Performance Camshafts and Vernier Pulleys

Camshafts & Kits: Explained

At Compare.Parts, we understand the importance of every component in your vehicle’s engine. One such critical component is the camshaft. This guide will provide you with a comprehensive understanding of camshafts and kits, their function, benefits, and how to choose the right one for your vehicle.

What is a Camshaft?

A camshaft is a crucial part of your vehicle’s engine that controls the opening and closing of the intake and exhaust valves. It plays a significant role in determining the power and performance of your engine. The camshaft is driven by the crankshaft via a timing belt or chain, and its speed is half that of the crankshaft.

Understanding Camshaft Kits

Camshaft kits are complete packages that include a camshaft and all the necessary components for a successful installation. These kits typically include items such as lifters, springs, timing chains, and sometimes even gaskets. They are designed to provide a convenient, all-in-one solution for upgrading or replacing your vehicle’s camshaft.

Benefits of Upgrading Your Camshaft

Upgrading your camshaft can offer several benefits:

Increased Power: A performance camshaft can significantly increase your engine’s horsepower and torque.
Improved Fuel Efficiency: Some camshafts are designed to enhance fuel efficiency, making your vehicle more economical to run.
Better Engine Sound: A new camshaft can also alter the sound of your engine, giving it a more aggressive, performance-oriented note.

Choosing the Right Camshaft & Kit

When selecting a camshaft and kit, consider the following factors:

Vehicle Type: The right camshaft for your vehicle depends on its make, model, and engine type.
Driving Style: Your driving style and the conditions in which you typically drive can also influence the type of camshaft you need.
Engine Modifications: If you have made other modifications to your engine, you’ll need a camshaft that complements these changes.

Installation of Camshafts & Kits

Installing a new camshaft can be a complex task. It’s recommended to have a professional mechanic handle the installation, especially if you’re not experienced with engine work. However, if you’re a seasoned DIY enthusiast, our camshaft kits come with detailed instructions to guide you through the process.

Why Choose Compare.Parts for Your Camshafts & Kits?

At Compare.Parts, we are committed to providing high-quality, performance-oriented camshafts and kits. We offer a wide range of options to suit various vehicle types and performance needs. Our team of experts is always ready to assist you in making the right choice for your vehicle. Plus, our competitive pricing ensures you get the best value for your money.

Whether you’re looking to enhance your vehicle’s performance, improve fuel efficiency, or simply replace a worn-out camshaft, Compare.Parts has got you covered. Browse our extensive selection of camshafts and kits today and take the first step towards a more powerful, efficient, and enjoyable driving experience.

Frequently Asked Questions about Camshafts & Kits

What does a higher lift camshaft do?

A higher lift camshaft increases the amount of valve lift, allowing the engine to draw in more air and fuel during the intake stroke. This can lead to improved engine performance in several ways:

Increased Airflow: More air entering the combustion chamber can enhance combustion efficiency.
Higher Power Output: With better airflow, the engine can produce more power, especially at higher RPMs.
Improved Torque: A higher lift can also contribute to increased torque, particularly in performance applications.
Enhanced Throttle Response: The engine may respond more quickly to throttle inputs due to improved airflow dynamics.

However, it is important to consider that a higher lift camshaft may require additional modifications to the engine, such as upgraded valve springs and potentially changes to the engine's tuning.

What makes a cam aggressive?

An aggressive camshaft is characterised by several key features that enhance engine performance. These include:

Increased Lift: Higher lift allows the engine to draw in more air and fuel, improving combustion efficiency.
Longer Duration: A longer duration keeps the intake and exhaust valves open for a greater portion of the engine cycle, allowing for better airflow.
Steeper Ramp Rates: Faster opening and closing of the valves can lead to more power at higher RPMs.
Overlap: Increased overlap between the intake and exhaust valves can enhance performance by improving scavenging of exhaust gases.
Profile Shape: The specific shape of the cam lobes can influence how the engine responds at different RPMs, with aggressive profiles typically favouring high RPM performance.

These characteristics contribute to a camshaft that provides more power and responsiveness, particularly in performance-oriented applications.

What are the cons of camming your car?

