Dry exhaust question

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03-28-2021 | 10:52 AM

#21

benjen

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Joined: Apr 2006

Posts: 556

Likes: 22

From: Sharon,MA

Quote:

Originally Posted by Wildman_grafix

I run dry to the very tip than out.

The difference over traditional wet is its at the very end and has to come way back to do any damage.

For most that is enough, BTW my chitty e-top headers did finally start leaking,,,,,,, 21 years after new.
Half of that in salt water.

21 years. You are a lucky man

03-28-2021 | 11:48 AM

#22

Eddienel

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Joined: Mar 2020

Posts: 920

Likes: 599

From: Central Louisiana

Quote:

Originally Posted by phragle

Mine are dry to the tip, mix in at the last inch or so. Its not to bad in the cockpit, though I really didnt realize how loud it was until my brother in law videoed a fly by I did

https://www.youtube.com/watch?v=1s52ZXhZS1g

Damn dude you were hauling arse... Boat sounded killer!!!

03-28-2021 | 12:00 PM

#23

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Joined: Nov 2004

Posts: 14,108

Likes: 3,694

From: On A Dirt Floor

Quote:

Originally Posted by benjen

I'm sorry to add a possible stupid question here. Some of the above replies say the tail pipes are dry until the very end. How is that possible? isn't it wet until the very end, than exiting the water overboard at a different location away from the tail pipes?

Don’t confuse dry or wet with double walled water cooled.

Dry exhausts in i/o boats are still water cooled, but don’t have water enter the exhaust stream.

Wet exhausts have water enter the exhaust stream. In i/o boats they are also double walked water cooled.

03-28-2021 | 12:38 PM

#24

Craney

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Joined: Oct 2004

Posts: 2,670

Likes: 651

From: Clayton NJ

I have Stainless Marine dry exhaust ,my water dumps out on the bottom of my pipes from a hole the size of a nic

kel

03-28-2021 | 01:01 PM

#25

plavutka

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Joined: Apr 2016

Posts: 210

Likes: 50

Question for LS 376/525 with cam duration 226 deg intake, 236 deg exhaust, 110 LSA, "Kodiak marine" alu risers we have available two solutions:

a.) extended pipe for dry exhaust by 26 inches, 5 inches mixing space and then gatlin mufflers. Exhaust is at an angle of 15 degrees down.
b.) Dry exhaust to the end.

Please for opinions.

Last edited by plavutka; 03-28-2021 at 01:03 PM.

04-05-2021 | 09:12 PM

#26

RBeyer

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Joined: Nov 2003

Posts: 825

Likes: 30

From: Antioch, IL

Quote:

Originally Posted by Bostonirish

Dry exhaust is insanely loud. Not even sure a down turn at idle Would help

I run GGB insertsi n my 4.5" dry pipes and it does make them tolerable.

04-06-2021 | 05:27 AM

#27

TomR

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Joined: Dec 2000

Posts: 1,340

Likes: 28

From: Harwich, MA

Quote:

Originally Posted by getrdunn

Did you see any loss in power or speed at all. I purchased some 4 1/2” hpi’ clamp ons and would like to do a back to back comparison. If it tames it down a bit with little to no loss in power I’ll be pleased or at least many of the lake owners will.

Certainly didn't notice any loss but did quiet them down.

04-06-2021 | 05:55 AM

#28

Quinlan

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Joined: Jul 2003

Posts: 4,284

Likes: 777

From: Tulsa, GLOC

I have some clamp on Gibson and I used them once on LOTO- Did quiet them down a lot.
Lost both drives that weekend and haven't used them again

04-06-2021 | 11:46 AM

#29

ThisIsLivin

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Joined: Oct 2010

Posts: 1,621

Likes: 402

From: Cheboygan, MI

I am of the opinion that if you can hear the exhaust noise in the boat you aren't going fast enough. Once I hit 70 all I hear is a hum and deafening wind noise. I have a single with Lightning wet headers and people can still hear me after I've disappeared over the horizon.