help with sound...
 

So, I am getting kind of annoyed with the sound coming from my exhaust. I've had this 96 LX for about a week now, and have noticed at times when I don't have my stereo playing that the exhaust will rattle at mid-rpm range (i haven't watched the tach for specific numbers, but I'd say somewhere in the 2k-3k range). My wife says she can hear it in the house when I'm pulling up. Had a rattle once in a camaro I had but was a weld problem, and the exhaust was just re-welded when I got the accord as it was loose. Though the metallic quality of the sound still almost convinces me it's a broken weld. Never really had this problem with a v8 so I'm not sure what needs to be done. I've read on this forum a couple of references to a resonator, how might this part help/hurt the sound issue? Anyone have any thoughts? Thanks so much

RE: help with sound...
 

well it depends. that rpm could just be the resonate frequency of the cover on the cat converter. ive gotta go to class i can post some more later about the resonator

RE: help with sound...
 

do you have anyway of getting someone inside the car and hold it at that RPM while you listen/look for the vibration? just listen/look, maybe have an oven mit or something you can use to hold different parts and see if you can stop them from vibrating to track it down more effectively...

RE: help with sound...
 

not sure how well that will work...the car has definitely been lowered, probably 1 1/2 or 2 inches. Can't see a thing underneath unless from the back of the car.

RE: help with sound...
 

hmm... well I suppose you could check for noise from the engine compartment and the muffler with that method otherwise I'm not sure unless you raise the car... I used to drive mine up onto a couple of 2x4 pieces of wood when it was lowered so I could see underneath better...

RE: help with sound...
 

good thought. Any more details out there about the resonator? What is its purpose?

RE: help with sound...
 

on loud aftermarket exhausts.....a resonator will make the exhaust produce a deeper note. if you have a rattle it probably wont fix that. your cat is probably rattling

RE: help with sound...
 

My brother in law suggested the cover on the cat this afternoon. Hopefully will get this rattle fixed very soon. I'm going to look into the resonator for sure. With the background I have in cars, deeper exhaust tone is definitely better. :D

RE: help with sound...
 

yea if it sounds like a rattle then its probably your cat. if it just sounds raspy like a juicy fart then it might be your exhaust.

RE: help with sound...
 

it could also be just a heat shield or maybe the catylatic converter it just depends on the sound

RE: help with sound...
 

I have a similar problem, does it rattle mostly when the tranny shifts gears? mine does everytime it shifts into another gear, at the start of the gear the cat and arospeed mid section pipe rattle but it only lasts for a couple seconds unless i press the pedal more. my bro in law has recommended me to re torque ALL nuts and bolts and reapply gaskets making sure theyre in the correct position, cus he told me something about that if the pipes arent lined(bolted) up as straight as possible then pressure could be escaping causing the pipes to rattle. the weird thing is that all this rattling started when i installled my arospeed mid section pipe, back then i had my headers, cat,stock mid section pipe,rear section flowmaster and no rattling but i added the "high performance" arospeed pipe and all the trouble started.

RE: help with sound...
 

the resonator, isnt that the silencer?
man i put my silencer last week on my other rear section apc exhaust and it only got worse and with my apc rear section i noticed hp loss, so i put my flowmaster back in and damn! its runs like a beast and doesnt rattle as much but still rattles. im just glad its running like a beast.[8D]