Dos anyone have any ideas on how to quiet down a muffler short of replacement. What's that? I can't hear you.
Howie
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Dos anyone have any ideas on how to quiet down a muffler short of replacement. What's that? I can't hear you.
Howie
Howie
Tough call; your best bet would be to change the system. Probably a dual quiet pack system would work fine in a Speedster.
what do you have?
I have an American made duel quiet (Empi type) system which I had custom fit. I'm thinking that I can cut open one of the mufflers and depending on what is in there, stuff glass fiber in there.
Howie
Howie
I don't have a solution for you but I don't like yours. Is it a tone issue or loudness issue? Sometime (and I do mean sometime) the source of the unpleasant "noise" is not always the exhaust exit point. The exterior thickness of the muffler wall changes the sound quite a bit.
Ever pick up an exhaust manifold from a v8 or similar. The "mass"
dampens the pulses and sends them down the pipe. A pipe half as thick
would do the routing job but nothing for the noise (and they were cheap).
Ever pick up an exhaust manifold from a v8 or similar. The "mass"
dampens the pulses and sends them down the pipe. A pipe half as thick
would do the routing job but nothing for the noise (and they were cheap).
I'd try a pair of baffles from a motorcycle supplier. Slip them into the pipe and secure with a tack weld or a couple of set screws first, then tack weld them if you like the sound/performance.
https://www.directparts.com/cgi-bin/dp.store/EN/Catalog/1656
I used them in the drag pipes on my old Harley, and the Matchless. Worked great, of course.
We use a similar thing these days in stinger during "mufflers only" nights.
Worth a look?
Luck!
https://www.directparts.com/cgi-bin/dp.store/EN/Catalog/1656
I used them in the drag pipes on my old Harley, and the Matchless. Worked great, of course.
We use a similar thing these days in stinger during "mufflers only" nights.
Worth a look?
Luck!
If you are going to cut the muffler open you could back it with ceramic wool. It's temp rating is about 900 degree F.
Originally my JPS 2367 cc type IV had a Monza muffler. Nice sound, but it ran out of breath at 5000 RPM. Had the valves opened way up, added a 4-1 header with a Dynomax muffler. WOW! Big power increase, still pulling at 6000 RPM. WOW! Big noise increase (compains my wife). Hey, the engine is behind me, how should I know how it sounds?
So the question is: With a custom made engine, just how do you know what the exhaust will sound like? No dealer wants to offer a free test drive to see how you like their muffler application.
So the question is: With a custom made engine, just how do you know what the exhaust will sound like? No dealer wants to offer a free test drive to see how you like their muffler application.