection system total flow and rebuild (non-certified) completed.

3. While waiting for fuselage and first two kit sections complete, I have learned that the individual elements to do a total rebuild and upgrade on an engine TAKES TIME! This is the time I am investing now vs later when the airframe is ready for it. Therefore, I hope that those at Vans who are in charge of procurement of contracted services are doing their work now too. When Van's reps speak about meeting customers needs on the Exhaust needs for this alternative engine rather than the IO360. There is no reason I can think of that would hold up their partners to creat the correct and similar exhaust as is specked for the IO390 for the IO 360 now.

I don't know who they use but Vetterman did not build the set for the 14 and told me they had not worked on one yet even for the io390. Does anyone know who Vans uses for the 14's exhaust system?

If you drill into any upholstery, avionics, exhaust or any accessory, none including Vans list anything for the 14 in their 2014 catalogues. Interesting how both the company and all vendors are not yet marketing any roll out items yet!
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