12/28/2023 0 Comments Manifold on a car![]() ![]() Headers are designed to offer low restrictions to gas flow, so they can rapidly extract exhaust through extremely effective scavenging. This is particularly true in high-performance automobiles, where maximizing horsepower is a priority over absolute efficiency. Some vehicles use an exhaust header in place of traditional manifolds. Just as a manifold needs to scavenge as much gas as it can, it also must act as a funnel that concentrates and then uses exhaust pressure to expel gases with the force required to exit the system. The oxygen sensor works while the gases collected by the engine exhaust manifold are expelled to the rest of the exhaust system, where they shoot through the catalytic converter and muffler before leaving via the exhaust tip. This sensor checks the level of oxygen in the exhaust gas, and then transmits that information to your vehicle’s engine computer, where it’s used to shape the air/fuel mixture in each cylinder. Most engine exhaust manifolds feature an oxygen sensor mounted near their exit. Some exhaust manifolds are also engineered to concentrate the heat of the gases so that they burn off any remaining fuel that might linger after combustion. While the pressure inside the cylinder is strong enough to push out most of the gas, the manifold itself has to be designed in such a way that it sucks as much exhaust from the cylinder as possible. Once the fuel has been burned, the cylinder’s exhaust valve opens up to allow the waste gases to escape, sending them out into the manifold. The engine exhaust manifold in your car is linked directly to the cylinders where gas and oxygen mix together before being ignited by a spark plug. Let’s take a quick look at how these manifolds work. The more oxygen a motor can burn, the more power it can make, so exhaust manifolds are crucial to your vehicle’s operation. Have you ever wondered what does an exhaust manifold do? This important component is considered part of the “lungs” of a engine, in that it exhales the gases generated during the combustion process and sends them out through the tailpipe to make way for fresh oxygen in each cylinder.
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