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Manky Monkey Motors > Technical Section > HotRod Tech > noise law
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Author Topic: noise law  (Read 3925 times)
fORGOTTEN
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« on: July 29, 2014, 06:33:13 PM »
Is there such thing? Running the chevy with just headers at the moment to try and see if it cures a rattle but gotta run it for abit with out any more of the exhaust fitted.  Haw would mister happy feel about it
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Will that pass S.V.A?
Manky Monkey
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« Reply #1 on: July 29, 2014, 07:00:18 PM »
My Pop had to be 101db or less to pass the SVA test.
2 silencers, (under the cab), registered 106db on the meter.
Adding 2 more silencers at the back brought it down to 95.5db I think.
« Last Edit: July 29, 2014, 08:32:32 PM by Manky Monkey » Logged
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fORGOTTEN
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« Reply #2 on: July 29, 2014, 07:13:21 PM »
Andy you still got the two mild steel cherry bombs?
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Manky Monkey
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« Reply #3 on: July 29, 2014, 07:29:23 PM »
Yup -but no idea where -they might be in Loony's Things That Might Come In Handy stash.
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fORGOTTEN
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« Reply #4 on: July 29, 2014, 07:48:58 PM »
Ill have a look just wanna nab them to mock up some temp  exhaust so I can hear if the rattles gone
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kapri
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« Reply #5 on: July 29, 2014, 08:02:05 PM »
The Police test to something like 85db! It's total b/s as they just whip out a sound meter and wave it around near the exhaust , no set height /angle etc as required for testing . My mates 50e pick up passed SVA with about 106 at tickover but 95 at the required revs.
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fORGOTTEN
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« Reply #6 on: July 29, 2014, 08:10:04 PM »
Ok cool its only for a couple of days
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