Honda prelude exhaust headers

Types of Honda Prelude Exhaust Headers

When it comes to the Honda Prelude, the exhaust headers, also known as exhaust manifold, is a key component that collects exhaust gases from the engine cylinders and directs them into the exhaust pipe. These headers are designed to improve engine performance by decreasing back pressure and increasing the flow of exhaust gases. There are several types of Honda Prelude exhaust headers, each with its own design and performance characteristics:

• Shorty Headers: The short exhaust headers are designed with short tubes that lead directly into the exhaust system. They are typically used in vehicles where space is limited. The short exhaust headers offer a modest improvement in performance, especially in low-end torque, making them a popular choice for street driving.
• Long Tube Headers: Long tube headers are designed with longer tubes that extend further into the engine bay before connecting to the exhaust system. These headers are designed to maximize exhaust scavenging, which improves engine performance across a wider RPM range. Long tube headers are particularly beneficial for high-performance engines and are commonly used in racing applications.
• Tri-Y Headers: Tri-Y headers combine the design elements of shorty and long tube headers. They feature a unique arrangement of three tubes merging into two, creating a y-shaped collector. This design improves exhaust scavenging and optimizes torque delivery. Tri-Y headers are ideal for applications where a broad powerband is desired, making them suitable for both street and track use.
• Stainless Steel Headers: Stainless steel headers are designed for durability and corrosion resistance. The use of stainless steel in their construction ensures that these headers can withstand high temperatures and exposure to harsh environmental conditions. Stainless steel headers are available in various designs, including shorty and long tube configurations.
• Hollow Headers: Hollow headers are designed with a hollowed-out exhaust manifold. This design reduces the weight of the headers and improves heat dissipation. Hollow headers are particularly beneficial for racing applications, where every ounce of weight reduction can lead to improved performance.
• Racing Headers: Racing headers are high-performance exhaust headers designed for maximum power output. They typically feature large diameter tubing, smooth transitions, and minimal restrictions to optimize exhaust flow. Racing headers are often used in competitive motorsport, where every bit of horsepower is critical to success.

Specifications and Maintenance of Honda Prelude Exhaust Headers

• Material

  The Honda Prelude exhaust header is made of stainless steel, which is strong and does not rust. Stainless steel is heat resistant, so it can handle the high temperatures from the engine. Cast iron is another material used for Honda Prelude exhaust headers. Cast iron is good at keeping the heat in, but it is heavier than stainless steel.

• Pipe Diameter

  The pipes on the Honda Prelude exhaust header are sized just right for each model. They are large enough to let the exhaust flow out quickly without being too big and losing power. The diameter is usually between 1.5 to 2 inches (38 to 51 mm) for most models. This size helps the engine run better and sound good too.

• Number of Pipes

  Honda Prelude exhaust headers have 4 to 6 pipes that match the number of cylinders in the engine. Each pipe collects the exhaust from one cylinder and brings it to the front of the header. More pipes mean better exhaust removal, which improves engine performance.

• Flanges

  Flanges are flat plates at the ends of the pipes that connect the exhaust header to other exhaust parts. They need to be very strong because they hold everything together. The flanges on the Honda Prelude headers are made of steel or aluminum, depending on the model. They are usually 1/2 to 3/4 inch (12 to 19 mm) thick to handle the stress.

• Gaskets

  The gaskets seal the connections between the exhaust header and other pipes. They prevent exhaust leaks, which could make the engine lose power. Honda Prelude exhaust headers use multi-layer metal gaskets or graphite gaskets. Metal gaskets stand up to high heat and pressure, while graphite gaskets are flexible and good for sealing.

• Coating

  Some Honda Prelude exhaust headers have a special coating on the outside. This coating makes them last longer by protecting against rust. It can also stand up to high temperatures without peeling off. Headers can be coated with heat-resistant paint or a ceramic coating that is very smooth and keeps heat in.

Like all vehicle parts, the exhaust header requires maintenance. However, it is important to note that the Honda Prelude exhaust header is a low-maintenance part. Here are a few tips on how to keep it in good condition:

• 1. Check the exhaust header for signs of rust or damage. If the header is cracked, it will need to be replaced.
• 2. Make sure all the bolts and nuts are tightened properly. Loose fasteners can cause exhaust leaks.
• 3. Inspect the gaskets to see if they are worn out. Worn gaskets should be replaced right away.
• 4. Keep the exhaust header clean. A dirty header can make the engine run less efficiently.

How to Choose honda prelude exhaust headers

Choosing the correct exhaust headers for the Honda Prelude requires careful consideration of several factors.

• Understand the Engine Configuration

  The Honda Prelude came with several different engine options in various markets and years. For example, the H22A is a 2.2L inline-4 engine, while the H23A is a 2.3L inline-4 engine. They are all variations of the inline-4 configuration. So, one has to understand the engine configuration and exhaust layout to know which headers will fit correctly. This includes knowing things like how many cylinders are in the engine, which side of the car they are on, and how the exhaust pipes are arranged.

• Consider Performance vs Daily Driveability

  Performance headers can improve a Honda Prelude's performance by allowing exhaust gases to flow more freely and exit the engine faster. This can result in more power and better acceleration. However, they sometimes make the engine run louder. Some headers are designed to maximize power for racing, while others provide a good balance of power and a pleasant driving experience for daily driving.

• Check the Material, Design, and Coating

  Honda Prelude exhaust headers are made from different materials, such as stainless steel, mild steel, and cast iron. Stainless steel is very durable and resistant to rust, while mild steel is more affordable but not as long-lasting. One's budget and how well the material will hold up to heat and chemicals from the exhaust are things to consider. The design also affects how well the headers work. Some have special coatings that help them last longer or make them look nicer.

