CVX 18 THRU HULL EXHAUST

[carlsoncvx18]

Another one was done on CVX18 floor rebuild thread.

[california special]

ill post some pics tonight. it looks like im gona have to cut both s pipes and mabey some off my tips.(i def dont want to do that)

[fireman24mn]

i had a s pipe made at and Exhaust shop for mine just brought the boat to them and the made them right on the spot  fit great and looked good

[fireman24mn]

tips out the back just below the water line so it is quiet when idling

[Hyperacme]

Jeff & Grinder's thru hull thread's ...
http://forum.cgoamn.com/index.php?topic=3737.0

Shawn ...
You had some stuff about your thru hull, but can't remember where it's posted ...

[california special]

some pics

[california special]

how much should i cut off the s pipes?

[california special]

measure twice cut twice

[carlsoncvx18]

The left side fits and looks like it is tight against the tramsom?  And the right side will not fit? correct?  If that is the case I would remove about 1" from the right side pipe and see if it fits.  This id the offset of your cyls from one side to other.

[california special]

so cut an inch off the the side where im tight? is that what youve done in the past? i need to know how much to cut off and how to measure

[Grinder]

Sorry for the late reply i've been at home for a week and a half taking care of my wife and our new daughter.

Yes i had to cut both s pipes. i cut 1" off of one and i think almost 2" off the other one.


Gregg,

I think that was posted in Craig's (Shrom CVX-18) thread, but i cant find it.

[Grinder]

Here it is on page 2 of this thread

Craig Jeff,

Did you have to modify your S pipes? Were your pipes new? I have to cut about an 1 1/2 inches off the port side to make it fit. When I looked at the pictures of yours they looked like maybe they had already been cut? But I got the tips on, the block off plate on, the motor bolted back in, and everything sealed up.
The only things left are make the pipes fit, hook up wiring, hook up gas line, and fill with oil (this is the easiest oil change I have ever done on a boat!). The transom is not in the best shape but its not terible maybe get to that in the fall.

[Burnin Daylight]

Congratulations on the new arrival!!

[california special]

not sure why but my but my tips came out below the water line in the exact spot as Fireman24s. i ordered the standard s pipe from cp performance. i would have liked to have gotten it a bit higher where  Grinders are. i dunno if they sent me the wrong pipes or what? but its too late now.

[Grinder]

Congratulations on the new arrival!!

Thanks Barb.

not sure why but my but my tips came out below the water line in the exact spot as Fireman24s. i ordered the standard s pipe from cp performance. i would have liked to have gotten it a bit higher where  Grinders are. i dunno if they sent me the wrong pipes or what? but its too late now.

My S pipes are standard, i think. My tips are about half to 3/4 covered when the boat is in the water, it's better when the DNR are around. 

[kert0307]

What is the DNR rule over there? I just checked the IOWA and they do have a 90 Db max, but I haven't been bothered yet.

[fireman24mn]

I like mine below the water because then I can be quiet if need be. The DNR and Sheriff are usually watching the no wake zones and that is where mine will be quite and hopefully not draw to much attention. Even when on plain and running I don't think it is all that loud that water in the exhaust muffles it some. Just taking off is where it is the loudest and really draws attention.

[Grinder]

What is the DNR rule over there? I just checked the IOWA and they do have a 90 Db max, but I haven't been bothered yet.

I'm not sure.  I live in ND, but I boat in MN.