Anyone seen a pipe like this?
#2
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From: CamborneCornwall, UNITED KINGDOM
looks like a pretty normal full pipe, with a very! long manifold and what are those on the pipe? cooling tubes?! with that big bracket at the back and those tubes i'd say it was for a power boat. tho im not sure why you would cool the pipe, maybe to protect the boat, but... are those tubes also at the engine mount? maybe thats a smoke system of some type for a plane, and the tubes are the pre heat.
i think i'll stick with power boat tho
i think i'll stick with power boat tho
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From: Kelowna, BC, CANADA
They are indeed FOX tuned pipes, and were first produced in the '70's. Worked well to produce many extra rpm's on the Fox engines I used many years ago.
#5

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You are correct, that is a Fox pipe. I had the first tuned pipe in my club and it was one of those. Duke Fox made his own for a while back in the late 70's-early 80's. They were machined from an aluminum block. The "ray-gun" looking rings were to keep the sides from vibrating and humming with the resonance pulses. Before he put those on the pipe, it was very loud. They did work well on a Fox .45.
#6

Isn't that interesting... I happen to have an old Fox .45 ringed engine. It still has the old style unreliable carb on it. Runs like a bat out of heck at full throttle! (Of course the fact that I made my own muffler has somethin' to do with it's noise level and ability to scream!)
I don't use it much as it sits on top of a Dumas Swamp Buggy.
Very interesting indeed.
I don't use it much as it sits on top of a Dumas Swamp Buggy.
Very interesting indeed.
#7

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Actually, the old style carbs worked well if you knew how to adjust them. They were 2 jet carbs, which is completely different from any carb we have today. At full throttle, both jets were used. This means the low end needle really affects the top end.
You adjusted them backwards from normal. You set the low end first, then went back and set the top. Normally, we get the top end set, then idle down and set the low end mixture. Doesn't work on the Fox. Every time you touch the idle needle, you must reset the top end. Those people who like to tweak the needles all the time never could get them running.
You adjusted them backwards from normal. You set the low end first, then went back and set the top. Normally, we get the top end set, then idle down and set the low end mixture. Doesn't work on the Fox. Every time you touch the idle needle, you must reset the top end. Those people who like to tweak the needles all the time never could get them running.
#8

Even more interesting yet! Thanks ED.
The carb needs replaced. The previous owner had tried to add it to the back porch supports. I disassembled the carb the the airbleed hole didn't quite match up with the hole/groove on the barrel 'flap'. A little ingenuity and I got her running fine.
If an engine is being stubborn-as this one was- I work on both ends of the throttle range at the same time. I would have been however, much for efficient had I known then what I know now!
Nice engine regardless of the carb problem! I'm thinking of selling the combo with two S148 servos.
Jeff
The carb needs replaced. The previous owner had tried to add it to the back porch supports. I disassembled the carb the the airbleed hole didn't quite match up with the hole/groove on the barrel 'flap'. A little ingenuity and I got her running fine.
If an engine is being stubborn-as this one was- I work on both ends of the throttle range at the same time. I would have been however, much for efficient had I known then what I know now!
Nice engine regardless of the carb problem! I'm thinking of selling the combo with two S148 servos.
Jeff