• Understand the Exhaust Flow Design

  The layout of the exhaust pipes after the headers is just as important as the headers themselves. Some headers work better with specific exhaust pipe arrangements. The Honda exhaust system is designed to reduce pollution and noise, which can limit how much better the headers allow exhaust to escape. One needs to choose headers that work well with the entire exhaust system for optimal results.

• Selecting the Right Flange Size

  Headers connect to the exhaust pipe using a flat piece of metal called a flange. The size and shape of the flange need to match the exhaust pipe for a tight seal to prevent leaks. One should find out the flange size needed based on the exhaust system being used.

• Compatibility with Other Exhaust Components

  One needs to make sure the headers will fit well with other parts of the exhaust system, such as the catalytic converter and muffler. This is important because it ensures everything connects properly without gaps or cracks that could cause problems.

• Legal Compliance and Emissions Considerations

  Some headers can be very good for performance, but they might not work well to reduce pollution. It's crucial to check the rules where one lives about how clean the exhaust needs to be. Some places are stricter than others about pollution. One needs to ensure the headers meet the legal requirements for emissions.

• Budget

  Quality headers can range from affordable to high-priced, depending on the brand and features. Setting a budget beforehand helps narrow down options. One also needs to consider any extra costs for modifying, installing, and tuning the vehicle for optimal header performance.

How to DIY and Replace Honda Prelude Exhaust Headers

Here is a simple guide on how to replace exhaust headers in Honda Preludes:

• Tools Needed: To replace the exhaust headers, these tools will be needed: Socket set, Torque wrench, Ratchet extensions, Pliers, Screwdrivers, Gasket scraper, New gaskets, Header bolts, Torque angle gauge, Jack and jack stands, Wheel chocks, Engine hoist or cherry picker, Stand for engine hoist, Safety glasses, Mechanic gloves, shop towel, and safety glasses.
• Step 1: Prepare the vehicle. The Honda Prelude should be parked on level ground. The wheels should be chocked, and the parking brake engaged. The vehicle should be lifted using a jack, and jack stands should be placed securely under the vehicle, following the jack manufacturer's instructions.
• Step 2: Disconnect the battery. The battery negative terminal should be disconnected using a socket wrench to prevent any electrical short circuits or issues during installation.
• Step 3: Remove any components that obstruct access to the exhaust headers. This can include air intake ductwork, electrical connectors, vacuum hoses, and coolant hoses. The specific components to be removed may vary depending on the Honda Prelude model and header location.
• Step 4: Drain the cooling system. To drain the cooling system, the lower radiator hose should be disconnected from the radiator. Also, make sure the coolant is collected in a clean container for reuse or proper disposal.
• Step 5: Disconnect the exhaust pipes from the exhaust headers. This step may require removing exhaust hangers and/or heat shields and using a socket wrench to remove the header bolts.
• Step 6: Remove the old exhaust headers. First, the header bolts should be removed using a socket wrench, starting from the header closest to the engine block. After that, the headers should be carefully removed from the engine block, taking care not to damage the gasket mating surfaces or drop any debris into the engine.
• Step 7: Install the new exhaust headers. First, the new headers should be aligned with the exhaust ports on the engine block. After that, the header bolts should be tightened using a torque wrench, following the manufacturer's specifications and in a crisscross pattern to ensure even gasket compression.
• Step 8: Reconnect the exhaust pipes to the exhaust headers. This step may involve reinstalling exhaust hangers and/or heat shields and tightening the bolts or nuts to the specified torque.
• Step 9: Reinstall any components that were removed in Step 3. These components may include air intake ductwork, electrical connectors, vacuum hoses, and coolant hoses.
• Step 10: Reconnect the battery. The battery positive terminal should be reconnected first, followed by the negative terminal. Ensure that the connections are clean and secure to prevent electrical issues.
• Step 11: Start the engine and check for any exhaust leaks, strange noises, or issues related to the new headers. Ensure that all components are properly installed and functioning.
• Step 12: Lower the vehicle. The jack should be used to lift the vehicle slightly off the ground, and the jack stands should be removed carefully. The vehicle should be lowered completely, and the jack should be removed.

Q&A

Q: What is the difference between exhaust headers and exhaust manifold?

A: Generally, exhaust headers and exhaust manifolds serve the same purpose of collecting exhaust gases from the engine cylinders and directing them to the exhaust pipe. However, exhaust headers are usually preferred in high-performance engines because they provide better airflow and reduce exhaust back pressure, which can lead to increased power. They also tend to be made of smoother, less restrictive pipes compared to manifolds.

Q: Do exhaust headers make a car faster?

A: Yes, by improving the flow of exhaust gases and reducing back pressure, which allows the engine to breathe more easily and potentially increasing its power output.

Q: Can exhaust headers fit any Honda Prelude?

A: No, exhaust headers are designed for specific engine types and sizes. When purchasing, ensure they are compatible with the Honda Prelude's make, model, and engine type.

Q: What are the benefits of installing exhaust headers?

A: The main benefits include increased horsepower and torque, improved throttle response, and a more aggressive exhaust note. The headers can also improve engine cooling by dissipating heat from the engine bay.

Q: Is it necessary to tune a car after installing exhaust headers?

A: While it's not always necessary to tune a car after installing exhaust headers, doing so can optimize performance and ensure the engine runs efficiently with the new headers.