Resonator replacement with new mufflers.
02-11-2006, 08:30 AM
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Resonator replacement with new mufflers.
I searched but could not find any post about replacing the resonator with a different one or even replacing it with another mufler.
Background
The stock mufflers were replaced with a 5inch bullet muffler 12
Background
The stock mufflers were replaced with a 5inch bullet muffler 12
02-11-2006, 11:03 AM
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I have found the ratio of length to diameter (l:d) changes the range of frequencies the resonator will dampen out. however having a wider ranger reduces the dB reduction.
4:1= narrow band dampening; 8:1=wide band dampening
With the internal volume depicting the center frequency (larger the chamber the lower the center frequency).
I would think a larger volume resonator than stock (stock 04 is aprox 118.4in^3 with length of approx 10inches) with a narrow band dampening at the main center frequency of the predominant in cab frequency would only reduce the dB output of the drone but still retain the deep tone that I have every where else and not effect the high speed RPM sound.
From the numbers I was think of going with a
4inch round Bullet muffler that has 3inch in/out connections and has a resonating chamber 18inches long (4.5:1 ratio).with an internal volume of 226.08in^3
Or go with a
5inch round bullet muffler with 3.5in/out connections resonating chamber is 12inches long (2.4:1 ratio) with an internal volume of 235.5
4:1= narrow band dampening; 8:1=wide band dampening
With the internal volume depicting the center frequency (larger the chamber the lower the center frequency).
I would think a larger volume resonator than stock (stock 04 is aprox 118.4in^3 with length of approx 10inches) with a narrow band dampening at the main center frequency of the predominant in cab frequency would only reduce the dB output of the drone but still retain the deep tone that I have every where else and not effect the high speed RPM sound.
From the numbers I was think of going with a
4inch round Bullet muffler that has 3inch in/out connections and has a resonating chamber 18inches long (4.5:1 ratio).with an internal volume of 226.08in^3
Or go with a
5inch round bullet muffler with 3.5in/out connections resonating chamber is 12inches long (2.4:1 ratio) with an internal volume of 235.5
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