show871

Power comparison. Ys .63 vs .46ax, .90fx vs saito 100?????

Trying to get a realistic comparison. The first for a .40 size warbird, the second for a aeroworks .60 edge 540

Thanks

871

meaden

Well, it only takes two things to fly. Air speed and money.

liquid_TR

YS63 produces nearly the power of a OS 91 Surpass on smaller props. 46AX has no competition against it..

asmund

63 YS will eat the 46 OS alive.

FX 91 vs Saito 100, hmmm.... I do own a 91 FX and it will swing APC 14-6 at 11300 rpm, don`t think the Saito 100 can do that. My guess is that the FX will beat the Saito with a 15-6 too, but I don`t know for sure. The Saito will have faster spool up than the FX and is also significantly lighter at 600 grams vs 91 FX at 770 grams

liquid_TR

Well for speed applications, 91FX will take it hands down, but for 3D aerobatics saito 100 will have a much smoother response on 15x6 or 14x8 than 91FX. Saito will turn up to 9400 rpm on 15x6 APC with 15% nitro and over 9700 rpm on 20% nitro in my experience.

blw

My Feedback: (3)

You can figure in a smaller fuel tank with the Saito 1.00, so that would be more weight savings if weight is an overriding factor.

I would opt for a .91 to 1.00 for the Edge since it will be most likely flying aerobatics. I prefer the smoother and faster throttle response on the up lines over any 2 stroke for this kind of flying.

djlyon

My Saito 100 turned the 14/6 APC at about 10300 on 15% and about 10600 on 30%. My OS 91FX turned the same prop about 10800 on 15% but when I changed the muffler to a Performance Specialties tunned muffler it went to 11500. I never ran my YS63 on anything bigger than a 13/6 and I can't remember the rpm I got but I think it was about 11000 and I'm sure it would have fallen behind the Saito 100 with a 14/6 significantly.

Denis

show871

cool, ys for sure......and the only thing on the edge is I kind of want a basher 3d. I am basically going to try stuff out with it before my large scale stuff. ummmmmmm are the os 2 strokes more "crash proof" than the saito?????

Thanks

blw

My Feedback: (3)

No. You may want to compare replacement part costs between the two engines though.

The .91FX parts from Tower Hobbies are:

crankshaft $50.99
crankcase 97.99

Saito 100 at Horizon:

crankshaft 71.99
crankcase 55.99 (gold knight version)

rcdude7

My Feedback: (264)

Just don't crash .

show871

Thanks, saito it is!