Has anyone tried these ?

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08-31-2018 | 12:58 PM

#21

Trash

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Quote:

Originally Posted by Bulitz

There are 2 types stock and competition what did you guys buy ?

I use the 'competetion' style. The inner diameter is slightly bigger. 5 ring unit. I measured a 6 dB sound decrease and no rpm (power) loss at WOT compared to straight wet exhasut. Other slip in silencers reduced the sound the same amount but choked the motor 300-500 rpm at WOT. This was with a stroker small block and 4" thu hull exhaust.

08-31-2018 | 01:35 PM

#22

Baja Rooster

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From: SF Bay Area

What about turn down tips? Super quiet at idle but keeps water from sloshing into the pipes when at rest.

08-31-2018 | 01:49 PM

#23

Bulitz

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Quote:

Originally Posted by Baja Rooster

What about turn down tips? Super quiet at idle but keeps water from sloshing into the pipes when at rest.

revertion on turn down pipes ?

09-01-2018 | 05:17 PM

#24

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Quote:

Originally Posted by Bulitz

revertion on turn down pipes ?

Your best prevention against water INTRUSION, not reversion, at rest is a good set of internal and external flappers. Water always seeks level so whether you have thru hull or thru prop Y pipe exhaust.

09-01-2018 | 05:46 PM

#25

Bulitz

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Yes even me think that this is the best way of INTRUSION but no one makes internal flappers for dry exhaust

09-01-2018 | 06:20 PM

#26

Baja Rooster

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I think installing the rings 2” up in the pipes upstream of the water dumping in may greatly help with reversion and you get to keep your rubber flaps too. Are the stainless flaps noisy?

09-01-2018 | 07:10 PM

#27

RBeyer

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From: Antioch, IL

Quote:

Originally Posted by Bulitz

The problem came up because I did dry exhaust and water exits last inch of the tail pipes . Now SS marine suggest it that I go full dry with water exit from another outlet and never meet exhaust .
Since the tailpipes are about 2-3 inch from the waterline I was thinking adding rubber flappers and the back plus these inserts so that water coming in will hit the rings before going all the way up to the raisers.

What you think ? I think it helps slowing waves from entering aggressively in the tips

Again I run the Competition version 5 ring 4.5" X 5.5" I also have rubber flappers on 525SC's that are about 2" above the water line. I have no reversion issue and they made it much quieter with no power loss. I have dry exhaust that meets water about 1/4" from the end.

09-01-2018 | 10:50 PM

#28

gofastboater

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From: Baltimore, Maryland

Hard to get a good comparison of sound between the Baja and Scarab. Baja has an open swim platform and the Scarab has a solid platform. Solid one holds the sound down to the water and then under the dock.