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OS 55HZ With PROP and tuned pipe

Old 06-22-2024, 12:37 AM
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Default OS 55HZ With PROP and tuned pipe

i get in new/old project. at the last time i used mvvs 49 with macs tuned muffler and 10x7 ousher, this time i want to use the best options i can get, so i thought about OS 55 hz with same macs tuned muffler and apc 10x8 prop.
does anyone has experience with this engine with prop setup and pipe and can share his/her experience with me?
i want to know the power impression, rpm, props, easy tunning with pipe and anything that can be relevant
thanks
Guy
Old 06-22-2024, 05:57 PM
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what is your Nitro% ?
can you post a pic of the muffler, or post it's part number?


the OS 55hz is a Heli engine, it will handle that setup, but you may want to use more pitch. and if you want your engine to run smoother and tune easer you may want to use an 11x8 or 9.

stay safe!
Old 06-23-2024, 08:09 AM
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What plane to use it in???
Old 06-23-2024, 08:55 AM
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thanks wasp, i am limited by diameter, 10 inch between rudders and max pich for pusher apc in 10 inch is 8
and after all heli eengines is for more revs so i think is better idea than the ax
jaka - the plane is Crusader II
Old 06-23-2024, 06:41 PM
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LOL that's a very cool plane!
how about the OS Hyper50 Heli engine. it's a great engine and it has the big Carb. cheaper too.
Old 06-24-2024, 08:30 AM
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nitro precentage will be 15 to 30, tuned pipe will be i think the 1240 of mac
Old 06-24-2024, 07:06 PM
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when I was flying Helis I used the Hyper50, 30% and used a Tuned Muffler. I setup the engines speed control for an engine speed of 17.000. I tried an English Genisis tuned muffler for a while and got an engine speed of 18,000.

so I would think that Mac pipe with 30% would get the Hyper50 to 18.000 even more.

here, search here, and post your quest. these guys will know more.
Extreme Speed Prop Planes - RCU Forums (rcuniverse.com)
Old 06-24-2024, 08:14 PM
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thanks, good idea.
new thread opened
"Need for Speed with OS 55HZ With PROP and tuned pipe"

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