4g15 racing camshaft

Types of 4g15 racing camshaft

A 4g15 racing camshaft is a popular aftermarket upgrade for many 4G15-powered vehicles, particularly those used in motorsport or performance-oriented settings. It is designed to optimize airflow through the engine's cylinders, allowing for better fuel combustion and, ultimately, more power output. However, the camshaft alone will not deliver significant performance gains. Other engine modifications, such as upgrading the intake and exhaust systems, are necessary to complement the camshaft and improve overall engine performance. The 4g15 camshaft specs include a lift of 8.5mm, duration of 282, and a 3-degree advance. The 4g15 racing camshaft has different types, as listed below:

• Single overhead camshaft: The 4G15 SOHC camshaft has one camshaft that operates all four engine valves per cylinder. It is a simple and cost-effective design that allows for accurate valve timing control. The 4G15 SOHC camshaft is suitable for low and medium-speed engine performance, making it an attractive option for economy and budget performance upgrades.
• Double overhead camshafts: The 4G15 DOHC camshaft has two camshafts per cylinder bank, one for the intake valves and one for the exhaust valves. This design provides precise control over valve timing and allows for more aggressive cam profiles, resulting in better engine performance at high speeds. The 4G15 DOHC camshaft is suitable for high-speed and high-performance engine applications.
• Solid and roller 4g15 racing camshaft: Solid 4g15 racing camshafts are machined from a single block of metal. They are known for their durability and stability under high-speed operations. Roller 4g15 racing camshafts have rollers at the tip of the lobes that reduce friction with the valve lifters, resulting in less wear and tear on the camshaft and valve train components.
• Hydraulic and solid 4g15 camshaft lifters: Hydraulic 4g15 racing camshaft lifters use engine oil pressure to operate the lifter and maintain zero lash in the valve train. The hydraulic lifters automatically adjust to wear and thermal expansion, ensuring consistent valve timing. Solid 4g15 racing camshaft lifters require manual adjustment to maintain lash in the valve train. Compared to hydraulic lifters, solid lifters provide better performance and reliability, especially at high engine speeds.

Specifications and Maintenance of 4g15 Racing Camshaft

The following are the specifications and maintenance of the 4g15 racing camshaft.

• Valve Timing

  The 4g15 racing camshaft has a longer duration period that allows the valves to stay open for an extended period. The intake valves open up quickly and close slowly when the compression stroke is approaching. During the power stroke, the exhaust valves close slowly and open quickly. The timing is usually set up to allow better airflow and enhance the engine's performance. A well-timed camshaft is necessary; otherwise, it can lead to engine misfires and decreased power.

• Lift

  The lift of the vales determines how far the valves open and how fast the airflow is. A 4g15 racing camshaft has a higher lift, which allows more air and fuel to flow into the combustion chamber. Lift is measured in millimeters; hence, the higher the lift, the more power the engine produces. The downside to a higher lift is that it can cause the valves to hit the piston, resulting in engine failure.

• Specifications

  The specifications of the 4g15 cam shaft differ depending on the manufacturer. However, the specifications include a duration of 250 to 290 degrees, a lift of 10.5 to 12.5 mm, and a lobe center of 106 to 110 degrees.

4G15 racing camshaft needs proper maintenance to function efficiently and effectively. The following is how to maintain the 4G15 racing camshaft.

• Regular oil changes: The camshaft is made of steel, which is prone to rusting. Therefore, it is essential to keep the camshaft well-lubricated with engine oil. The oil reduces friction between the camshaft and the follower, preventing wear and tear. Regular oil changes prevent the buildup of debris and dirt, which can damage the camshaft over time.
• Follow the manufacturer's maintenance schedule: Adhere to the manufacturer's schedule for maintenance. The maintenance schedule may include routine inspections and changes in parts such as filters, spark plugs, and others. The maintenance schedule ensures that the engine performs optimally and the camshaft functions without any problems.
• Use high-quality engine oil: Use engine oil with high viscosity to ensure the camshaft is well-lubricated. The high-quality oil reduces friction between the moving parts and prevents wear and tear.
• Regularly check the timing belt: 4G15 racing camshafts rely on the timing belt. Therefore, it is important to inspect the timing belt regularly for signs of wear and replace it when necessary. A worn timing belt can lead to the camshaft being out of alignment, which can cause engine damage.

How to Choose 4g15 Racing Camshaft

Business buyers should consider several factors when choosing the 4g15 racing camshaft to meet their needs. They include the following:

• Engine compatibility

  It is important to ensure the camshaft will work well with the existing engine system. Consider factors like the engine's make, model, and year to ensure the specs of the camshaft match up. This will allow for optimal performance without issues.

