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please submit your comments and pictures on your favori... - 1/17/2013 11:01 AM   
orthobird


 

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Status: offline 		Please submit your  comments, pictures, statements on your favorite .60 or .65 glow engine, 2 stroke.
please also mention which you believe is the best, most powerful, and most reliable engine of them all, in this class.

i am looking for an engine for an airplane to use with a tuned pipe.


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RE: please submit your comments and pictures on your fa... - 1/17/2013 12:42 PM   
Altered1


 

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Status: offline 		My Enya 60X

The engine note!  The stump pulling power, the simple airbleed carb.  Can't remember how old, on her third set of bearings (I think) Still got great compression, and quite happy on FAI fuel.


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RE: please submit your comments and pictures on your fa... - 1/17/2013 12:54 PM   
earlwb


 

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Status: online 		A Fox Eagle IV is arguably the best current engine one can get. Made in the USA too. No Chinese in this one. Plus Fox Manufacturing has a trade in program where you can trade in any clunker engine and get a 50% discount off the retail price for a new Fox engine.  The Fox Eagle IV outperforms most other .60 or .61 engines out there too. It runs just as good as my Rossi .60 engine if I use the same muffler on both engines. 

A number of years ago Model Airplane news did a big article review in which they compared a number of .60 engines and the Fox engine and Tower Hobbies engine both came out on top of the other engines and beat them out for performance. Plus the Fox engine did it all using 5% nitromethane fuel whereas the other engines were all using 15% nitro glow fuel.  The Fox engine is still tuned with more aggressive port timing so it does well with tuned pipes as it likes to turn higher RPMs. Most of the other current engines are detuned for using quieter mufflers and larger propellers in order to reduce noise.

If needed you can rotate the cylinder (on a new engine before you run it) to make it a rear exhaust engine too. The Rossi and Fox engines use the same exhaust screw spacing or outlet, so you can get a Mac's rear exhaust tuned pipe header to fit it too. But Rossi changed the hole spacing on some engines so you need to double check the screw spacing before you order one though.

Here is when I was test running a Fox Eagle IV and using a OEM standard muffler, a Fox Quiet muffler and a Performance Specialties Ultrathrust Muffler on the engine.





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< Message edited by Hobbsy -- 1/17/2013 1:58 PM >

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RE: please submit your comments and pictures on your fa... - 1/17/2013 1:02 PM   
earlwb


 

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Status: online 		But if you want a all out performance engine for classic pattern flying with a tuned pipe (although the Fox engine does run really well with a tuned pipe as well) then you want a Rossi .60 engine. You also want the in flight adjustable needle valve on the carb as well. This lets you adjust the needle valve remotely while in the air. It takes some practice and skill to setup the tuned pipe on a engine good and thus the remote control needle valve helps a lot, even if you are a expert. Rossi had more aggressive port timing on their engines which was more suited to tuned pipes.

Nowadays I would prefer using a tuned muffler on a plane instead of the tuned pipes. Much easier to tune the engine with them and they develop power almost as good as a tuned pipe. Jett makes them today and you can still find the Performance Specialties mufflers too.






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< Message edited by Hobbsy -- 1/17/2013 2:05 PM >

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RE: please submit your comments and pictures on your fa... - 1/17/2013 2:00 PM  1 votes
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Status: offline 		As of a couple of years ago Fox still had some of the .60 ABC piston and sleeve sets with pipe timing.

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RE: please submit your comments and pictures on your fa... - 1/17/2013 4:37 PM   
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Status: offline 		Kraft 61. Dont know why, its just a nice engine. Maybe because I got it from my buddy Bruce at Brucercengines.com (shameless promotion, couldnt resist).


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RE: please submit your comments and pictures on your fa... - 1/17/2013 5:38 PM   
MJD



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Status: offline 		OPS Super .60 FIRE is my all time favorite piped .60 pattern/sport engine - although I think you are looking for engines that are readily available off the shelf "now" so this is of little practical help. Immensely user-friendly, powerful, reliable, built like a brick you-know-what.

