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Originally Posted by silverstang84
(Post 2799490)
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?????
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. |
Originally Posted by JustMercMe
(Post 2799386)
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. |
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 . :ernaehrung004:
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Originally Posted by silverstang84
(Post 2799490)
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 http://www3.telus.net/spectrasonly/Excalibur%2027.jpg |
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 http://i284.photobucket.com/albums/l...tures006-1.jpg http://i284.photobucket.com/albums/l...ictures012.jpg |
Here's a 21 Excel , similar bottom different deck and added swimstep.
http://www3.telus.net/spectrasonly/scarab%2021%20XL.jpg There's a local guy here with those canopies similar to yours, he claims his is a 23 footer. |
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 http://i284.photobucket.com/albums/l...ictures011.jpg |
Originally Posted by spectras only
(Post 2799678)
Here's a 21 Excel , similar bottom different deck and added swimstep.
http://www3.telus.net/spectrasonly/scarab%2021%20XL.jpg There's a local guy here with those canopies similar to yours, he claims his is a 23 footer. Got a bud that just bought an '89 Excel 21....His does'nt have the spoiler and the plexi windshied. |
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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Originally Posted by spectras only
(Post 2799569)
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 http://www3.telus.net/spectrasonly/Excalibur%2027.jpg http://i126.photobucket.com/albums/p.../boatjuly4.jpg |
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