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Old 03-18-2007, 03:54 AM   #1
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Default exhuast clip and resonator questions

Here are the specs:
93 L27 with a flowmaster 80 single in/single out exhuast. The muffler is welded on. The car has no resonator, and I'm thinking I should add one. The reason for that, is the car has a bit of a ricey sound, espically right after start up. It makes a horrible rice sound that goes away after a few seconds., that I havent heard in any other clips of L27 without resonators. After checking out some clips on BonneMeMN'* website (fearthepearl.com) I ran across a 94 SLE with a resonator, that sounded a ton better. Think a resonator could be the reason why my car: http://smg.photobucket.com/albums/v4...rrent=100_.flv doesnt sound like this car: http://www.fearthepearl.com/vids/zeke.mpg ?

Keep in mind that my clip was probably 2600 RPM'* or less. Anything horrible and it would have sounded really bad.
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Old 03-18-2007, 01:07 PM   #2
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You know my story on the Zilla, right? No factory resonator (you know 94 was the first year for them).

Magnaflow cat, magnaflow F-body muffler. Ricey raspy poppy. Good cabin drone cruising on the highway. Heavy carpet padding in the trunk helped, but not enough. Car would turn heads just accellerating around a corner in town.

Added a monster resononator (Magnaflow of course). Nice and rumbly now at idle, toned down a bit, but sounds mean if you're right behind the car. Mean, not loud. REALLY wakes up when you romp it though, and no raspy/poppy. Mellowed it out to a good rumble through the mid-rpm'*, and a mean roar wide open.
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Old 03-18-2007, 01:09 PM   #3
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Quote:
Originally Posted by willwren
You know my story on the Zilla, right? No factory resonator (you know 94 was the first year for them).

Magnaflow cat, magnaflow F-body muffler. Ricey raspy poppy. Good cabin drone cruising on the highway. Heavy carpet padding in the trunk helped, but not enough. Car would turn heads just accellerating around a corner in town.

Added a monster resononator (Magnaflow of course). Nice and rumbly now at idle, toned down a bit, but sounds mean if you're right behind the car. Mean, not loud. REALLY wakes up when you romp it though, and no raspy/poppy. Mellowed it out to a good rumble through the mid-rpm'*, and a mean roar wide open.
Do you remember about how much one cost?
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Old 03-18-2007, 01:55 PM   #4
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No clue. Mine was a 'sponsored' part. I paid cost and no install. It was at WCBF '04 tech day.

Try www.justmagnaflow.com and measure how much room you have to work with between the cat and the first big bend under the car. We squeezed in the biggest one we could, and still had to cut the flanges short on it to make it fit.
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Old 03-18-2007, 02:05 PM   #5
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A little note...

I just installed a Flowmaster 80 Series dual outlet muffler on my car...

I can't say that I experience the raspy noise still (I had the resonator removed on a previous muffler) but I almost want to consider getting one. Reason being that the interior resonance between 1500 and 2000 rpm'* is DEAFENING. You can feel the vibrations moving through the car.

As far as sound goes, it sounds great...nice muscle car sound at startup and idle, and in motion. I think a resonator would help in both of our cases, though.

I probably can live with the resonance and I won't get one...but it would help.
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Old 03-18-2007, 02:10 PM   #6
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If a resonator isn't in the budget, add some household carpet padding under your trunk carpet. It'll help a little.
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Old 03-18-2007, 02:14 PM   #7
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Quote:
Originally Posted by willwren
If a resonator isn't in the budget, add some household carpet padding under your trunk carpet. It'll help a little.
Thanks a lot for the suggestion. I'll give that a try and see what happens.
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Old 03-18-2007, 03:06 PM   #8
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I am looking into getting a nice muffler for my bonne but can't decide on which one. I love performance and love the muscle car sound. I would like to run duals from front to back but I read that probably won't help performance wise so probably just put highflow cat and good muffler on it. Any idea which one I should go for?
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Old 03-18-2007, 03:17 PM   #9
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You'll get many opinions with that question.

I prefer Magnaflow, Magnaflow, Magnaflow.
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Old 03-18-2007, 03:51 PM   #10
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I love my MagnaFlow high flow cat, no questions there.

As for the muffler, you'll get many different opinions. I much prefer the Flowmaster over the MagnaFlow I had. Sound is vastly improved. The car feels a little quicker too, though whether it actually is or not is uncertain.
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