ORIGINAL: alfredbmor
ORIGINAL: rheauljj
I am considering purchasing a Saito .82 (same physical size of the .72) for a BTE Venture 60 I'm currently building. I've never owned a 4C engine, but they intrigue me. Should I make the purchase or should I consider another more appropriate engine?
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Why buy a 4C versus a 2C?
I would not buy a 82 to pull a 60 size frame. Even that it could do, it wouldn't do it easily. I should buy the .91 or even the 1.00 which is very popular because of its size and power to weight ratio.
You can always go and buy a 2 stroker anytime as Que pasa says and forget about the world of the 4 strokers which are better in fuel efficiency, real in sound and easier to start, but that is your choice.
Answering strictly your question: You will never regret on buying a Saito 4 stroker, and you decide to not buying it, you will always thing on getting one sooner or later.
I agree with alfredbmor. While I LOVE my Saito .82's (I have three of them), I don't think they would be the best choice for a 60 sized plane. I have a 1.25 Saito on a 60 sized Edge 540, and it works well.
Too much power is NEARLY enough! 
(as long as you keep it LIGHT!)
Now, about your question - why buy a 4C? If money is tight (and when isn't it?) you might look into a Tower Hobbies .75 (2C) for your 60 sized Venture. As for my own personal preference, I find myself buying nothing but four strokes after getting my first one. I guess you could say that I am becoming a four-stoke man! There is nothing wrong with 2C engines, I just like the throttle response, the sound, and the power band on 4C engines better.
Of course, I am paying a lot more money to get those things. However, the way I look at it, my daughter and son-in-law are doing just fine on their own. They don't NEED no stinkin' inheritence! [sm=lol.gif]