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Internal flapper exhaust tips

Old 02-13-2009, 12:09 PM
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Originally Posted by silverstang84
quick question. I have internal and external flappers. do i need both? would it be ok to take out the internals and just leave the externals?????
No. If anything, leave the internals. The externals are pretty worthless.

Anybody getting new exhaust tips, make sure to get them with SS internal flappers. The Corsa ones have an SS flapper with Silicone on the edge and use a counterweight to keep them closed.
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Old 02-13-2009, 12:18 PM
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Originally Posted by JustMercMe
How about Rex Marine? Anybody heard of any problems with them?

http://www.rexmar.com/page230.html


Rex tips are good quality. If you have a problem with them you can contact the owner Mike and he'll take care of the problems. Corsa is good too.
Eddie marine would make you a custom application with your specs requirements.
The key is to talk with vendors first before ordering online.
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Old 02-13-2009, 12:22 PM
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Default flappers

I would say the external flappers are by far the most reliable . I have replaced many internal . they are alot harder to replace. external are 2 minute job .
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Old 02-13-2009, 12:25 PM
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Originally Posted by silverstang84
quick question. I have internal and external flappers. do i need both? would it be ok to take out the internals and just leave the externals?????


The internal flappers are reliable even if the rubber edge burns up , just going to be clattering. The Salisbury external flaps are more positive to stop surge because it closes the tip end completely when needed.Only problem is if you don't inspect them every time you're going out it may break off during a run without you knowing it. If you have a mild cam with minimal overlap you won't need ungainly external rubber flaps . You have to make sure where your waterline is in relation to the exhaust riser. Some boats with heavy transom would be a concern here.


Just a little info on Excalibur


Last edited by spectras only; 02-13-2009 at 12:32 PM.
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Old 02-13-2009, 02:43 PM
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spectras, thanks for the info. But my excalibur is alot different from that model. mine is a 1990 and i never really see many around. and that boat is a 27 where mine is a 21.

here is mine


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Old 02-13-2009, 03:46 PM
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Here's a 21 Excel , similar bottom different deck and added swimstep.






There's a local guy here with those canopies similar to yours, he claims his is a 23 footer.

Last edited by spectras only; 02-13-2009 at 03:51 PM.
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Old 02-13-2009, 04:41 PM
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wow. that is really close to mine. No body seems to know much about my boat. I've seen others but they are all the same year. only 90. weird. maybe they only made them for a year? looks like they just put the twin capsule deck on the 21 Excel hull.


I have a molded swimstep as well

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Old 02-16-2009, 12:47 PM
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Originally Posted by spectras only
Here's a 21 Excel , similar bottom different deck and added swimstep.






There's a local guy here with those canopies similar to yours, he claims his is a 23 footer.
Wonder where you could get one of those nifty "Miami Vice" air spoilers from?

Got a bud that just bought an '89 Excel 21....His does'nt have the spoiler and the plexi windshied.
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Old 02-16-2009, 12:55 PM
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I don't run flappers at all... is it a straight shot into the engine on your boat? not all boats need them. How high off the water is your exhaust?
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Old 07-08-2009, 03:59 PM
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Originally Posted by spectras only

The internal flappers are reliable even if the rubber edge burns up , just going to be clattering. The Salisbury external flaps are more positive to stop surge because it closes the tip end completely when needed.Only problem is if you don't inspect them every time you're going out it may break off during a run without you knowing it. If you have a mild cam with minimal overlap you won't need ungainly external rubber flaps . You have to make sure where your waterline is in relation to the exhaust riser. Some boats with heavy transom would be a concern here.


Just a little info on Excalibur

Wow just seen this thread and I have that boat..
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