Baffles? info please!
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
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From: Phoenix '53, '88, '09 Big Twins
depends on which pipes you use.
as far as wrapping, Supertrapp says that when the packing is removed exhaust gas velocity is reduced. the gasses may eddy and even reverse course.
all of which is bad for performance.
consider that with any pipe that goes from a 1/75" header to a 3, 4 inch muffler ( if wide open/ no baffling) then the gasses are going to slow....
which means no low pressure zone behind them to help "pull" the next air fuel charge into the cylinder.
Loud does not always equal fast.
matter of fact louder bikes are sometimes slower to get going as they may sacrifice torque
mike
as far as wrapping, Supertrapp says that when the packing is removed exhaust gas velocity is reduced. the gasses may eddy and even reverse course.
all of which is bad for performance.
consider that with any pipe that goes from a 1/75" header to a 3, 4 inch muffler ( if wide open/ no baffling) then the gasses are going to slow....
which means no low pressure zone behind them to help "pull" the next air fuel charge into the cylinder.
Loud does not always equal fast.
matter of fact louder bikes are sometimes slower to get going as they may sacrifice torque
mike
Last edited by mkguitar; Mar 10, 2014 at 09:19 PM.
Club Member
Joined: Apr 2013
Posts: 5,760
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From: Cape Cod
I have 1 3/4" pipes all the way through.........fishtails.....Fullsac duals........had them open, 4" baffles and now 8" baffles all unwrapped in there....I like the 8" so far.......takes the BITE out of just a bit....still runs good, crank the wick and it really sounds nice, can still hear the factory radio, cruising is quite mellow. Goes along with the K&N air filter. I'll be putting a tuner on in the future.
Just my .02
Just my .02
Ultimate HDF Member
Joined: Jan 2009
Posts: 5,016
Likes: 277
From: East Tn Foot of The Dragon
Generally, removable baffles run from 1.5" to 2.5" Some mfg's use steel baffles that use no fiberglass type wrap material around the baffle. The all steel baffles have more of a "crack" sound to them and are less mellow or "toned" then wrapped baffles. The smaller the baffle the quieter and more backpressure they produce. The 2" baffles on most stock or lightly modified motors produce the best overall increases in performance.
Last edited by checkers; Mar 11, 2014 at 06:36 PM.
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