EXHAUST?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=13158
Printed Date: November-17-2024 at 1:35pm
Topic: EXHAUST?
Posted By: k9spd403
Subject: EXHAUST?
Date Posted: March-28-2009 at 9:47pm
Hi guys and gals not sure where this post needs to go, I have a 89 nautique. It has the 2 into one exhaust. As long as I can remember ive always wanted a nautique I love the exhaust sound of them mastercrafts, tige etc. I guess I got caught up in the moment of actually driving mine when i was running it in the water before i bought it i never even noticed that it only had 1 exhaust port. bla bla bla anyways i didnt pay attention to the sound. I WANT A LOUDER exhaust I wanna be heard.  However im not real savy on these boats just yet ive always owned inboard/outboards. So any ideas how i can get more sound out of the exhaust? Any help will be greatly appreciated.
Thanks 
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Replies:
Posted By: 8122pbrainard
Date Posted: March-28-2009 at 10:31pm
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Kip,
Welcome to the site. You will find the answers here!! Seems our search feature is down so I can't find the thread for you and provide a link. Do a search for "got pipes". It's by one of our members TRBeng. If you have been to other sites such as PN then you may have seen his valuable contributions on other sites as well as here. Tim did a dual exhaust and explained the procedure as well provide pictures in his thread. Check it out. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 86BFN
Date Posted: March-29-2009 at 12:24pm
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Welcome. Hear's what ya want to do.
http://www.correctcraftfan.com/forum/forum_posts.asp?TID=6888&KW=pipes&PN=0&TPN=1 - Got Pipes? This should do it, Steve ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: SNobsessed
Date Posted: March-29-2009 at 12:52pm
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Has anyone ever taken the baffles out of the invertaflow muffler? Or just installed a Y in it's place? ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: eric lavine
Date Posted: March-29-2009 at 1:09pm
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Steve, you need to snap a pic of that hydro exhaust with the crossover pipe, I think the pipe is beneficial if you are going to modify your exhasut, its one of those they wouldnt of spent the extra money at the factory unless there was some type of performance gain. BTW, hydro's are the only ones that ive seen that do that, unless it has somethiong to do with that bowtie in there lol ------------- "the things you own will start to own you" |
Posted By: 86BFN
Date Posted: March-29-2009 at 1:19pm
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Eric, We'll do. I hope to be getting the boat out this week. I'll be giving you a call this week to discuss some other issues.
Steve ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: eric lavine
Date Posted: March-29-2009 at 1:27pm
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OK, im still trying to line up a boat for the summer, you do have an extra one...
you gotta sonny and Cher combo, BBC and SBC ------------- "the things you own will start to own you" |
Posted By: 86BFN
Date Posted: March-29-2009 at 2:29pm
Sonny and Cher combo   ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: Kristof
Date Posted: March-29-2009 at 3:25pm
Would be very interested in this Y configuration, cause I don't want to drill holes in the transom for the dual pipes (even tho they look very cool on Tims'boat). ------------- - Gun control means: using BOTH hands! - Money doesn't make one happy, but when it rains cats and dogs, it's still better to cry in a Porsche than on a bicycle... |
SNobsessed wrote:Posted By: Luchog
Date Posted: March-29-2009 at 11:39pm
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My case is exactly the opposite, I'm building this 22 feet cabin boat with a 351 Commander and I want it to be as quiet as it can, any ideas? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=2095" rel="nofollow - 1980 Ski Nautique Commander 351W |
Posted By: SNobsessed
Date Posted: March-29-2009 at 11:42pm
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You can buy K9's invertaflow. He may not need it much longer! ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: k9spd403
Date Posted: March-30-2009 at 1:09pm
Wow looks awsome and i bet it sounds that way too, but im afraid thats WAAAAAAY outside my abilities to do.
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Posted By: critter
Date Posted: March-30-2009 at 1:20pm
What abilities... Pencil, Tape Measure, Drill and Duct Tape .. and you are there. Tim did a great job with that modification. ------------- 1980 Ski Nautique 1966 Barracuda |
Posted By: 86BFN
Date Posted: March-30-2009 at 1:20pm
Eric here's a few shots of the crossover on the Dyne you asked about. 
BTW have you ever encountered a nylon shaft seal such as this. I'm thinking of installing an OJ dripless while I'm replaceing the strut bushing.  ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: Luchog
Date Posted: March-30-2009 at 1:41pm
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what's the deal with that H??? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=2095" rel="nofollow - 1980 Ski Nautique Commander 351W |
Posted By: TRBenj
Date Posted: March-30-2009 at 1:46pm
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Thanks for the comments on the exhaust, guys. Definitely not a project for the faint of heart, but it gets the job done in the looks department. Doesnt sound bad either- though it is a bit loud for a ski boat.
86BFN, tell me about that crossover pipe (H-pipe). Was that installed on your Dyne from the factory? If you did it yourself, Im curious if it made a performance improvement. I am planning to add one to my '90 this year, as well as a set of small mufflers so my ears dont ring after I ski. ------------- |
Posted By: critter
Date Posted: March-30-2009 at 2:14pm
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What are these things you refer to as "mufflers" ??
