Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

I just got a Hanger 9 Arrow with an evoloution 46 engine and radio at a price I could not turn down :) I have always run OS in the past and never considered an Evolution engine but now I have one.

The engine with the 3 bladed training prop sucks[:@] It runs very well but power is almost non existant, long takeoff roll that barely gets out of the grass, and almost no speed in flight. im hoping that is just the prop causing this poor performance.

I want to put an APC on there, does anyone know which size APC gets the most performance out of the Evo 46 ???

Thanks !!!!

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

I put an APC 10/7 on my sons Arrow - at worked really well (Until he pulled the tail off in mid flight)

I too was dubious about Evolutions but am quite happy with their performance (We currently have 3 of them flying - 1 in a Twist PnP, 1 in a PTS Mustang without the trainer gear on it and the ex-Arrow one in a 40 size SticK) - they all perform as well as any of the cheaper OS's (46LA 40FX) that we have and it will be interesting to see how long they last.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

There are a few in my club.:D They run as strong as any OS .46.:D They are actually made by the same company that makes MAGNUM.:D They are true "ABC" engines that will easily outlast the nickel plated OS'S.:D I would not hesitate one bit to buy one.:D

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

I was always an OS man also. A few years ago, I got an Evolution TPS to review for RCU Magazine. I would easily buy any engine Evolution makes!

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

That is great news Motorman. I used to be an OS man myself because they ran so great, but after every OS I ever owned peeled the liner in a relitively short period of time [:@] I will never buy another OS [:'(]

Glad to hear the Evolution puts out a good amount of power, it must just be that stupid trainer prop. This arrow would barely get off the grass with that prop. I will try an APC 11x6 and see what happens.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

I have both the .45 and .46NT. Both are excellent engines.

First, put a Towers glowplug in your NT. You should get a huge boost over the OS 8 plug, as that is too cold. I also put a Towers muffler on mine and saw a jump in RPMs.

I'm using an APC 12.25x3.75 on mine now. It's on a Somethin Extra. I can hover at less than 1/2 thottle with it since switching to the Towers plug. An APC 11x7, or something in that range will get you a whole lot of RPMs, but it sure is strong with 12" props too.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Let's see. You said an Evolution will easily out last an ABN OS. Evolution has only been around 5 years or so and OS has been making ABN for over thirty. Can you tell the future?? I have an OS45FSR ABC (ABN) that I bought in 1980. It is still running strong with the original piston and cylinder. Only thing ever replaced was the bearings. You don't even know if an evolution will last ten years. there is no history of them. For my money I'll take the oS over any Chinese engine any day. Except for the OS LC3, the #8 is OS's hottest plug, right up there with an Enya#3. No colder than a Tower.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Don't forget to take the flywheel off.:D

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Why take the flywheel off ? I like the smooth idle the flywheel provides... A flywheel does not make the engine produce less power, it just affects the rate at which it accelerates, and the engine accelerates to its RPM so quickly its not an issue....

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

You say the evolution will outlast an OS ABN engine??? Evolution has been around less than 5 years. Can you see the future? Saying an evolution will outlast an OS is a rash statement not based on fact. There is no precedent. OS has been making ABC(ABN) engines for almost 30 years. I have an old OS45FSR ABC that I bought in 1980 and it is still going strong. Only thing ever replaced was the bearings and they lasted almost 20 years. I also have have several other FSR series engine at least 20 years old that are running strong.

Next to the LC3 plug which is a car plug, the #8 is the hottest plug OS makes and is as hot as or hotter than the Tower plug. It is equal to the Enya #3 which is Enya's hottest plug.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

From my experience, the OS #8 is rather "cold"

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Just checked OS page on their glow plugs. OS calls their #8 a medium hot plug and their A-3 a hot plug. Neither one is a cold plug and the OS#8 is about the same heat range as the Enya#3. At least they perform the same in the same engine. The Enya #3 is their hottest plug.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Loughbd
In my honest opinion OS engines are being made cheaper and cheaper with each model, but the prices just keep getting higher.:eek: Look at the FL.70. Do you really think a FL .70 will outlast a Magnum .70.:eek: You mention OS has been making ABN clyinders for years, do you not remember the peeling episodes a few years ago.[sm=drowning.gif] IF what you say about the nickel is true loughbd, OS would be useing nickel in there ultra Performance engines like the .12TZ, .21VZ-B, .46VX-DF and many others, but they do not.[sm=confused.gif] They use True ABC sleeves with these.[sm=confused.gif] OS knows what they are doing, they know the nickel will not hold up.:D That makes me ask this question. Is OS trying to cheapen the other engines[sm=confused.gif] It would appear that way, when allmost every other manufacturer uses Chrome with all there non-ring engines, not just some of them:eek:

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

You're right, OS is a cheap piece of crap and anyone that buys one is a complete idiot. They are trying to turn out as poor a product as possible so the company will fold and they can declare bankruptcy and everyone can quit work and go live on Okinawa. How could I be so stupid to ever have bought one?

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Several things,

That flywheel adds too much weight to the plane and the engine is very reliable without it. The flywheel makes it too docile, imo. These Evo engines run well and aren't known for quitting on you when adjusted right. There really isn't any reason to keep one on the engine unless you are very new to glow engines and don't have experienced club members around to help you out.

