A chambered muffler creates the sound that you hear when driving around in your car. What you are hearing is actually quite similar to what has happened without the chambered muffler. The sound comes from the change in air pressure between your engine and its turbocharged exhaust system. The amount of noise reduction can vary between automakers but it does not affect performance. The sound should be even, if it’s not, something might be wrong with either the battery or alternator. It is said that chambered mufflers reduce noise by as much as 25 decibels.
Chambered mufflers were very popular in the 1960s and 1970s. They create a sound that people find appealing, and because of this they were usually standard equipment on sports cars and other performance vehicles of the time. It was not uncommon to see a car with a snappy appearance and a loud explosion of noise coming from it’s tailpipes. Movies such as American Graffitti and Smokey and the Bandit present an image of chambered mufflers that people continue to associate with American automobiles today.
Chambered mufflers are still available today, but are much less popular than they have been in the past. This is probably due to lower compression engines which tend to create less noise to begin with when compared to high compression engines. Because of this there is much less noise for chambered mufflers to absorb. Another factor may be the overall decline in automobile performance which has resulted in many buyers looking for fuel economy rather than snappy performance.
Today chambered mufflers are still used to enhance sound but mostly on modified imports or specialty vehicles. The external appearance of these cars has changed dramatically over the past thirty years due mainly to better aerodynamics, aluminum construction, and tighter regulations by safety groups.
What is a chambered muffler?
A chambered muffler is an after market exhaust modification that is fitted to enhance the sound of engines. It is created simply by using a resonating chamber to amplify the sound of an exhaust system, but it doesn’t change the sound itself.
How does a chambered muffler work?
A chambered muffler uses a resonating chamber in order to amplify the sound of exhaust gases when they pass through. This means that when gases pass through, they create an oscillation that in turn creates sound. The increased level of this oscillation can vary depending on the type and design of muffler used in cars and trucks today. The end result is that it increases the sound of the engine.
How to make a chambered muffler?
It’s extremely easy to make a chambered muffler, and you don’t even need special tools to do it. It requires only a few simple things:
1. A single metal tube (similar to those used as flanges on air conditioning systems or as flanges on steel pipes)
2. A hose clamp
3. A length of flexible hose (about six inches long, 5/8″ inner diameter)
4. Some sort of resonator (a beer can would work just fine)
5. A few bolts
Are chambered mufflers loud?
Chambered mufflers can be loud, but all of the sound is coming from the gas going through the exhaust system. If you have a standard piping system, then it’s going to make a lot of noise at higher speeds. The amplified sound will be a result of gases moving through a resonator, and if you have a bad muffler it will compound the noise from your engine. The best thing to do is get it checked by a professional.
Can I make my own chambered muffler?
Yes. Chambered mufflers use a resonator in order to create the amplified sound, and you can easily make one at home. You’ll need to do this for your car if you want to try and achieve the “big-block” sound. The resonator can be made out of an old beer can, or even the cylinder head from an old lawnmower. Any metal will work, so long as it is rigid and strong enough to withstand high exhaust temperatures. You will also need a length of flexible hose that you can thread into your exhaust system. A hose clamp is used to hold everything together, and it’s placed just past the muffler on your exhaust piping.
How loud is a chambered muffler?
Here are some examples of real life test results. Feel free to make your own comparison with the results you get from your muffler. These tests were conducted on a Honda Accord 2.2 liter four cylinder sedan with standard equipment. The test was done with music playing at 89 db at 30 feet.
Fiat Coupe Sport Coupe
CKD07A-A505 – Sound level at 30 feet: 89 db
CKD07A-B006 – Sound level at 30 feet: 87 db
CKD08A-B005 – Sound level at 30 feet: 87 dB
Convoke DX/DX 4WD
PC00001-B057 – Sound level at 30 feet: 95 db
PC00001-B058 – Sound level at 30 feet: 93 db
Chambered mufflers are used for many different things, but they are most common to cars and trucks. They allow for more sound to be produced, but it doesn’t change the effect of the engine. They can be loud, so it’s important that you use one that is high quality in order to avoid problems with your engine’s performance. It’s also important to keep in mind that chambered mufflers are illegal in some states because of the noise they produce.
So why are chambered mufflers so loud? It is simply because it is designed that way, nothing more. You can’t really hear the difference between a muffler that has been made with a chambered chamber vs one that does not have one, unless you are listening very closely indeed.