Camming your car can enhance performance, but it also comes with several drawbacks:

Increased Engine Wear: A camshaft can put additional stress on engine components, leading to faster wear and potential failure.
Reduced Fuel Efficiency: Performance cams often result in lower fuel economy due to altered air-fuel mixtures.
Compromised Driveability: Cams can affect low-end torque, making the car less responsive at lower RPMs.
Noise Levels: Performance cams can increase engine noise, which may not be desirable for all drivers.
Potential Emissions Issues: Altered engine performance can lead to higher emissions, potentially causing issues with regulations.
Cost of Installation: Upgrading to a performance camshaft can be expensive, including parts and labour.
Compatibility Issues: Not all engines are compatible with aftermarket cams, which can limit options.

Do camshafts change engine sound?

Yes, camshafts can change the engine sound. The design and specifications of a camshaft influence the timing and duration of valve openings, which affects the engine's performance and acoustics. Factors that contribute to changes in engine sound include:

Lift and Duration: Higher lift and longer duration can create a more aggressive sound.
Profile: Different camshaft profiles can alter the exhaust note.
Engine RPM: Camshafts designed for higher RPMs may produce a different sound compared to those for lower RPMs.
Engine Type: The overall engine configuration (e.g., V8, inline) also affects how camshaft changes impact sound.

Why do cammed cars sound choppy?

Cammed cars sound choppy primarily due to the characteristics of the camshaft profile. Here are the main reasons:

Lift and Duration: A camshaft with higher lift and longer duration allows more air and fuel into the engine, creating a more aggressive sound.
Overlap: Increased overlap between the intake and exhaust valves can lead to a rougher idle, contributing to the choppy sound.
Idle Speed: Cams designed for performance often require a higher idle speed, which can accentuate the choppy noise.
Exhaust Note: The changes in exhaust flow dynamics due to the cam profile can alter the exhaust note, making it sound more aggressive and choppy.

Does camshaft affect acceleration?

Yes, the camshaft does affect acceleration. The camshaft controls the timing and duration of the engine's valve openings, which directly influences engine performance. Key factors include:

Valve Timing: Proper timing allows for optimal air-fuel mixture intake and exhaust gas expulsion, enhancing engine efficiency.
Lift and Duration: Higher lift and longer duration can improve power output at higher RPMs, which can lead to better acceleration.
Engine Tuning: A camshaft designed for performance can shift the power band, affecting how quickly the engine accelerates.

In summary, the design and specifications of the camshaft play a crucial role in determining how effectively an engine can accelerate.

Does camming a car make it louder?

Camming a car typically involves installing a performance camshaft, which can indeed make the engine louder. This increase in noise is due to several factors:

Increased Airflow: A performance camshaft allows for greater airflow into and out of the engine, which can enhance the exhaust note.
Higher RPMs: Cams designed for performance often operate at higher RPMs, producing a more aggressive sound.
Exhaust System Interaction: The camshaft can change the way exhaust gases exit the engine, potentially amplifying the sound through the exhaust system.

Overall, while camming a car can lead to a louder engine sound, the extent of the increase will depend on the specific camshaft used and the overall setup of the vehicle.

How much does it cost to replace a camshaft?

The cost to replace a camshaft can vary significantly based on several factors, including the make and model of the vehicle, labour costs, and whether you choose an original equipment manufacturer (OEM) part or an aftermarket part. Typical costs include:

Parts: £200 to £1,000
Labour: £300 to £800

Overall, the total cost for camshaft replacement can range from approximately £500 to £1,800. Always consult with a mechanic for a precise estimate based on your specific vehicle.

Do camshafts increase horsepower?

Yes, camshafts can increase horsepower. They play a crucial role in controlling the timing and duration of the engine's intake and exhaust valves. Upgrading to a performance camshaft can enhance airflow, improve engine efficiency, and increase power output. Benefits of a performance camshaft include:

Improved airflow into and out of the engine
Increased torque and horsepower at higher RPMs
Better throttle response
Optimised engine performance for specific driving conditions

However, the extent of the horsepower increase depends on various factors, including the engine type, other modifications, and tuning.

What is the difference between cam lift and cam duration?

Cam lift and cam duration are two important specifications in an engine's camshaft design that affect engine performance.

Cam Lift: This refers to the maximum height that the cam lobe pushes the valve open. It is measured in millimetres and determines how much air and fuel can enter the combustion chamber. Greater lift can improve engine performance by allowing more airflow.
Cam Duration: This is the length of time, measured in degrees of crankshaft rotation, that the valve remains open during the engine cycle. It affects the timing of the valve opening and closing, influencing engine power and efficiency at different RPMs.

In summary, cam lift affects the volume of air and fuel entering the engine, while cam duration influences the timing of the valve operation.

Camshafts & Kits