[urq] RE : Noisy exhaust

[Louis-Alain Richard]

In my modest experience, they are both right. The resonator is there to
change the pitch of the noise, the muffler is there to quiet it. So maybe
the resonator is not appropriate for the muffler, and then you can try to
change it for another style. If you remove it, I am guessing that you'll end
with a louder car. 

So the solution is in the muffler IMO. What you need is a big muffler, one
designed for a bigger engine than your 2.2 but one for a stock engine.
Plenty of flow, low noise. You're lucky as the rear end of our cars is not
too tight compare to the underbody of other small cars. 

And last, to quiet the "bark", the muffler must be filled with "wool" or any
other material that will dampen the metallic noises. I remember seeing a
cut-open muffler from a 92-95 V6 Camry and that thing was very cleverly
designed, but heavy. Maybe this is a solution for you, as it has twin pipes
and is designed for a 3,0 liter engine. Usually these kind of stock muffler
gives a very rich tone to the exhaust noise. You must adapt it, though.

I played a lot with muffler on all my previous cars except the urQ. When I
was young, I had access to obsolete parts from a big FLAPS. These new
Maremont/Ansa/Walker exhausts were destined to the crusher, so I "saved" a
few for my projects. I always chose twin pipes mufflers, some from big MB,
some from turbo Mustang pre-SVO, some from the Chryco turbo cars, some from
the MK1 RX-7, VW GTi 16V, you see the pattern ? There is still some of these
at my parents home... I think.

The conclusion of all that muffler swapping was that mufflers for turbo cars
are very noisy on a non-turbo vehicle, and bigger is better.

Good luck !

Louis-Alain


> -----Message d'origine-----
> 
 
> I am getting conflicting messages from my immediate
> consultants regarding the resonator.  Some say the
> resonator is providing the noise I hearing and some
> say the resonator is there to "quieten" the system.
> Should I remove it??I would appreciate any comments or
> suggestions regarding this issue.
> 
> Secondly, if the resonator is not the problem, what
> can I do to the muffler to tone down the noise without
> restricting the flow to much???  Thanks again.
> 
> Tony: 83 URQ; 4K CSQ; 86 model 90Q,
>