Normal exhaust flow?
Road Warrior
Joined: Sep 2005
Posts: 1,942
Likes: 7
From: guntersville, al
RE: Normal exhaust flow?
the exhaust from the front cylinder creates a vacuum when passing the crossover. this pull most of the exhaust out the right side. easy solution is to cut about 5" from the crossover and plug each opening with Chevrolet freeze plugs. Your heat shield will hide the missing pipe. All for under $2.00. Being able to hear each cylinder more distinctively is awesome.
Extreme HDF Member
Joined: Nov 2006
Posts: 13,389
Likes: 26
From: Windham,Maine
RE: Normal exhaust flow?
When it comes to exhaust flow think of the gases as water, and how it flows through a pipe.Than look down at the Y pipe and how it is built.It should be clear then why more exhaust comes out the right side.The exhaust gasses, like water making a turn for the most part is running against the outside edge of the pipe as it is changing direction.True duals will give you equal flow out both sides.
Outstanding HDF Member
Joined: Dec 2006
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From:
RE: Normal exhaust flow?
ORIGINAL: Silverearl
But I like my true duals..
But I like my true duals..
Outstanding HDF Member
Joined: Oct 2006
Posts: 2,263
Likes: 36
From: Georgia Mountains
RE: Normal exhaust flow?
With the addition of my True Duals, there may have been a lossin low end, but I didn't notice it, and I had 14K plus on the bike when I switched. There is definite improved throttle response atRPM's over 2500. There appears to be a reduction in operating temperature indicated by the oil temp which is substantialat a minimum of 10 degrees. It is louder...with no change in the mufflers. Enough of a change that I am considering different mufflers to quiet it down a bit. The primary reason I went to V&H Dresser Duals is for looks and to "clean up" the right side of the engine. I am satisfied with the modification.
Tourer
Joined: Dec 2006
Posts: 282
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From:
RE: Normal exhaust flow?
i was getting ready to post my SE muffler and stock pipe mods that i made on my 07...if you look up the right side pipe, you will notice a piece of pipe partially blocking the flow...i took a hole saw and removed the obstruction...the right side stock muffler has more restriction too, but the SE muffs are the same on both sides.. it was a bear to get the SE muffs appart, but after i did my mods, the bike runs great for a stocker with only a sert and stage one...if anyone is interested i will post about my project...it sounds mello, but not offensive...i have cut appart the pipes on every bike i have ever owned....the SE muffs are identical inside to my streetrod muffs, they both must be built by supertrapp..
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JeckyllPhD
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Mar 19, 2008 03:44 PM
