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07-09-2013, 03:44 AM
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#1 |
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Registered User
Join Date: Feb 2013
Location: Where am I?
Posts: 45
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Muffler location
Hello fellow members, does muffler location effect sound? would have it route out from under the truck vs turndown change it too?
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07-09-2013, 05:44 PM
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#2 |
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Registered User
Join Date: Aug 2012
Location: Council Bluffs, Iowa
Posts: 280
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Re: Muffler location
Subscribed
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07-09-2013, 06:26 PM
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#3 |
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20' Daredevil (Ret)
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,497
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Re: Muffler location
Yes, everything you change on your exhaust will affect the way it sounds, either from inside the cab or from outside the truck -- or both.
How to quantify those changes is another matter entirely..... if it's even possible.
__________________
- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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07-09-2013, 06:35 PM
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#4 |
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Registered User
Join Date: Feb 2013
Location: Where am I?
Posts: 45
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Re: Muffler location
If i put them farther from the motor would it make it louder or quieter?
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07-09-2013, 11:25 PM
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#5 |
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Registered User
Join Date: Jul 2012
Location: White Salmon, WA
Posts: 263
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Re: Muffler location
I can only add that further from the headers the mufflers are the less they add restriction to the exhaust. Gasses will "condense" as they cool. Short exhaust tubes vs. long tubes have a different sound with the general idea that longer is mellower (less rasp). Drone is a thing on its own. Pipe size will also effect sound.
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07-10-2013, 09:27 AM
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#6 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Muffler location
Further back makes the muffler more effective. The gasses have cooled more and have less turbulence as they go further back. The muffler in turn is more effective at quieting the noise.
One of the magazines did a test some years back about this very issue. Posted via Mobile Device |
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07-10-2013, 09:32 AM
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#7 |
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Registered User
Join Date: Sep 2010
Location: Formerly MD and San Diego, now loving life in Arizona
Posts: 1,636
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Re: Muffler location
Interesting subject here.
I am getting ready to install a modified 396BB into my '69 Chevy and though the PO had what is basically open tubes that exited out the sides in front of the rear wheels, I am going to be following this as I would like to have a quieter setup that had minimal drone.
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Alan 2012 Ram 3500 Dually Crew Cab 6.7 Cummins 2014 Palomino Columbus 340RK 5th wheel '69 Chevy C10 396BB |
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07-10-2013, 03:12 PM
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#8 |
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Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,092
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Re: Muffler location
I've got 30inch glasspacks turnung out right before the back tire. The packs are under the cab. My pipes are 2.5 inch. Makes a nice growl but not to loud.
Posted via Mobile Device
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1969 Chevy c20(Miss Hackjob) |
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07-10-2013, 03:46 PM
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#9 |
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Master Hater
Join Date: Apr 2006
Location: Temple,Tx.
Posts: 402
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Re: Muffler location
http://www.pontiacstreetperformance....p/exhaust.html
Good reading with real world testing to back it up.
__________________
1997 C1500 ECSB 4.3/NV3500 8.5 3.42 "This evening, all of you bleeding hearts... why don't just go ahead and hug yourself for the next 20 minutes or so, because there's a really good chance you're gonna be offended".- Captain Owen Honors |
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