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Thread: too much interior noise
          
   
   

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  1. 11-03-2004 12:48 PM #1
    Don Meyer
    Don Meyer is offline Moderator
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    too much interior noise

     



    Well I finally got the 350 rebuilt & installed in Bufford( a 1948 chevy pick up,chopped ,extended doors & caddy fins on a narrowed 94 Chevy trk bed). I have 2 1/2" pipes & Dynomax turbo mufflers. This combo makes the interior too noise to carry on a conversation..........what to do?
    1. reduce the tail pipes to 2 1/4"
    2. install resonators aft of the mufflers
    3. replace w/quiter mufflers( I have no idea what would be quiter)
    Last edited by Don Meyer; 11-03-2004 at 12:52 PM.
    Don Meyer, PhD-Mech Engr(48 GMC Trk/chopped/cab extended/caddy fins & a GM converted Rolls Royce Silver Shadow).
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  3. 11-03-2004 12:57 PM #2
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    poncho62
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    How well is your floor insulated?

    What hangers are you hanging your pipes with? If too solid, the vibration makes it a lot louder.

    Do the tailpipes go right out to the back?
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  4. 11-03-2004 08:25 PM #3
    Don Meyer
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    The floor insulation is 1/2" thick thru out the cab. The carpet is also 1/2" thick. There is also dynamat thru out the cab.
    The hangers were installed at the muffler shop & include a 2" rubber hanger.
    Don Meyer, PhD-Mech Engr(48 GMC Trk/chopped/cab extended/caddy fins & a GM converted Rolls Royce Silver Shadow).
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  5. 11-03-2004 09:08 PM #4
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    panelbeater
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    i had those mufflers on a camaro i built and they were loud i have heard good things about flowmasters new 70 series mufflers it is the quietest one flowmaster makes.
    craftsman try to turn of the voices in there head. artists listen to them
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  6. 11-04-2004 11:11 AM #5
    Don Meyer
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    Thanks for the advice.....does someone know of a link that test the DB's of turbo mufflers?
    Don Meyer, PhD-Mech Engr(48 GMC Trk/chopped/cab extended/caddy fins & a GM converted Rolls Royce Silver Shadow).
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