Why are headers are a better choice than an exhaust manifold? As stated above, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. There are some potential disadvantages to using exhaust headers, however, such as noise production. Because they are thinner than manifolds, they naturally produce more noise than their counterpart.
This isn't a huge disadvantage, but it's still something that drivers need to be aware of when choosing between an exhaust manifold and headers. Exhaust Manifolds Typically made of cast-iron, exhaust manifolds are typically included in factory cars and trucks.
Its sole purpose is to transfer the exhaust gases from the engine to the rest of your exhaust system, where they can be expelled. Even though both perform the same function, there are a few key differences between manifolds and headers.
The main difference lies in the way they sound and perform. Which one you end up choosing depends on what you plan on doing with your car. An exhaust manifold is made from cast iron which makes it capable of withstanding high heat and pressure from exhaust gases.
The only problem with cast iron is that it is prone to cracking. Most cars have manifolds installed from factory. However, the downside of having thick walls is that they leave little space for exhaust gasses to pass through. The iron casting also makes the interior rough, which can result in the flow of exhaust gases slowing down. Because the gas flow slows down, a manifold can cause backpressure , and that prevents the exhaust from efficient clearing. Headers are a popular aftermarket part, and they are constructed using stainless steel tubes for each cylinder which makes it highly effective for gases to exit.
The tubes on a header connect to a collector pipe, which is equal in length and smooth. This ensures that the gases reach the collector separately from each cylinder along with the right exhaust scavenging characteristics. Just make sure that your collector pipes are not constricted because that defeats their purpose.
This is perfect if your intention is to increase the engine sound altogether. Uncoated or poorly finished headers will rust over time. Ceramic coated ones, on the other hand, are less prone to rust and corrosion. These headers perform their best in the idle to mid rpm range — perfect if you want your daily driver to get a boost in performance.
Another choice to consider is equal or unequal length headers. Where equal length headers provide consistently great performance, unequal ones provide a deeper rumbling sound and more low-end torque. You only have a single header. Unless you make 2, 2-cylinder headers and run those as you would on a V8, then you cannot have true dual anything on an inline 4 cylinder engine.
I got a civic sir , b16a2, put headers now almost feels like hits vtech early and you can barely notice , Vtech kicking in , is this normal or could there be an issue. Headers my ass. My question is, can i use header shorter type. Put a turbo on it and a change the piston And the connecting rods exactly for turbo set up and put an oil supply to the turbo and back to oil pan.
Ano po ang maganda para sa honda covic97 hesders full exhaust po b na 4 2 1 or 4 1 Ano po ang impact po nito. Ang header ay okay pang daily driving. Mas mararamdaman mo ang power sa mid range. Sa naman, mas maramdaman mo ang power sa high end which is more advantageous kung sa race track ka, mas maingay pa ang tunog.
One more thing, kung sa California ka nakatira, the only choice you have is Its the only CARB legal header available. Ang ay hindi CARB legal. Sana ay nakatulong ito. The explenation on and is it like on golf 1and 2 does that count for carb and fuel injection and the L ,A or G cam and I have 4.
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