Loud

A discussion on ways to reduce it.
brazosriverrats
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Loud

Postby brazosriverrats » Tue Apr 15, 2014 3:31 pm

I have a Pathmaker with a 454, 2 to 1, 3 blade sensenich prop. What can I do to quiten it down?

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farmboy
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Re: Loud

Postby farmboy » Tue Apr 15, 2014 3:49 pm

brazosriverrats wrote:I have a Pathmaker with a 454, 2 to 1, 3 blade sensenich prop. What can I do to quiten it down?

What series prop is it?
14ft JB Hull,Lycoming GSO480 w/water-meth injection,Sensenich 3-blade "R",ButtRaxx seats,B&S Trailer.

Member of Glades Airboat & Buggy Association / Kissimmee River Valley Sportsman Association

brazosriverrats
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Re: Loud

Postby brazosriverrats » Tue Apr 15, 2014 8:20 pm

H series.

gso480jr
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Re: Loud

Postby gso480jr » Tue Apr 15, 2014 8:22 pm

Use the Q, it will whistle at you. :lol:

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akblackdawg
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Re: Loud

Postby akblackdawg » Tue Apr 15, 2014 8:36 pm

Which sensinich prop do you have? Bud
:alaska: If you ain't living on the edge, you're taking up to much space.

15x8 Alumatech hull, with enclosed cab, aluminum cage, LS 3, 6.2 aluminum block ffi, 2.7 Balistic Box, sensinich superwide 3 blade. Built for year around riding in Alaska

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farmboy
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Re: Loud

Postby farmboy » Tue Apr 15, 2014 9:04 pm

brazosriverrats wrote:H series.

The H series are loud props... It seems like with the gearbox you would be swinging a reduction prop...???
14ft JB Hull,Lycoming GSO480 w/water-meth injection,Sensenich 3-blade "R",ButtRaxx seats,B&S Trailer.

Member of Glades Airboat & Buggy Association / Kissimmee River Valley Sportsman Association

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skinny99
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Re: Loud

Postby skinny99 » Tue Apr 15, 2014 10:29 pm

More ratio and more prop. Slow tip speed and lots of pitch is the key to quieting the that part of the equation. 2.68 and some NGR's set at about 5200 WOT would be quiet. Then some large automotive mufflers, non flowmaster style. You want something that is actually designed to really quiet the engine down. Magnaflow makes some that are fairly well built.
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