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Has anyone had any experience with exhausts and their voloume?
Anyone been through an engineer's test where he measures the DB of the exhaust?
I can't get my car pass rego because I need to quieten the exhaust. Can someone give me an indication oh how loud 90db is?
What methods are there to quieten an exhaust? I cannot see a hole that I can bolt a silencer onto. Suggestions so far is to put a 1-1.5" gasket to restrict air flow.
The exhaust system atm is full 3" with the stock cat.
SCREEEEEEAAAAAAAAAAMMMMM!!!!
thats bout it :D
anything over 80dB and your first reaction would be to cover your ears. 90dB is just over the point where it starts to effect hearing loss.
Hahah rowie, really? that loud, the engineer told me stock cars produce around 85-87db, and I'd be really pushing it especially because it is 3", he said the air flow will cause it to fail - his instruments work by measuring the change in air flow or something :x
lol, i think my exhaust is past 90dbs, cos everytime i go thru a carpark most of teh alarms go off..
Yeh most people's exhausts are over 90db - but its just because my car hasnt been registered before, it needs a blue slip and the exhaust gets tested.. let this be a lesson to those who purchase their cars from interstate...
****en stupid stupid rule I tell ya..
as long as you dont have your ear sitting right next to your exhaust tip. But yeh, 90dB direct in the ear drum = hearing loss.
Theres no way you can get your hands on a dB meter ?
put some chicken wire in the muffler for the blue slip.
The engineer said it's the idle bassy tone that will make me fail..
See I have a dillema Rowie, I gotta pay $150 for this engineer, then $50 for the blue slip..OR go get a stock exhaust for the blue slip - any idea how much this will set me back (to remove and replace, then remove and replace again)?
If I could get a dB meter it would be great..
That works wonders. Actually, just 2 wires in a X in the exhaust tip do the same thing.Quote:
Originally Posted by Rowie
Shit, I didn't know 90dB was dangerous - I'd reckon I have my stereo above 95dB at most times.... and I attend a lt of concerts too...
anything over 90dB will gradually make your ear drum hairs fold over. It doesnt make you deaf straight away, but with consistant high noise of over 90dB will effect your hearing :(
I wonder if you could go to a place like strathfeild car radio and see if they can measure it with a dB meter?
Yeh, with most people's (aftermarket zorst) car being over 90db, I guess they don't hear it because they're in the cabin, all they hear is the bassy rumble..
I think how they test the dB is by placing the measuring device 1metre from the exhaust tip and measuring it at 3000rpm...