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Old 11-11-2009, 08:14 PM
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europorsche914 europorsche914 is offline
Motorized Bicycle Elite Member
Join Date: Jun 2008
Location: Lancaster, PA / Newark, DE
Posts: 168
Default Re: Exhaust system question

technically half the original amount of exhaust pulses that were passing through the original muffler would be passing through each muffler, therefore 1/2 the back pressure, but im not sure about half the volume b/c each pipe would be emitting an exhaust note at approximately the same time but each has half the amplitude of the original therefore the same volume... example: 1 speaker outputs 60 watts, 2 speakers output 30 watts each (60 watts combined) both output same amount of power but 2 speakers require less work per speaker than in the 1 speaker i.e. less backpressure from 2 mufflers than 1... to obtain 1/2 volume but 2 times the backpressure = 2 mufflers in series... makes sense to me, at least at this moment maybe someone else will chime in... -Justin
SOLD..50cc Morini S6-T 5.8hp,
44 tooth sprocket, Early 1990's Diamondback Frame, 26" WTB FX28 Wheels w/ Shimano XT Hubs,
Dellorto PHBG Race Edition 19mm Carburetor, 4 Valve Reed Intake (combined adds ~2hp),
Homemade Expansion Chamber, Homemade Steel Pack Muffler, Homemade 1.6 gallon Rear Gas Tanks
TOP SPEED: 54.0 MPH (not gps tested yet)

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