Yes, I would say that an Evolution engine in the .45, .46 and .61 sizes could outlast similar OS engines. There are some good teardown reviews on them by Clarence Lee. He reports quite a few good things about them in terms of quality of build, quality of materials, design, etc. Solid, single piece, milled crankshafts; not forged. Polished connecting rods. Chromed liners. Everything points to a goal of producing good quality engines. Plus, I've run the .45 and .46NT myself for hundreds of flights. And, they are priced right instead of priced right out of reason like OS.

When you stack obvious quality against declining quality you don't need fifty years of precedent. That is nonsense. OS does have a precedence of poor plating, covering up defects, rising prices, over pricing, etc.

Loughbd- you've been around these glow engines longer than me according to what you claim, yet I know more about glowplugs it seems.......

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

OS had ONE engine the 46FX that had the problem and is was just a few of them. Magnum had plating peeling problems, Asp had plating peeling problems, K&B had plating peeling problems and Fox had plating peeling problem. What I wrote about glow plugs came directly from the OS web page, the Enya page and several other pages dealing with glow plugs as well as from several books on the glow engine. So I guess you know more than the companies that make them. Must be nice to be that smart. Maybe you should apply for a job as a consultant.

I built my first model airplane in 1953 and got my first engine in 1955. I flew C/Land F/F all through the late 50's and 60's and still fly a couple of C/L airplanes. Started in R/C in the late 60's and still have my Babacock single channel radio that my dad gave me in 1966.

EDITED BY MODERATOR

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

These are cut and paste quotes from the Tower web site.

O.S. 8 Glow Plug Standard Long Medium Hot

O.S. A3 Glow Plug Hot

ENYA #3 is a Hot Heat (for 0%-5% Nitromethane Fuels) Long Glow Plug for
Any Engine that uses a Long Plug (Not specifically for Enya engines).

ENYA #4 is a medium heat (for 5%-20% Nitromethane fuels) long glow plug for
any engine that uses a long plug (Not necessarily for Enya engines).

TOWER POWER GLOW PLUG - Medium Length, Medium Heat Range Plug WITHOUT IDLER BAR.
Works on All 2-Stroke Engines, even .15 and smaller because it does
not have the idle bar that would normally hit the top of the piston

http://image.rcuniverse.com/gallery/...4/lg-52333.jpg

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Steve,


I would have to disagree about the prop size.
It seems most hobby shops will be glad to sell the 10x7 prop for any .46 engine, Evo included.

...But back-to-back flying with this size and with the 11x6 and 11.5x5 convinced me that the 10x7 is simply wrong.
It will fly some lighter, very sleek models, but for the typical 5 lb. plus .46 model, the sky is all uphill for a 10x7.

The plane will be pretty fast in level flight and in dives, but in climbs it will lose speed rapidly.
It will also not have enough thrust to fly through and exit maneuvers.

An 11x6 will lose very little speed compared to a 10x7, despite less RPM as well as less pitch, since it overcomes both drag and weight much better. The 11.5x5 will lose more speed, but would make the best maneuvering and climb power.

T/O will be much quicker too.


Bruce,


Engines that are made by Sanye China have been around for long enough, to know their P+L will outlast the OS ABN by a huge margin. The ABC assembly from Sanye has a long, positive history, in Magnum, ASP, SC, SY (and who know which other engines). So saying it will outlast the OS is not a rash statement.

Both, unfortunately, use bearings from similar sources, I believe...

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Yup the same place I found them. But obviously they don't know what are making either. Since I was wrong about them this info must be wrong about them.

Why did my post about motorman 37 being correct about OS making lousy, expensive engines get edited out. I'm just agreeing with the majority. I've seen the error of my ways and will never buy a second rate engine again. from now on nothing but the finest China has to offer.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Yup your are all right and I have so terribly wrong. OS is a piece of junk and I'll never buy another one. It nothing but China's best for me from now on. I can't believe I was so wrong.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

I use a 10x7 on a OS46FX on a SIG Kougar and it flies it just peachy. Every airplane uses a different prop. Fast planes like a Kougar like a high pitch short prop. Big floaters use a large diameter low pitch prop. High pitch gives speed, low pitch pulling power. Of course I'm using a second rate engine so that may be why. I'm going to throw it away and get a Magnum or one of those other Chinese things. At least they will fit the same mount as they are pirated copies of a poorly made engine. Cylinders flake off all of them you know.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Loughbd
My opinion on OS (nickel sleeves) still stands, and espescially with car engines. Why are there ultra performance engines chrome, if nickel is suprerier. Try a nickel plated RC Car engine and see how long it runs. They tend to get weak quite fast. Some people will argue that some of the best engines made have nickelsil pateing, but OS technique is not nickelsil.:eek: Hard Chrome is still the oldest and most durable, most expensive and hardest to apply.:D That is why I buy engines with the type of sleeve.
The only reason OS uses this Type of sleeve in my opinion is that they can be made

CHEAP.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

The ultra performance OS91VRDF is nickel plated. There most also be some other reasons for the OS using ABN instead of the ABC, than just saving money.

Webra50 and Thunder Tiger pro46 both being very good engines is also using ABN on the sleeve instead of the ABC.

IMO longevity is not the only important thing for a modeler here but, reliability and power. I dont have the Evolution so I can not say anything about it.

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

Amir,


Although the Tower web site does state this sleeve is ABN, Bill Baxter (BAX) got on the horn here, stating the OS.91VRDF sleeves are true chromium ABC and that the Tower tech dept. often makes these boo-boos in their product descriptions...

RE: Evolution Engine - Is it any good or just beginners junk ???? Which Prop ???
 

The nichol is softer than chrome and hence engine will breakin faster. If nichol is applied good it will still give long service.