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3 Designs Of High Performance Exhaust Mufflers Basically, mufflers serve 3 purposes: absorption and dissipation; exhausting combustion gases; and conserving the engine’s power. The design of a muffler matter more than the material that makes it.
Although there are modern terms associated with performance exhaust systems for cars e.g. multiple baffle, turbo, and bullet, they all fall under 3 categories described in this guide. Reactive Mufflers Also known as restrictive mufflers, these exhaust systems reduce the noises that an engine produces. They use technical chambers which have perforated tubes that separate and nullify particular tones. Most reactive mufflers have very small openings that do excellent work in cancelling noises but their scavenging abilities are low. Their downside is that they can cause back pressure and they are therefore made for small diameter exhaust systems.
Absorptive Mufflers The design of these mufflers causes an interaction of the sound with the packing materials. The sounds are converted to heat energy through friction hence the sound absorption ability of the packing materials determine quality. These mufflers became popular during the late 50s and even today are still common with car owners who like tantalizing exhaust sounds. Combination Mufflers This is an integration of the reactive and absorptive designs. Reactive mufflers produce very low exhaust absorptive designs may produce undesirable sound frequencies and drone. tones while An assimilation of the two designs work well so that deeper tones are generated through absorption and drone is eliminated by the reflection feature.
This integrated design applies the principle of broad band This integrated design applies the principle of broad band noise cancellation. The sound waves diverge to the exterior core of the muffler and become cancelled. The remaining waves are absorbed in the exterior thermal barrier which dissipates radiant heat energy. Technically, performance truck exhaust mufflers do not give the engine extra power when installed but they can maintain its power hence improving the efficacy of the whole system. Adding a muffler to a car also minimizes wear and tear of the engine elements through reduction of temperatures and enhancing the flow of exhaust gases.