67" Fusion X3D ENGINE CHOICE

[moose]

Well my son has been building this kit from scratch and is nearing completion, the major things missing are the servos and engine, now we are talking hardcore 3D performance here and really dont know if I should go 2 stroke or 4 and either way which one to get. I have never had any success with a 4 stroke and found the OS 90 to be very close to the OS 60 in performance. In any case I have been very far from nitroes for some time now..... GASSERs all the way but I need help choosing this one.

All inputs welcome but also please provide the recommended prop for each of your choices.

Bottom line is I want my son to enjoy this plane so I want to make sure I have a reliable power plant.

[joebob2]

If you want to go 2 stroke, get an OS 1.20AX. Perfect for the Fusion. For 4 stroke, the YS 1.10 or Saito 115 or 125 are the engines of choice.

The Fusion is a really great flyer. 3D's very well, and can fly precision well, also.

[VooDoo Child]

I had one with the AX120 and one with the Saito 125 and one with a YS110S.The YS had amazing power but the flight time was very short due to tha fact that the motor is a nitro hog.The Saito also had great power but the airframe was not a big fan of the low rpm vibrations.I liked the OS the best because it had the same power as the Saito but the OS had much less vibrations and the flight times where great.With the price of nitro now adays i will stick to OS,10% fuel is only 18 bucks a gal,the Saito loves 30% heli and last i checked it was 28 bucks a gal.If you want more power from the OS,check out Weston Genisis 3D throttle pipes,these things are amazing.Good luck with the Fusion, it is a killer plane,my new 80" Fusion is almost done

[VooDoo Child]

	Quote: Originally Posted by joebob2
	If you want to go 2 stroke, get an OS 1.20AX. Perfect for the Fusion. For 4 stroke, the YS 1.10 or Saito 115 or 125 are the engines of choice. The Fusion is a really great flyer. 3D's very well, and can fly precision well, also.

You the same Joebob that my buddy WrongWay bought the 60 MoAss from????

[moose]

Did you guys have any CG issues as the OS 120AX weighs around 30oz ......what prop is best for the AX120 and while we're at it what servos were you using.....I'm a JR guy

[Salmon]

I've had three here at OMP. 1st one had an OS .91FX and is the one Andrew Jesky is flying in the video online. That plane is still flying strong with the .91FX. My personal one had a YS 110 and was an amazing combination with INSTANT throttle response. That plane was lost last year in a midair. Third one was outfitted with the new OS 120AX and I like that combo as much or more than the YS 110 combo. With the 120AX, the motor is cheaper, you can run 10% and it has essentially the same power as the YS. The advantage of the YS combo though is that instant throttle response. Actually really amazing with a 16-4 or 16-6 prop.

[steedav8ranger]

either the 120OS, the saito 125 (or even the115), or the YS will be awesome power.. just use your personal judgement on what you like best. all are proven bada$$ on this bird

my personal fav. is the 125, but i am just a saito guy

[joebob2]

	Quote: Originally Posted by VooDoo Child
	You the same Joebob that my buddy WrongWay bought the 60 MoAss from????

Depends. Is he mad at me or anything?

Yeah, That's me.

[VooDoo Child]

	Quote: Originally Posted by joebob2
	Depends. Is he mad at me or anything? Yeah, That's me.

That was a sweet deal for a sweet bird,i missed it by a day I was there at Jax FX3D when it showed up and i get to see it on weekends LOL .Any more deals like that give me a shout Now back to the Fusion

[moose]

Okay guys thanks for all the inputs, I'm going to order the OS 120 AX through tower hobbies but just a few more questions

1) What servos

2) What prop brand and pitch

[Grnd0]

1.20AX & Xoar 17-6

I put a macs header and aluminum beer bottle muffler on
mine and gave it more power. I should have my 80" ready
in a few days. The 67 flys way better than the 52 so the
80 should really rock.

Larry

[plowboy]

	Quote: Originally Posted by Grnd0
	1.20AX & Xoar 17-6 I put a macs header and aluminum beer bottle muffler on mine and gave it more power. I should have my 80" ready in a few days. The 67 flys way better than the 52 so the 80 should really rock. Larry

What engine are you using for the 80"? TIA.

[Grnd0]

Poulan 46 gas. Same as Brilleli. Had trouble starting it after sitting a
few years and had to send to builder to look over. Should have it
back today. If it doesn't work out I'll put at least a 1.60 glow on.

Larry

[plowboy]

	Quote: Originally Posted by Grnd0
	Poulan 46 gas. Same as Brilleli. Had trouble starting it after sitting a few years and had to send to builder to look over. Should have it back today. If it doesn't work out I'll put at least a 1.60 glow on. Larry

Not trying to hijack this thread but, do you think a Saito 1.80 would be enough for the 80" plane? Salmon thinks so. Does anyone think that a 1.80 might work on this 67" plane. Is that pushing it?

[Grnd0]

Saito 1.80 on 80" should work fine. Keep it light. 1.80 on 67" no way.
I have a 1.20AX on my 67 and it's almost too much. Buy the way my
80" with the gas 46 weighs 13 1/2 lb, so with the Saito you could get
down to the 12lb range.

Larry