Please type loudly.. ------------- 1980 Ski Nautique 1966 Barracuda |
Posted By: Hollywood
Date Posted: March-30-2009 at 2:18pm
k9spd403, this was posted on PlanetNautique just recently
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Posted By: 86BFN
Date Posted: March-30-2009 at 2:53pm
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TRBenj, Yes it came from the factory this way. I would think there is a slight performance advantage to the crossover, as to how much, your guess is as good as mine. The mufflers are fiberglass and have gotten a bit louder over the years. it really does have a nice sound to it. Last spring when my wife went for her first ski of the year she asked if I have modified the exaust. LOL
Steve ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: k9spd403
Date Posted: March-30-2009 at 5:26pm
OH im not sure how to change my avatar yet but heres a pic of my baby girl
 ------------- |
Posted By: nates78ski
Date Posted: March-30-2009 at 5:48pm
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You sure that's an '89?
I was pretty sure the sloped transom didn't come around until '90 I'm probably wrong though & someone will surely be quick to correct me. Nate ------------- Nathan http://correctcraftfan.com/diaries/details.asp?ID=1463&sort=&pagenum=3&yrstart=1978&yrend=1978" rel="nofollow - My '78 Ski Nautique <a href="http://photobucket.com/Nates78ski" rel="nofoll |
Posted By: TRBenj
Date Posted: March-30-2009 at 5:52pm
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Nate, thats a Sport Nautique. It didnt officially make the brochure until '90, but there are a handful of '89's around. ------------- |
Posted By: 86BFN
Date Posted: March-30-2009 at 5:58pm
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TRBenj, I see ya changed your avatar to show off those beautiful pipes!
That is one sweet setup. ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: k9spd403
Date Posted: March-30-2009 at 6:37pm
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WOW I ACTUALLY HAVE SOMETHING THAT MIGHT BE KINDA RARE!!!!!
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Posted By: nates78ski
Date Posted: March-30-2009 at 7:35pm
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I thought i'd seen before that the Sport was introduced in '89, but i went & checked in the reference & couldn't find one. I just initially saw the sloped transom & the numbers '89' & thought differently.
Nice boat! Nate ------------- Nathan http://correctcraftfan.com/diaries/details.asp?ID=1463&sort=&pagenum=3&yrstart=1978&yrend=1978" rel="nofollow - My '78 Ski Nautique <a href="http://photobucket.com/Nates78ski" rel="nofoll |
Posted By: gun-driver
Date Posted: March-31-2009 at 1:42am
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Hey Tim,
I want to put duel's on my '95. If you could take a pic of the rudder arm mod for me I would appreciate it immensely. Thanks |
Posted By: 86BFN
Date Posted: March-31-2009 at 11:10am
Paul, it's all right here. ------------- 👣 Steve http://www.correctcraftfan.com/diaries/details.asp?ID=4057&sort=&pagenum=1&yrstart=1986&yrend=1986" rel="nofollow - 86 Barefoot Nautique 89 Martinique Former Owner: 93 Hydrodyne 350 MAG |
Posted By: k9spd403
Date Posted: March-31-2009 at 1:46pm
| Well i got down with a flashlight yesterday afternoon, and began looking. When i looked up in the exhaust tubefrom the rear of the boat, it looks like there is like maybe a baffle layer inside the tube. It looks like there are maybe hundreds of 1/2 to 1 inch bubles all in the pipe. Is this some type of sound dampner? |
Posted By: TRBenj
Date Posted: March-31-2009 at 2:11pm
Thesea rea the best pictures Ive seen of the inside of the invertaflow:
 ------------- |
Posted By: k9spd403
Date Posted: March-31-2009 at 4:38pm
| no its not that part, its the rubber pipe that goes out of the rear of the boat that has the flap attached |
Posted By: 8122pbrainard
Date Posted: March-31-2009 at 4:51pm
Sounds like the exhaust hose is delaminating. Has the engine ever been run hot? Overheated without water? Probably time for new hose. The hose should be smooth inside. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: k9spd403
Date Posted: March-31-2009 at 7:03pm
| not that im aware of, but ive only owned it about a year. but she runs STRONG and starts right up everytime. maybe i'll just go with a y pipe into a large single steel exhaust |
Posted By: Hollywood
Date Posted: March-31-2009 at 7:34pm
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Maybe he's looking at a muffler, and it's just like it is supposed to be? Perhaps someone put another one inline.
Buffalo, catch that edit?  ------------- |
Posted By: gun-driver
Date Posted: April-01-2009 at 7:51pm
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86BFN,
I've looked at that link several times but there's no picture of the rudder arm and steering box mod. Unless I'm brain dead and missed it which could be true. |
Posted By: Hollywood
Date Posted: April-01-2009 at 8:16pm
Modifying the steering system is a major safety concern, which I can understand not wanting to publish on the web. I doubt Tim would want his boat compared to the blacked out Squam inboards 2001 sacked out to the fuel tank vent.  The boat has been to 3 reunions post exhaust, maybe he'll let you stick your head down there for a peak next time.------------- |
Posted By: k9spd403
Date Posted: April-02-2009 at 6:06pm
| anyone know how big the exhaust port is at the rear of the transom? is it 4 or 5 inch? I have a buddy that does exhaust work, im thinking of taking and running dual pipes off the risers all the way back and then going into a larger "y" single out. it would have to sound better but dont know if it would hurt performance. |