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Exhaust Muffler Fiberglass
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Modifying your exhaust system on your Honda Civic is one of the most cost effective solutions to adding horsepower and torque. The exhaust system is made up of the exhaust manifold(header), downpipe, catalytic converter, muffler, and exhaust tip. Since we are discussing Honda Civic cat back exhausts we will be concerned with the piping and muffler choice.
There are several options when it comes to Honda Civic cat back exhausts. You could buy a direct bolt-on kit from one of the several exhaust system manufacturers. You also could purchase a system from a local muffler shop. Each choice has distinct advantages and disadvantages.
To understand why its necessary to upgrade to a Honda Civic cat back exhaust, I'm going to use an analogy. Its all about exhaust escape velocity and exhaust flow capacity. Imagine a water hose. If you take off the spray nozzle the water will flow slowly, but it will flow out at more volume. If you attach the nozzle the water will flow faster, but volume will decrease. In order to make good power from a Honda Civic cat back exhaust you are going to want to find the perfect balance between velocity and flow. This is where your Honda Civic cat back exhausts piping size comes into play.
Honda Civics utilize a small four cylinder engine for power production. This means that for naturally aspirated applications(no forced induction) you do not need piping any larger than 2.25 inches. If you go any larger you will notice a decrease in bottom end power. Larger piping is like taking the nozzle off of the water hose. Higher exhaust flow, but decreased velocity.
The muffler that is used in your Honda Civic cat back exhaust also effects total power gained. You may choose to go for a glasspack, which is a canister stuffed with fiberglass to reduce noise. These type of mufflers flow extremely well, but they are extremely loud. You may draw unwanted attention from your local law enforcement officers.
Honda Civic cat back exhausts sometimes employ other canister style mufflers that use a combination of baffles and fiberglass to reduce noise. This is the most common choice of Honda Civic tuners. These type of mufflers give your Honda Civic that signature unmistakable Honda four cylinder exhaust tone.
Another choice is to have no muffler at all! This will provide you with the best flow, however the noise will be almost unbearable to those outside of your vehicle. I would only recommend doing this if you were going to use your Honda Civic for off-road use only, such as drag racing or autocross.
Honda Civic cat back exhausts come in many different forms and fashions. Choosing the correct one will set your Honda Civic apart from all of the others. Remember to shop around and consult other Honda Civic tuners to help you make a good buying decision.
The author Garland Robinson is a die-hard automobile nut. He especially loves Hondas.
His undying obession with the Honda Civic has driven him to create an entire website based on them.
Check it out @ [http://hondacivic.car-performance.net]
Marine Exhaust Systems - How They Work
Marine exhausts systems are an important and often overlooked part of a marine engine. Most vessels have a 'wet' exhaust system. Salt water is injected at the riser - the outlet for exhaust from the exhaust manifold. This mixture of exhaust gas and water is then passed through a series of bends until it exits the boat, preferably at the stern.
Exhaust gases mixed with salt water create a highly corrosive compound. This is why exhaust systems are commonly made using non-corrosive components such as nitrile rubber reinforced hose (brown - not green - stripe), galvanized steel, fiberglass or plastic. The purpose of these components, which vary in size and shape depending on the engine size and layout of the engine room, is to prevent hydraulicing of the engine. This is caused when an engine has filled with salt water which has entered via the exhaust and can cause extensive damage if left for more than two hours. Water enters the exhaust from wave action at stern and poor exhaust design. In some ocean conditions, such as a following sea, water can be forced back up the exhaust when the engine is not running. Poorly designed exhausts allow water to flow back and fill the waterlock/muffler box then up the hose into the exhaust manifold, through the exhaust valves and into the combustion chamber. With the engine full of water the engine cannot crank over as it is cannot compress water.
You will know your engine is hydrauliced if it will not turn over - generally after a long sailing period - and you have removed the starter motor and ensured it works. To remove water from inside the combustion chambers, first remove all injectors, crank engine over to blow water out, refit injectors, bleed injector lines, and start. Then leave motor running until exhaust sorted out.
Check to see that the riser is not coked up or corroded - a common problem. To check the exhaust riser remove the exhaust hose from the riser (often a difficult procedure) and look up the pipe to see if it is restricted by exhaust/salt build up. If build up is excessive the riser will have to be removed to check the engine end of the pipe. Coke can be scraped out to provide a short term fix although often the riser will have to be replaced. There are aftermarket systems which vary in quality. Make sure you fit the right design for the application.
Ensure your water-lock is low enough and big enough to hold all the water in exhaust system. Is there a gooseneck or central vertical loop in the exhaust hose at the transom exit? Is there a siphon break and is it functioning properly - no leaking valves?
Exhaust gas is poisonous and can cause sea sickness and headaches. Replace any faulty parts immediately. Use double hose clamps on each joint or, preferably, super clamps, bolt style, and exhaust cement if need be. Hot sections should be lagged with fiberglass tape to prevent burns.
Beware of asbestos lagging. Many older vessels and marine engine installations had exhaust systems that were lagged with asbestos tape and rope. Asbestos sound-proofing was also common in older boats.
About the Author
Chris Miley is an online author and a keen boater. He maintains the website
Marine Diesel Secrets
and the
Pontoon Boat Site
.
How do you repack a motorcycle muffler?
I want to remove the fiberglass packing in my motorcycle muffler. Is it necessary to remove the muffler from the exhaust? Will drilling out the rivets while the muffler is still on the bike, damage it?
Its not necessary, but it will make the job a hell of a lot easier....how are you gonna access the rivets that are on the side of the pipe that is near the bike?? Cant fit a drill in there!
It is really easy to do - Ive done it myself. Make sure you get a repack kit from the manufacturer of the pipe you have on your bike - it will be of the exact measurement you need. Drill out the old rivets, pull the pipe canister off, wrap the new glass around the inner pipe and slip the canister back over it. Line up the old rivet holes and install new rivets. WHAM - new pipe!
Roush Exhaust Brings Growl To 5.0L Engine
LIVONIA, August 3, 2010: The new Ford 5.0L engine in the 2011 Mustang is an amazing performance package. Now, with the addition of the new ROUSH® exhaust for this engine, it can also have the growl and menacing throaty bark that an American V-8 muscle car needs.
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