This is Baffling!
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Road Captain
Joined: May 2014
Posts: 641
Likes: 30
From: Clovis, CA
This is Baffling!
My attempt at humor, I know is lame.
I have a set of V&H Dresser Duals. Sound great to me...But, I have a penchant for modifying something. I pulled the baffles out of these duals and thought to myself..."What would happen if I cut the venturi end off the baffle (end closest to engine) Slid a thin walled pipe over the first 1/3 of the baffle (again end closes to engine) tacked it in place and rewelded the venturi back on?
Has anybody done this? If not, what would be your expectation of the outcome as far as sound, fuel management issues, etc. and please back it up with some mechanical knowledge.
Thanks!
I have a set of V&H Dresser Duals. Sound great to me...But, I have a penchant for modifying something. I pulled the baffles out of these duals and thought to myself..."What would happen if I cut the venturi end off the baffle (end closest to engine) Slid a thin walled pipe over the first 1/3 of the baffle (again end closes to engine) tacked it in place and rewelded the venturi back on?
Has anybody done this? If not, what would be your expectation of the outcome as far as sound, fuel management issues, etc. and please back it up with some mechanical knowledge.
Thanks!
Stellar HDF Member
Joined: Nov 2008
Posts: 2,432
Likes: 290
From: FL
I'm not trying to come across the wrong way here but I'd think you would have asked this question before you performed the modification. But now that you've done it, you would now the expert on this subject. Also, what slips on did you do the modification to?? I didn't think the V&H dresser duals had baffles in the headers.
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Road Captain
Joined: May 2014
Posts: 641
Likes: 30
From: Clovis, CA
Ok, just some miscommunication here. I haven't done anything yet. I was cleaning and polishing and decided to remove the two screws that hold the end caps on my V&H slip ons. I pulled the end cap out and of course the baffle came with it. This is where I pondered the "What if..."
Outstanding HDF Member
Joined: Sep 2010
Posts: 2,630
Likes: 185
From: Mountain West, Big Sky Country
If you close of a third of the baffle in my opinion that would potentially increase back pressure
While cutting the baffle in half and reinserting would decrease back pressure (assuming the end cap screws would hold the baffle in the muffler)
Dont think this would migrate using fuel mgmt and may make it harder to tune.
S&s spends a bunch of money on r&d, not certain i would try to out guess them In this area.
MY two cents which is probably more than my post is worth.
While cutting the baffle in half and reinserting would decrease back pressure (assuming the end cap screws would hold the baffle in the muffler)
Dont think this would migrate using fuel mgmt and may make it harder to tune.
S&s spends a bunch of money on r&d, not certain i would try to out guess them In this area.
MY two cents which is probably more than my post is worth.
Tourer
Joined: Aug 2014
Posts: 263
Likes: 6
From: Wake Forest, NC
Do you have a picture of said baffles? I know V&H have both an open baffle (cheese grater straight thru) and a quiet baffle (half wrapped, and the end near the motor is capped to force thru several smaller holes.)
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