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-   -   Exhuast flappers......... (https://www.offshoreonly.com/forums/general-q/213919-exhuast-flappers.html)

cloudmaster_321 07-29-2009 01:16 PM

Exhuast flappers.........
 
I have put some of the gatlin mufflers on my 25 eagle eliminator. I was going to run the rubber flaps that go on the end of the tips to keep the water from going back in with a wave or whatever. They look ugly as heck back there. So i got the internal tip flappers put in between the tail pipe and tip. Will those internal flappers be sufficient, or do i need the end flaps as well?

kennyo 07-29-2009 03:11 PM

Should be ok. Make sure they don't fall out.

cloudmaster_321 07-30-2009 10:27 AM

Any other opinions on this????

Racerngr1 07-30-2009 10:32 AM

I run both. You may think it looks lame now but you will be one pissed off man when you have to re-build your engine because of reversion. I would strongly recommend using both styles. IMO they really don't look that bad.

Griff 07-30-2009 11:42 AM

Internal by themselves will be fine.

NEVERSATISFIED 08-02-2009 07:12 PM

I need to replace my internal flappers any idea's on where to get them?
Thanks Steve

jfm 08-02-2009 07:29 PM

http://www.keitheickert.com or CP performance is where I get mine

Kidnova 08-02-2009 09:51 PM

"I was going to run the rubber flaps that go on the end of the tips to keep the water from going back in with a wave or whatever. They look ugly as heck back there."

What's ugly is engine damage from water ingestion.

Your cam and type of exhaust system will have allot to do with whether or not you need external flappers.

Racerngr1 08-02-2009 10:50 PM

I'm kind of suprised anybody wouldn't just install them as extra protection for $20.00 to a $20,000+ engine. I even go as far as surfing the wake as I'm comming off of plane so I don't have that big surge of water hit my flappers. Better safe then sorry.

Kidnova 08-03-2009 07:21 AM


Originally Posted by Racerngr1 (Post 2923512)
I'm kind of suprised anybody wouldn't just install them as extra protection for $20.00 to a $20,000+ engine. I even go as far as surfing the wake as I'm comming off of plane so I don't have that big surge of water hit my flappers. Better safe then sorry.

I "surf" too. Coming off plane I can hear the gurgling sound when the water starts to cover the exhaust. I always give'r just a little throttle to blow the water back, then level out.

Rebel_Heart 08-04-2009 12:03 AM

Internals won't last as long, so I went with the externals just to be safe.

CPPerformance 08-04-2009 01:53 PM


Originally Posted by cloudmaster_321 (Post 2920775)
I have put some of the gatlin mufflers on my 25 eagle eliminator. I was going to run the rubber flaps that go on the end of the tips to keep the water from going back in with a wave or whatever. They look ugly as heck back there. So i got the internal tip flappers put in between the tail pipe and tip. Will those internal flappers be sufficient, or do i need the end flaps as well?

Here's an idea for your alternative to the ugly rubber flaps. These are 316L stainless steel clamp on flaps.

http://www.cpperformance.com/detail.aspx?ID=7631

steveh1209 08-04-2009 03:51 PM

I've just installed the new style from Hardin Marine. Rubber flapper on the inside. They do have a tic tac toe grid in them for the rubber to push against.

I've noticed the rubber stays bent out a bit, but as soon as water pushes it back it stays there. So I come off plane and dab the throttle to avoid that first rush of water.

I also noticed an ever slight change in exhaust tone. Hardin claims the rubber is heat resistant or so. I'll see how well they hold up. I love that there is no rattle anymore. That will drive you crazy.


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