Softail Models Standard, Custom, Night Train, Deuce, Springer, Heritage, Fatboy, Deluxe, Rocker and Cross Bones.
Sponsored by:
Sponsored by:

Does engine size determine pipe loudness?

Thread Tools
 
Search this Thread
 
Old Feb 1, 2012 | 06:40 PM
  #1  
AirBoyzT's Avatar
AirBoyzT
Thread Starter
|
Cruiser
Joined: Apr 2010
Posts: 245
Likes: 1
Default Does engine size determine pipe loudness?

So I had a 2009 Crossbones and got rid of it due to an injury I sustained while in Iraq. I had V&H Side Shots on it, and it was incredibly loud. It was also a 96ci. I now have a 2006 Softail Deluxe 88ci, and it came with V&H Pipes, however it isn't nearly as loud. It's also carbeurated (not sure if that makes a difference). So the question is, would new pipes make it louder? I'm looking at getting V&H True Duals, or does the 88ci really affect the sound of the pipes that much....
 
Reply
Old Feb 1, 2012 | 06:52 PM
  #2  
Fatbob usmc EOD's Avatar
Fatbob usmc EOD
Road Master
Joined: Dec 2010
Posts: 1,248
Likes: 1
From: Jacksonville, NC
Default

It affects it some. I think anyways. My 12' Fat Boy Lo with a 103 and the stock pipes seems a little louder then my 2010 Fat Bob did with it's 96. I think the styles of pipes you are talking about make a lot bigger difference then the cubic inches of the engines. The short shots are right in front of or next to the rider. The pipes in your sig pic go all the way behind the rider. Where the pipe exits probably makes the biggest difference not counting things like baffles.
 
Reply
Old Feb 1, 2012 | 08:20 PM
  #3  
AirBoyzT's Avatar
AirBoyzT
Thread Starter
|
Cruiser
Joined: Apr 2010
Posts: 245
Likes: 1
Default

Originally Posted by Fatbob usmc EOD
It affects it some. I think anyways. My 12' Fat Boy Lo with a 103 and the stock pipes seems a little louder then my 2010 Fat Bob did with it's 96. I think the styles of pipes you are talking about make a lot bigger difference then the cubic inches of the engines. The short shots are right in front of or next to the rider. The pipes in your sig pic go all the way behind the rider. Where the pipe exits probably makes the biggest difference not counting things like baffles.
Yea I can see where you are coming from, just miss the sound of my crossbones lol
 
Reply
Old Feb 1, 2012 | 08:58 PM
  #4  
Sgt_Jim's Avatar
Sgt_Jim
Stellar HDF Member
Joined: Feb 2011
Posts: 3,048
Likes: 3
From: Central Jersey
Default

Change out your baffles.. search "Harley Drag Baffles" on ebay.. there's some that are 2 inches, some that are 4, and some 8, etc.. stock V&H baffles are generally 13" long.. point is..the shorter the baffle, the louder the sound.. Soo..if you're feeling ballsy, you technically could remove the baffles from your pipes and use a hacksaw and cut the effers in half..and keep shortening them until you find a sound you like, or just go buy shorter baffles.. that'll make it louder
 
Reply
Old Feb 1, 2012 | 09:24 PM
  #5  
AirBoyzT's Avatar
AirBoyzT
Thread Starter
|
Cruiser
Joined: Apr 2010
Posts: 245
Likes: 1
Default

Originally Posted by Sgt_Jim
Change out your baffles.. search "Harley Drag Baffles" on ebay.. there's some that are 2 inches, some that are 4, and some 8, etc.. stock V&H baffles are generally 13" long.. point is..the shorter the baffle, the louder the sound.. Soo..if you're feeling ballsy, you technically could remove the baffles from your pipes and use a hacksaw and cut the effers in half..and keep shortening them until you find a sound you like, or just go buy shorter baffles.. that'll make it louder
but I probably shouldn't take the baffles out all together should I?
 
Reply
Old Feb 1, 2012 | 09:31 PM
  #6  
Shredding rubber's Avatar
Shredding rubber
Outstanding HDF Member
Joined: Aug 2011
Posts: 3,449
Likes: 8
From: Right about the middle
Default

Engine size will have some effect however compression is the real culprit. Those side shots on your bones were short and iirc pointed downwards,which bounce the sound right back up at you. And they are pretty short,so not much pipe to absorb sound.
Buy another pair of side shots,it will be similar sounding,unless they don't make a pair to fit your bike.
Try YouTube or ask a member who has a set you may have some interest in to send you a sound clip,or maybe V&H has sound clips.
Good luck in your search
 
Reply
Old Feb 1, 2012 | 09:33 PM
  #7  
AirBoyzT's Avatar
AirBoyzT
Thread Starter
|
Cruiser
Joined: Apr 2010
Posts: 245
Likes: 1
Default

Originally Posted by Shredding rubber
Engine size will have some effect however compression is the real culprit. Those side shots on your bones were short and iirc pointed downwards,which bounce the sound right back up at you. And they are pretty short,so not much pipe to absorb sound.
Buy another pair of side shots,it will be similar sounding,unless they don't make a pair to fit your bike.
Try YouTube or ask a member who has a set you may have some interest in to send you a sound clip,or maybe V&H has sound clips.
Good luck in your search
Yea I thought of that, I just don't think the side shots would look right on the deluxe
 
Reply
Old Feb 1, 2012 | 09:35 PM
  #8  
AirBoyzT's Avatar
AirBoyzT
Thread Starter
|
Cruiser
Joined: Apr 2010
Posts: 245
Likes: 1
Default

Perhaps the side shots would look ok if I wrapped them
 
Reply
Old Feb 1, 2012 | 09:54 PM
  #9  
Sgt_Jim's Avatar
Sgt_Jim
Stellar HDF Member
Joined: Feb 2011
Posts: 3,048
Likes: 3
From: Central Jersey
Default

No, don't take the baffles out completely. I don't know if you've ever actually checked out a pair of baffles ( i hadn't until I took mine out of my BSS's).. but there's really not a lot to them..it's just a piece of pipe that looks like someone took a can opener to it. I've actually got a set of "cups" for my new pipes ( a set that came off my dad's bike that i'm having coated black).. the cups were given to him by the guy who dyno tuned it and said "These are all you really need"....
they literally look like the ends of these, with the "can opener" part of the pipe sawed off..
 
Reply
Old Feb 2, 2012 | 08:33 PM
  #10  
Tx_Outlaw's Avatar
Tx_Outlaw
Elite HDF Member
Joined: Sep 2005
Posts: 4,656
Likes: 10
From: Aledo, Texas
Default

The bigger the piston and longer the stroke, the higher the scream.......
 
Reply



All times are GMT -5. The time now is 08:31 PM.