Engine Choice for Aeroworks 60/90 Yak 54

[granspeed]

I just got a AW 60/90 Yak and am having a tough time deciding what engine to mount.

I have an OS61FX which is already feeling like it will be under powered.(and it's never been flown yet!!) I know for sure, I'll be wanting a more powerful engine. Because of economics, I won't be able to buy a new engine for 2 months or so. I'll be using that time to try to figure out what the hell I want since I am still new to Glow engines

So far, What I thought might be a good choice are below;

OS91FX
OS120AX
Saito FA-125A
YS110-S

Any and all recommendations will be appreciated!! And if anyone has run any of these engines on a AW60/90 YAK I please let me know how it flys and if there are any problems mounting these motors!!

Thanks in Advance

[skyesdad]

I don't have the yak but the 260 and the 91 fx works well have thought about putting my YS 110s in there but the 91 is working well so we will see

[LanceLKs]

BME .90

[ferocious frankie]

Saito 100 or O.S. 91

[Geno]

I was thinking for a 2 stroke: os 120 and for a 4 stroke: saito 125

[granspeed]

	Quote: Originally Posted by skyesdad
	I don't have the yak but the 260 and the 91 fx works well have thought about putting my YS 110s in there but the 91 is working well so we will see

What size prop are you turning on your 91FX???

Also, what kind of top end and idle rpm are you getting?

Got the 61FX running today with a 13x7 prop and with a slightly rich setting I tached the topend at 9400rpm and idle at 3500rpm. Hopefully I'll be able to turn down the idle once the engine is broken in and leaned out.

[Mark Dennis]

The 61 will be ok for sport aerobatics but if you want to have good vertical the OS .91FX or a Satio 1.15-1.25 will be perfect. They all will fit just fine.

[granspeed]

Thanks for the info!!

I was eyeing the Saito 115 earlier this week at the local hobby shop and was wondering if it would fit in the cowl or not.

[STANG KILLA SS]

were flying ours with a saito 100. and its balistic. tons of power.
if we had to do it again we would probly do a saito .91. weve seen a video of one with it and it has tons power, even from a hover, could go straight vertical.

[granspeed]

Ended-up flying with a FA115. It's a blast. I can get into all kinds of trouble and just punch out of it with raw power!!
Biggest problem I had with it was to mount the engine. Generic engine mounts would not fit on the motor box. Only thing that fit perfect was a Saito OEM engine mount and it had to be mounted inverted. Which also makes the carb sit below the tank, so it makes carb set-up tricky.

Thanks for all the help everyone!!

[classclown]

It'll be great with the Saito 1.25, but I think the YS 1.10 would be my choice.

[ExtremeYAK110comp]

what do u guys think would be an overall better choice. the a,w extra or yak .60 - .90? iam useing a super tiger . 90 and JR DS 821 servos with 6 volt lipo batters. but cant decide witch airframe i want to use.