What's the best 4 stroke engine for the FF OMP Edge? I was thinking about using a Saito .72.
Thanks,
Ryan

.72 is a little overkill, but would work. Whats the weight on that saito VS. a YS .63? I'f it's close you'll be ok. TONS OF TORQUE=GRIN

YS .63 weighs a little more than Saito's .72, yet is more powerful, believe it or not. Great, reliable engine (YS) with TONS of power/tourqe. IMO the best 4-stroke for the OMP Edge, or any profile. But saito .72 is also a good choice, YS just mo betta



I'm anxious to hear a report about O.S.'s new pumped .70 4-stroke. They're claming it weighs less than a saito .72 (old O.S. .70 is a boat anchor). If this is true, and comes close to YS's power..........look out............the only problem is it cost's 300 clams[]

Where is the best place to get the YS .63?

[link=http://www.centralhobbies.com]Central Hobbies[/link] usually has them in stock at a good price. I got mine from them when no one else had them in stock.

Has anyone tried the Magnum .61 four stroke? only 15.5 oz w/ muffler. I am considering this, but do not know about the power of this engine.

What is the best prop for the YS .63 on a funfly like this?

I've tried a few and I have about settled on the APC 13X4W, in fact it's what's on my YS 63 powered OMP FF 540 right now.

Do you think that the Y.S. .63 is a better engine for this airplane than the Saito .72?

No, not really. I think the Saito would be a fine choice, especially if you are new to 4 strokes. YS engines are great, but they are not as easy to set up as some of the other brands such as Saito. I run YS, but I wouldn't hesitate to recommend a Saito .72 for this plane.

Does the pressurized fuel system on the ys make a noticeable difference? Does the ys make more power than the saito?

The pressurized fuel system makes it easier to mount the tank in the wing..but lots of profile flyers like the tank to be visible. Also, an 8oz tank won't fit in the OMP wing without modifications.

Judging by the RPM figures I see, I think the YS is marginally more powerful (Constrictor has a Saito 72 and a YS 63 and says he notices no difference). The YS gets worse fuel mileage and needs 20% nitro to perform at its best.

I think if you are asking these types of questions (no offense, no harm in asking questions!) that you might be happier with the Saito. I love YS engines, I own only a couple of OS's and one of them is on Ebay right now...so basically all my 4 strokes are YS. But I'm a total gearhead, tuning engines is instinctive to me. If you are new to 4 strokes, the YS might be a bit overwhelming as a first 4 stroke engine. I just think the Saito would be a better choice as a "plug and play" engine. The YS demands a very exacting set up and tolerates very little deviation from this set up. Once properly set up, however, they are a joy to operate.

Thank you very much, Chuck, for answering my questions. I think that I will get the Saito since it has basically the same power, will run on 15% fuel, runs just as well, and is easier to tune. I have a couple other four strokes, but I am relatively new to four stroke engines and I love their power and fuel economy.