Exhaust down tubes. Whos using them?
06-22-2006 | 08:37 AM
#11
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Joined: Sep 2005
Posts: 5,744
Likes: 139
From: Marco Island, FL; Waterloo, ON, CAN
Re: Exhaust down tubes. Whos using them?
Originally Posted by CMG
contact Bobthebuilder, he just put a set on his for a lake trip in NH and liked em
My top end speed was off about 3 MPH and I am not sure yet if this was a factor or not.
Funny story here. 8 o'clock Sunday morning we are putting the boat on the trailer for the trip home. Truck is spinning his wheels at the ramp so I put the drives in gear to help push the truck up the ramp. As we came up the ramp I,m still on the throttles and the tips came out of the water. Sounded like a bomb went off till I got her shut down.
After I had been so good all weekend trying not to piss anyone off. Gilford,NH got up early that morning! LOL
06-22-2006 | 08:40 AM
#12
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Joined: Jan 2003
Posts: 8,022
Likes: 1
From: Michigan
Re: Exhaust down tubes. Whos using them?
Originally Posted by Bobthebuilder
Just installed mine last week when we went to Lake Winnipesaukee. It is unbelievable the difference. With mine they can come off in 20 minutes if I'm in an area where noise is not an issue. Wish I had put them on long ago.
My top end speed was off about 3 MPH and I am not sure yet if this was a factor or not.
Funny story here. 8 o'clock Sunday morning we are putting the boat on the trailer for the trip home. Truck is spinning his wheels at the ramp so I put the drives in gear to help push the truck up the ramp. As we came up the ramp I,m still on the throttles and the tips came out of the water. Sounded like a bomb went off till I got her shut down. After I had been so good all weekend trying not to piss anyone off. Gilford,NH got up early that morning! LOL
My top end speed was off about 3 MPH and I am not sure yet if this was a factor or not.
Funny story here. 8 o'clock Sunday morning we are putting the boat on the trailer for the trip home. Truck is spinning his wheels at the ramp so I put the drives in gear to help push the truck up the ramp. As we came up the ramp I,m still on the throttles and the tips came out of the water. Sounded like a bomb went off till I got her shut down.
After I had been so good all weekend trying not to piss anyone off. Gilford,NH got up early that morning! LOL 
06-22-2006 | 08:44 AM
#14
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Joined: Jul 2005
Posts: 2,149
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From: Colts Neck,NJ
Re: Exhaust down tubes. Whos using them?
Originally Posted by LubeJobs42
I figure before I piss off all my new neihbors I better do something about my exhaust. I know some people are using an elbo on their tail pipes that put the exhaust underwater at idle and above water on plane. We contacted Gibson but they only make them for 4" and 4.5" tailpipes. Who makes them for 5"? Anyone using them? Do they work well?
Screw em buy them a for sale sign and tell em thier movin.
06-22-2006 | 10:41 AM
#16
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Joined: Jun 2001
Posts: 2,303
Likes: 109
From: McHenry, Illinois
Re: Exhaust down tubes. Whos using them?
There is no reversion. The tips need to be 4-6" underwater to work. There should be no reason to drill relief holes. Nobody makes 5" except CMI. Ateco a CMI distributor took care of me. In Wisconsin the DB limit is 86. We were just at a Poker Run in Oshkosh and the Sheriff did not even look at us we were so quiet. No way you can lose speed as there is zero restriction.
06-22-2006 | 11:30 AM
#18
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Joined: Jul 2003
Posts: 1,932
Likes: 12
From: ME and NH
Re: Exhaust down tubes. Whos using them?
Originally Posted by Bobthebuilder
Just installed mine last week when we went to Lake Winnipesaukee. It is unbelievable the difference. With mine they can come off in 20 minutes if I'm in an area where noise is not an issue. Wish I had put them on long ago.
My top end speed was off about 3 MPH and I am not sure yet if this was a factor or not.
Funny story here. 8 o'clock Sunday morning we are putting the boat on the trailer for the trip home. Truck is spinning his wheels at the ramp so I put the drives in gear to help push the truck up the ramp. As we came up the ramp I,m still on the throttles and the tips came out of the water. Sounded like a bomb went off till I got her shut down. After I had been so good all weekend trying not to piss anyone off. Gilford,NH got up early that morning! LOL
My top end speed was off about 3 MPH and I am not sure yet if this was a factor or not.
Funny story here. 8 o'clock Sunday morning we are putting the boat on the trailer for the trip home. Truck is spinning his wheels at the ramp so I put the drives in gear to help push the truck up the ramp. As we came up the ramp I,m still on the throttles and the tips came out of the water. Sounded like a bomb went off till I got her shut down.
After I had been so good all weekend trying not to piss anyone off. Gilford,NH got up early that morning! LOL
06-22-2006 | 12:59 PM
#19
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Joined: Jun 2001
Posts: 2,303
Likes: 109
From: McHenry, Illinois
Re: Exhaust down tubes. Whos using them?
Originally Posted by Boomer 880
Brad... are you running mufflers and down tubes, or just down tubes?
