Thread: too much interior noise
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11-03-2004 12:48 PM #1
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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11-03-2004 12:57 PM #2
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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11-03-2004 08:25 PM #3
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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11-03-2004 09:08 PM #4
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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11-04-2004 11:11 AM #5
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).
Getting closer on this project. What a lot of work!
Stude M5 build