Ive been looking at buying an EVO 46 does anyone know anything about this motor? They claim its already run in and preset factory and should never need adjusted.

Any info?

The Evo line of engines are very good engines, nothing wrong with them that I've seen, powerful and reliable.

No engine is going to be totally setting free. The Evo has limiters that are set ok for most people most of the time, but you'll still need to know how to set the needle of your engine, and depending on how you plan to fly the enigne (airframe, prop, etc) you may find the best needle setting is outside the limiter's range. This isn't a problem, the limiter can be adjusted or removed if you want.

It is one of the best 2-stroke engines I have.

I agree I have had little or no problems with my Evo .40. The only problems was a hole in the line to the carb. Replaced the line and everything was great, of course it took about 3 days to find the problem. It tears down easy also if your into that.

Lefty
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I have the larger 61 size and so far the results have been positive, I did have to adjust the low speed needle valve past the factorty setting but the engine runs great since then. The muffler is also very good at killing the engine noise.

Got two of them, sweet! Baffle in the muffler can be modified to make better power, without a lot of sound increase. Just being technical here, but they are actually closer to a .45, yes? Someone correct me if I'm wrong.

closer to a 47 actually. Displacement = .467

The Trainer Power System is closer to a .45

but then... .45 / .46 no big dif.

ah I didn't realize there were 2 different sizes in the 46 class.

Hi,

I searched for the specifications for this engine and found the following. It states the displacement is .455.

http://www.hobby-warehouse.com/evtrainpowsy.html

Hope this helps,

Wayne Miller

Wayne, you quoted number for the "trainer power system" Believe it or not, the TPS Evo and the Evo .46 are NOT the same engine. They are very close, but they have slightly different displacements. I haven't taken each apart to compare them, but I'm going to make a guess that the porting on the TPS is more conservitive to result in more torque and easier starting and idle handling, while the .46 is more aggressive, resulting in more power and higher peak RPM.

Well alrighty then I stand corrected, now I've got a question- which engine comes with the "Arrow" from H-9? Is it the .46, or the TPS?
At any rate, I'm happy with both the engines in my Alpha, and my Arrow. They are both real good, easy starting, more than adequate engines.

Jetts

I'm honestly not sure which is in the Arrow. I should know, one of my students have one, but I didn't pay that much attention. I'm actually fairly sure it would be the TPS, since the Arrow is listed as a trainer, and it's pretty much the same as the Alpha, just with a different airfoil. And I know the Alpha has the TPS.

Frankly, even if the TPS isn't as powerful as the .46, the TPS is still a fairly powerful engine, so the differences have got to be fairly small. I am surprised they have 2 different engines.

The Arrow has the TPS.
I have the TPS and the EVO .46 NT.
The 46 NT is more powerful. I could tell as soon as I started it that it had more spirit than the TPS.
Both are great engines.

I have the TPS, the .46 NT, and the .61 NT I am very happy with all of them. Good choice