Muffler for unfamilier motor. - RCCanada - Canada Radio Controlled Hobby Forum
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Old 06-09-2009, 08:31 PM   #1
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I am: Gordon A
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Muffler for unfamilier motor.

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I have a 61 twq stroke motor with gold top and HP marked on the side.
Also stamped made in Austria.-looks like either 34 mm or 1&5/16 in.
between muffler mounting holes. Would someone have a muffler to fit
either a side mount or inverted?
Also I would like to know if this would be a suitable engine to pull a
Great Plains 40 size J3 cub on floats?
Any info would be greatly appreciated. Thanks. --Gord.32.
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Old 06-09-2009, 09:23 PM   #2
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I am: Dave
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Re: Muffler for unfamilier motor.


It was one of the more powerful runners back in the 80's , know as the HP "GoldCup"
series. I think it was designed as more of a pattern type engine. Not sure if I would subject it to floatflying since it is almost a collector item.
You could contact Jim Bisson about Bisson mufflers or see some of their products on
the towerhobbies website also

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Old 06-13-2009, 06:56 PM   #3
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Re: Muffler for unfamilier motor.

A J3 with the proper power plant is a nice flying A/C, when you overpower it the A/C becomes a hand full. Stick to the proper size power plant. Kip
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Old 06-14-2009, 06:11 PM   #4
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Re: Muffler for unfamilier motor.

Thanks for the reply. The kit box says 40---6o motor required and i thought
the floats would be a big drag. Perhaps a 51 would get it off the water?
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