Running one baffle has me perplexed
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Seasoned HDF Member
Joined: Mar 2012
Posts: 5,157
Likes: 740
From: new caney, tx
Running one baffle has me perplexed
I've been searching exhaust for a few weeks.i have full boar slip ons now and the chrome is worse than kury quality. I just so happened to be looking at fuel Moto hi roller on the sh!tter this morning. When he got to the part about the inserts he mentioned maybe running one only I was like ummm. Maybe it an m8 thing and I have no idea bout those bikes. I've never heard of anyone only running on baffle or insert. Does anyone do that? I totally trust what FM says but that had me confused lol.
Road Captain
Joined: Dec 2014
Posts: 722
Likes: 374
From: Daytona
When I ran Supertrapps on my Evo Dresser, I stacked more discs in the right muffler than the left due to there being more flow on that side.
The ‘09 and up dressers have a similar setup with stock pipes. Evos and early Twin Cams have two pipes coming off of the rear cylinder going to both mufflers, the left exiting at a 90 degree angle so, not a lot of flow, and the right muffler gets exhaust from both cylinders with a more direct flow.
The ‘09 and up exhaust pipes collect from both cylinders before the pipe for the left muffler exits at a 90 degree angle. It’s more efficient but, there is still more flow exiting the right muffler.
So, what he is saying is to experiment with the single baffle on each side to see what works best for your particular setup. I think though to really see a difference you’d need to dyno the bike in those configurations to know what works best.
The ‘09 and up dressers have a similar setup with stock pipes. Evos and early Twin Cams have two pipes coming off of the rear cylinder going to both mufflers, the left exiting at a 90 degree angle so, not a lot of flow, and the right muffler gets exhaust from both cylinders with a more direct flow.
The ‘09 and up exhaust pipes collect from both cylinders before the pipe for the left muffler exits at a 90 degree angle. It’s more efficient but, there is still more flow exiting the right muffler.
So, what he is saying is to experiment with the single baffle on each side to see what works best for your particular setup. I think though to really see a difference you’d need to dyno the bike in those configurations to know what works best.
Thread Starter
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Seasoned HDF Member
Joined: Mar 2012
Posts: 5,157
Likes: 740
From: new caney, tx
Im not using this set up. I just stumbled on that video and it had me wondering. I knew about the difference in flow from left to right but never thought about restricting one over the other
Road Captain
Joined: Jun 2008
Posts: 735
Likes: 228
From: Lagoa - VNF
When I ran Supertrapps on my Evo Dresser, I stacked more discs in the right muffler than the left due to there being more flow on that side.
The ‘09 and up dressers have a similar setup with stock pipes. Evos and early Twin Cams have two pipes coming off of the rear cylinder going to both mufflers, the left exiting at a 90 degree angle so, not a lot of flow, and the right muffler gets exhaust from both cylinders with a more direct flow.
The ‘09 and up exhaust pipes collect from both cylinders before the pipe for the left muffler exits at a 90 degree angle. It’s more efficient but, there is still more flow exiting the right muffler.
So, what he is saying is to experiment with the single baffle on each side to see what works best for your particular setup. I think though to really see a difference you’d need to dyno the bike in those configurations to know what works best.
The ‘09 and up dressers have a similar setup with stock pipes. Evos and early Twin Cams have two pipes coming off of the rear cylinder going to both mufflers, the left exiting at a 90 degree angle so, not a lot of flow, and the right muffler gets exhaust from both cylinders with a more direct flow.
The ‘09 and up exhaust pipes collect from both cylinders before the pipe for the left muffler exits at a 90 degree angle. It’s more efficient but, there is still more flow exiting the right muffler.
So, what he is saying is to experiment with the single baffle on each side to see what works best for your particular setup. I think though to really see a difference you’d need to dyno the bike in those configurations to know what works best.
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