Forward flow with his own hands

If you want to add a little power and give the engine of your car a low bass sound, try the forward flow. Direct-flow mufflers are quite simple in design, so if you prefer, you can make a forward flow with his own hands. For the production of forward flow, you can use regular old muffler, two pipes of different diameters and filler or absorbent noise. Forward flow first takes hot gases from the engine and promotes the flow of air. A variety of gases (sulfur dioxide, nitrogen oxide, hydrocarbons, carbon dioxide, etc.) have a high temperature and high speed, therefore building forward flow and the pipe must be heat-resistant. From the old muffler to cut the wall and remove all the "insides". Then take a pipe of smaller diameter (it should match the old pipe muffler) and make holes in the place where the pipe will be included in the muffler. A pipe with holes weld a second tube (1 m long. And with diameters of 20 cm), inserted into the old building and make them on both sides. Top of the muffler must turn in a fire-retardant insulation, pipe wrap on top of which a sheet of stainless steel. At each end and along the length should be an overlap of 5 cm followed by a wrap and zavaltsevat sidewall. The final touch: the ears welded to the holder and install a silencer on the seat. When the car owner decided to change the exhaust system on his several reasons: - the desire to increase the horsepower for a few horsepower. Experienced professionals with forward flow can not add more than 15 engine horsepower - to give the motor a noble "Bass", with the contents of the muffler can select the desired timbre - brag to their friends the new upgraded muffler. The main thing is that the new exhaust system has been implemented correctly, because all the car exhaust system tuned to work with the factory muffler. Replacing the standard muffler ram especially popular among fans of speed. The car is not only fast, but also unique. There are so-called sport exhaust system. Low bass sounds can be obtained not only through the straight tube, but also increases the diameter of the pipe near the exit of the muffler. A sound-absorbing synthetic fiber with "banks" will be able to suppress the high frequencies. In sports exhaust systems, mufflers are often established to replace the so-called "spider". In form and order intake pipe connections, they differ significantly from the standard exhaust systems. More sophisticated model of resonance in the form of two cones reduces the gas pressure. On the power of the engine affects the resonance. Due to a resonance decreases the pressure in the chamber, he draws gases from the combustion chamber and allows the camera to fill the other gases, while the standard forward flow has resisted the exhaust gases, reducing engine power. For fans of this car is hardly suitable, since it is impossible to go through the city because of the high sound pressure (over 120 decibels), while officially permissible limit 100 dB. Not for all standard - it is louder than the sound, the better. The larger engine displacement, more efficient use of forward flow. For an ordinary car, it is better to set the "bank" for the sport - more streamlined design. The disadvantages of forward flow can be attributed not only sound and negative reactions of others, with forward flow significantly increases fuel consumption. But these little inconveniences do not affect the desire to fans of extreme sports to make your car unique.