It's brother the Speed .65 is my fav .65 size engine, but of no use for this kind of application.

I'm a bit biased towards OPS obviously..

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< Message edited by MJD -- 1/17/2013 6:07 PM >

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RE: please submit your comments and pictures on your fa... - 1/17/2013 8:33 PM   
airraptor


 

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Status: offline 		OS 65 AX is very strong.

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RE: please submit your comments and pictures on your fa... - 1/17/2013 9:02 PM   
MJD



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Status: offline 		The Youtube video of the new Dirty Birdy ARF shows it flying with authority on a muffled .65AX.

http://www.youtube.com/watch?v=kUZY4EIRcpg

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RE: please submit your comments and pictures on your fa... - 1/17/2013 11:46 PM   
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RE: please submit your comments and pictures on your fa... - 1/18/2013 1:02 AM   
orthobird


 

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Status: offline 		this is all great info.  thank you all.
but the saito, will it spin same size prop as a rossi .60? and at same rpm?


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RE: please submit your comments and pictures on your fa... - 1/18/2013 2:18 AM   
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quote:

ORIGINAL: orthobird

this is all great info.  thank you all.
but the saito, will it spin same size prop as a rossi .60? and at same rpm?


no where close....

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RE: please submit your comments and pictures on your fa... - 1/18/2013 4:07 AM   
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Status: offline 		No , four stroke engines use their power in a different way than 2 strokes. Four strokes tend to turn larger diameter higher pitched props at lower rpm.


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RE: please submit your comments and pictures on your fa... - 1/18/2013 9:17 AM   
DerFly



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Status: offline 		Very, very keen on my classic 60/61's as I own a number of them.

I've always been wanting to pick up a good example of a Fox Hawk/Eagle but have nevertheless been put off by lack of suitable mufflers, particularly those of decent. volume.

Maybe an Eagle IV is waiting for me!

DF

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RE: please submit your comments and pictures on your fa... - 1/18/2013 11:24 AM   
orthobird


 

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Status: offline 		if you had to pick between the Rossi and the FOx, which would you go  with?

also, where to buy ?


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RE: please submit your comments and pictures on your fa... - 1/18/2013 12:10 PM   
earlwb


 

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Status: online 		Both engines are pretty much equal in output power.  But if you have a clunker engine, any brand,  you can trade it in for a new Fox engine at 50% off of the "retail" price.   If you go with a tuned muffler it of course costs extra, with the Rossi engines you can see the engines with and without the tuned muffler. Akthough Fox includes a standard muffler, it restricts the exhaust more. But if you are going with a full tuned pipe it won't matter what muffler comes with the engine. The Fox engine is a ringed engine and needs to be broken in good before you go tuning it for max power though.  I would expect that the Rossi engine, being a ABC design may not need quite as long of a break in period. But with tuned pipes one has to break them in longer to ensure they are loosened up good before you go for maximum power.

Fox Manufacturing: http://www.foxmanufacturing.com/index.php

Rossi Engine in the USA http://shop.vendio.com/RossiEnginesUSA/category/1/



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RE: please submit your comments and pictures on your fa... - 1/19/2013 2:16 AM   
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Status: offline 		I've has Fox, OS (short and long stroke) K&B, and Enya, but my favorite has always been my Webra. Rossi makes a great motor, but for a great do-all priced right motor, the Webra is hard to beat. Out pulled all the others I had and the carb is superb.

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RE: please submit your comments and pictures on your fa... - 1/19/2013 9:13 AM   
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Status: offline 		Sadly the Webra are now gone (bankruptcy about two years ago)...