• Intended use

  Buyers need to think about what the vehicle will primarily be used for. A more aggressive camshaft that provides maximum power may be desirable for racing purposes. On the other hand, a milder camshaft that balances torque and drivability may be better for street use with occasional track days.

• Powerband characteristics

  The powerband of a camshaft determines how the engine will deliver power across different RPM ranges. A camshaft with a broad powerband provides flexibility. However, one with a narrow powerband focuses on maximizing performance in a specific RPM range. This suits specific needs but may cause a loss of power lower down or at the top end.

• Lift and duration

  Certain 4g15 racing camshaft specifications have lift and duration that significantly affect airflow through the engine's valves. Lift refers to how far the valve is opened, while duration is the time the valve remains opened. Higher lift and longer duration can improve airflow and increase engine power. However, they may result in rough idle or decreased fuel efficiency.

• Quality and reliability

  It is advisable to source the 4g15 racing camshaft from reputable manufacturers that meet global standards. The quality of materials and craftsmanship impacts how well the camshaft performs and its durability. A high-quality camshaft will provide consistent, reliable power output over its lifespan.

• Budget and value for money

  Buyers should evaluate the features and benefits of different camshafts concerning their costs. While sticking to a set budget is important, pursuing value for money is vital. This involves considering the expected performance gains, longevity, and potential cost savings in other areas, such as fuel efficiency.

How to DIY and Replace

Replacing the 4g15 racing camshaft can be a complex task that requires a good understanding of engine mechanics. However, with the right tools and instructions, it is possible to do it as a DIY project. Here is a step-by-step guide on how to replace the 4g15 racing camshaft.

Before starting, ensure that you have the following tools:

• Socket set
• Wrench set
• Torque wrench
• Timing belt tool
• Camshaft seal puller
• New camshaft
• New camshaft bearings
• New timing belt
• Oil filter
• Engine oil

The process:

• 1. Prepare the vehicle: Park the vehicle in a well-lit and ventilated area. Disconnect the battery and drain the engine oil.
• 2. Remove the timing belt: Use the timing belt tool to remove the timing belt from the camshaft sprockets.
• 3. Remove the old camshaft: Use a socket and ratchet to remove the bolts holding the camshaft in place. Carefully pull out the old camshaft.
• 4. Install the new camshaft: Lubricate the new camshaft bearings and install them using the camshaft seal puller. Carefully push the new camshaft into the engine block.
• 5. Reinstall the timing belt: Align the timing belt with the timing marks on the camshaft sprockets and the crankshaft. Use the timing belt tool to tension the belt.
• 6. Reassemble the engine: Reinstall any other components removed during disassembly, such as the valve cover and intake manifold. Refill the engine with oil and reconnect the battery.

Start the engine and let it run for a few minutes. Check for any oil leaks or unusual noises.

Q&A

Q1: What is the 4g15 racing camshaft used for?

A1: The 4g15 racing camshaft is a key component in high-performance engines. It controls the timing and duration of the engine's intake and exhaust valves, allowing for improved airflow and increased power output. This camshaft is commonly used in motorsport applications and by automotive enthusiasts seeking to enhance engine performance.

Q2: Can the 4G15 racing camshaft be used in standard road-going vehicles?

A2: While the 4g15 racing camshaft can be installed in standard road-going vehicles, it is primarily designed for high-performance and racing applications. Its aggressive profiles may result in rougher idle, reduced low-end torque, and increased emissions, which could affect drivability and compliance with emission regulations in some regions.

Q3: What are the benefits of upgrading to a 4G15 racing camshaft?

A3: Upgrading to a 4g15 racing camshaft can significantly improve engine performance, especially at higher RPMs. The enhanced valve timing and lift characteristics allow for better airflow, resulting in increased horsepower and torque. This upgrade is particularly beneficial for users engaged in motorsport or those seeking a more exhilarating driving experience.

Q4: What is the 4G15 engine?

A4: The 4g15 engine is a 1.5-liter inline four-cylinder engine developed by Mitsubishi Motors. It is part of the G-series family of engines, which are known for their fuel efficiency and low emissions. The 4g15 engine is commonly used in small cars and has variants that include carbureted and fuel-injected versions.

Q5: Is professional tuning required after installing a 4G15 racing camshaft?

A5: Yes, professional tuning is highly recommended after installing a 4g15 racing camshaft. The new camshaft alters the engine's airflow characteristics, affecting fuel delivery and ignition timing. A proper tuning session ensures optimal performance, drivability, and reliability while minimizing emissions and engine knock risks.