Jake F6 Donating Members 327 Member For: 21y 8m 24d Location: Melbourne Posted 13/01/09 10:37 AM Share Posted 13/01/09 10:37 AM I took the car for a good long drive to Mt. Donnabuang, and gave it a bit of stickgoing up themountain, which was fun.Anyway, I noticed today that the exhaust has developed a "raspy" typeof note at certain revs (around 1800 RPM). It's only there for a small rev range.Kind of sounds a bit like crappy Lancers with big exhaust, when they take off.Could this be a cat converter on the way out? Any ideas? Link to comment Share on other sites More sharing options...
Maximus Member 1,627 Member For: 18y 27d Gender: Male Location: Slip Sliding Away Posted 13/01/09 10:40 AM Share Posted 13/01/09 10:40 AM Loose heat sheild maybe??? Link to comment Share on other sites More sharing options...
RHR BOOST Moderating Team 5,698 Member For: 21y 7m 2d Gender: Male Location: Southern Highlands NSW Posted 13/01/09 10:52 AM Share Posted 13/01/09 10:52 AM Could be anything. Link to comment Share on other sites More sharing options...
01txr Member 861 Member For: 18y 2m 24d Gender: Male Location: QLD Posted 13/01/09 10:56 AM Share Posted 13/01/09 10:56 AM I have had baffles come loose inside mufflers in my old v8's.what brand mufflers are you using and what power you making Link to comment Share on other sites More sharing options...
Jake F6 Donating Members 327 Member For: 21y 8m 24d Location: Melbourne Posted 13/01/09 11:29 AM Author Share Posted 13/01/09 11:29 AM Stock exhaust, with center muffler replaced with straight pipes (12 months ago).252rwkw (Its manual). Link to comment Share on other sites More sharing options...
Hank Scorpio Member 14 Member For: 16y 2m 25d Gender: Male Posted 13/01/09 12:18 PM Share Posted 13/01/09 12:18 PM had the same problem it was the rear muffler searched for the f#$king noise for ages, sounded like a heat shield/vibration Link to comment Share on other sites More sharing options...
01txr Member 861 Member For: 18y 2m 24d Gender: Male Location: QLD Posted 13/01/09 01:23 PM Share Posted 13/01/09 01:23 PM Being factory muffer, I would say the baffles in side have come lose.You will find the baffle plates are spot welded into place and with added exhaustpressure on the rear muffler from deleteing centre and extra power would make the chances ofthe plates coming lose. Link to comment Share on other sites More sharing options...
Ghosti NOT THERE!... THERE! Member 852 Member For: 16y 11m 15d Gender: Male Location: Melbourne Posted 13/01/09 10:15 PM Share Posted 13/01/09 10:15 PM Try the heatshield first mate.I'll be voting mine off the island when I get home tonight.It's developed a shocking vibration in the last 2 weeks and it's started to happen not just at idle but at around 40k's as well. Worse when the AC is on.Sounds like a f*cking rusty old corolla.Worth a shot before you go replacing mufflers. Link to comment Share on other sites More sharing options...
ENVY-T CNUTOX Donating Members 3,098 Member For: 22y 3m 1d Gender: Male Location: Not sure? Posted 13/01/09 11:16 PM Share Posted 13/01/09 11:16 PM I had the same problem. Put the centre muffler back in, and it went away. The factory rear muffler is really quite chinese. Probably made in the nizpro factory. Link to comment Share on other sites More sharing options...
XRDOSE BIGRED Donating Members 1,410 Member For: 18y 15d Gender: Male Location: Sth East Melb Posted 14/01/09 03:52 AM Share Posted 14/01/09 03:52 AM yeh I had the same problem after I had my centre muffler removed it turned out to be the rear muffler! replaced it and bobs your uncle problem fixed! Link to comment Share on other sites More sharing options...
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