Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Mid size engines advice

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Old 12-03-2004, 12:26 PM
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kmtranmd
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Default Mid size engines advice

Can you guys give me some recs for 40-50 size and 60-90 size engines. I don't want to spend the price of Jett engines. They are good. But I think they are overpriced. I want more bang for the buck I guess. 100-200 bucks is more of what I have in mind. Example would be like the Magnum 52XLS that I bought recently.[:-]
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Old 12-03-2004, 03:44 PM
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Default RE: Mid size engines advice

It TOTALLY depends on what airplane for this but...

In the 40-50 :

TT Pro-46
Irvine-53
MVVS-49
Rossi/Morris-45
Webra-50GT
K&B-48
OS-50SX

What are you gonna put 'em in?
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Old 12-03-2004, 05:23 PM
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Default RE: Mid size engines advice

I'd add the GMS 47 to that list. As for 60s you can't go wrong with a Rossi.

My $.02
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Old 12-03-2004, 06:03 PM
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Default RE: Mid size engines advice

For the .60, look at the K&B Twister. Light weight, good horsepower, and a good price.
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Old 12-03-2004, 08:55 PM
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Default RE: Mid size engines advice

The GMS appears to be hit or miss: The folks on here who are really smart engine folk, love them...others have had problems- you mileage may vary---

Oh yeah 60's ---

YS-60 if you can find one
Rossi-60/65/67
K&B-61 is supposedly light and powerful
Tower-75 (while not a "60") it is a great runner and affordable
OS-61FX has a good rep. not as powerful as the others listed-(dunno the K&B)
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Old 12-03-2004, 10:27 PM
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Default RE: Mid size engines advice

You guys still like the YS60 eh???
I have 2 of those, one rear and the other side exhaust. Have not run them in 5 years. They were good for their time in the 90's. Don't know if they still idle well.
My only concern with YS and Rossi is weight...
K&B twister is interesting suggestion. I will check it out.
I have the Tower 61, awkward muffler screws mount, pain in the ass to deal with... and not adequate muffler, very loud... but seems to have good power.
I have the Magnum 52, has more power than OS46FX. Anything beats that besides Jett 50???
I plan to put the Magnum 52 in the Kangke F20 I just ordered today.
I need recs to power the GP Corsair 40ARF, which is supposedly heavy...
Also needs to power Phoenix Models 300S 40 size ARF which seems pretty light.
I guess my basic question is advice for 50 and 60-90 size engines to power warbirds and prop jets as I move away from sport aerobatic type.[:-]
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Old 12-07-2004, 03:31 PM
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Default RE: Mid size engines advice

Any of the engines mentioned here can make good speed engines. All depends on the aircraft application and reslulting prop selection as to how effective they will be.

If you need a bit more power, bolt on a jett-stream muffler to any of them.

My personal favorite 'econo' combo is the TT-46 with the jett-stream. Turns up quite nicely, and is pretty well behaved.

I have not personally tried the Mag52 yet, but I understand its pretty good on top end power. Some of the 3D guys have been a bit disappointed by it though.
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Old 12-07-2004, 05:25 PM
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Default RE: Mid size engines advice

Your best bet these days for the .60 is the Tower .75 for $95.00 they
just flat scream ! [sm=thumbup.gif]

FBD.
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Old 12-09-2004, 01:20 AM
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Default RE: Mid size engines advice

From what I have read on here some folks are having mid-range problems and/or airleaks with the Mag-52 (Supposedly they have alot of power-)... For the money it might be worth a try (for some folks-) but I avoid Magnum 2 strokes generally-

There are quite a few engines performance/speed-wise between the Magnum-52XLS and the Jett-50, see my previous list for a few--(Novarossi and West-50 shoulda been on there also...)

I would recommend 4 cy. for both the Corsair and the Extra 300S, the warbird needs to have that awesome sound and the Extra needs torque for bigger props. (Reads: Saito-72/82, YS-63FZ, OS-70 II)

Cheers!
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Old 12-09-2004, 03:34 PM
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Default RE: Mid size engines advice

Thanks for the input.
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