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exhaust droning at 2200rpm 

 

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 Post subject: exhaust droning at 2200rpm
Posted: Tue Feb 20, 2007 7:12 pm 
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My car seems to drone at around 110kmh (about 2200rpm), and can get kinda annoying on long trips. I think they may of removed the resonator (or at least not installed a new one) when they put together my 2.5" exhaust. It's an 85 model, so there are no cats either - just 1 lonely muffler.


Just wondering if putting the resonator back in would help this? And would it impact anything alse?

 

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Posted: Tue Feb 20, 2007 8:27 pm 
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would be quieter over all and little or no drone
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Posted: Tue Feb 20, 2007 9:24 pm 
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There was a post a while ago, can't remember who it was or when... but he had a rad setup. Standard for cruising and long trips and loud for around town. Was just an interchangable rear muffler. Seemed to me like a good idea...

 

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Posted: Tue Feb 20, 2007 10:02 pm 
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yea he had his tail pipe on a flange from just after the diff, so itf he was going on hugly long trip could be quite but round town could be loud as f**k. quite a good idea if you can be bothered. wouldnt take much if ur handy with a welder
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Posted: Tue Feb 20, 2007 10:53 pm 
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I used to have an leaded XF with one Muffler too, it droned real bad, chuck a resonator on it & see how it sounds..

 

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Posted: Tue Feb 20, 2007 10:53 pm 
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u can install a electronic flange in ur exhuast, they open more as u put the foot down, so at low throttle pressure, its only opens a bit

 

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Posted: Tue Feb 20, 2007 11:59 pm 
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I think I done really well when I got my zorst. Its pretty loud (and sounds perfect) when you put your foot into it but when your traveling (even at 110) you pretty much don't hear it! Same goes for around town...

Mines just your standard 2.5'' with normal muffler and then a smaller one at the a*** end (resonator?!?)

cheers, Nathan
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Posted: Wed Feb 21, 2007 7:53 pm 
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an electric flange would be good to see, i think your refering to the valves that are controlled from inside the cabin that restrict the overall diameter of the exaust effecting sound.
suitable for track/road cars apparently but don't seem to be all that popular.
flange at the diff is ok but it's too late to just change it back after you already got the defect.

 

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