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RE: please submit your comments and pictures on your fa... - 1/19/2013 1:03 PM   
ronwc



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Status: offline 		My Fox twin 60 -



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RE: please submit your comments and pictures on your fa... - 1/19/2013 4:03 PM   
earlwb


 

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Status: online 		well many years ago when I was really into pattern flying and pattern contests, I was a user of Fox engines. My first pattern planes used Fox Hawk .60's and later Eagle II's and III's. Duke Fox actually setup a couple of Fox .60's as rear exhaust for me too. At the time I was the first to ask about them, so he wanted to be sure it would work OK.  I still have one of those engines around here someplace along with the Fox branded Mac's tuned exhaust setup too.  I had refurbished my Fox Eagle II a while back and refurbished a Fox Eagle III as well. Since the engines tend to last forever if not abused they are a good buy. A year or two ago, I actually replaced the bearings and piston ring in one of my old Fox Hawk .60 engines that I ran with a tuned pipe on a Wolfgang Matt Atlas for a long time way back then.

Later I dabbled with some Rossi ,60 engines for a while as they had the in flight mixture control system, which was really nice to have in my opinion. But I quit later as the pattern flying changed to larger planes and events based on the old Las Vegas Tournament of Champions events with big cash prizes. Plus they started the changeover to the 1.20 four stroke engines in place of using .60 two stroke engines as well. Then later the planes became even more big with 1.40 and 1.60 size engines being used.  At the time it was getting too expensive for me to keep up with the changes that had been coming along with aerobatic flying.

But at the time it was something of a rarity to see pattern flyers using Fox engines. In the 1960's it was more common though. But in the 1970's and 80's less common. Most of the pattern guys were using Webras, HP, OPS, Rossi and a smattering of some others like Fitzpatrick or Kraft for example. But everyone seeing how my Fox engines actually ran and worked were very impressed and surprised even in some cases as their more exotic engines didn't run any better and sometimes not as good as the Fox engines did. There were a few converts over to Fox engines after seeing mine run too.

When I was really into pattern flying I had three to four pattern planes setup. a couple for practicing and a couple for the contests. A typical weekend might have me burn through a gallon to two gallons of fuel practicing. The Fox engines just didn't wear out like some other engines did. They would just keep on running and getting better and more better over time. Plus if I really needed to, I could easily get parts to repair them too. Most of the foreign engines were difficult to get and parts were very hard to come by too.




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RE: please submit your comments and pictures on your fa... - 1/19/2013 4:08 PM   
ronwc



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quote:

ORIGINAL: ronwc

My Fox twin 60 -



By the way, I am looking for mufflers for this engine - someone help me out -


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RE: please submit your comments and pictures on your fa... - 1/19/2013 4:14 PM   
MJD



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Status: offline 		If I was building a classic pattern design and didn;t care about displacement but only the physical size of the engine, I'd go with a Jett .90LX FIRE, it will spin the bejeebers out of a classic pattern prop size like 11x7.5 - 11x8, as in 15k plus. You can pipe it or run the Jett tuned muffler. Premium price, but a premium engine. You can add in flight mixture control with a Perry IMC ($26.95) and small servo (cheap).

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RE: please submit your comments and pictures on your fa... - 1/20/2013 2:19 AM   
earlwb


 

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Status: online 		Ronwc,
Well the standard Fox .60 up and down angled mufflers work fine. The muffler that comes with the engine is angled down somewhat. Then they sell a second type that is angled up slightly. Thus you can use the two as a left and right muffler on the twin 1.20 engines.  Fox used to make the Fox Quiet Mufflers in both a up and down angled version too. But they are harder to come by. Usually you have to watch the auction sites and wait for someone to want to sell one then.

Next is the Fox exhaust is the same as the Rossi .60 engines too. But I forget if it is the old or new Rossi's, you'll need to measure and double check that.

Now one can also make a bridge adapter which is one or two pieces of aluminum drilled to match the engine and muffler and bolted together as needed. Then you can adapt most any muffler you like to the engine.

Here is one of my Fox twins sporting a pair of Fox Quiet Mufflers on it.




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RE: please submit your comments and pictures on your fa... - 1/20/2013 3:24 AM   
jeffie8696



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Status: offline 		Earl!!! make video, I want to hear it.


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RE: please submit your comments and pictures on your fa... - 1/20/2013 1:58 PM   
earlwb


 

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I had made this video of one of my Fox 1.20 engines running a while back. I forget now what the video was for at the time. it might have been demonstrating how easy the engine was to start or something.





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