Truck Сustomizers Engine What Does a Cam Do to a Truck?

What Does a Cam Do to a Truck?

What Does a Cam Do to a Truck

The camshaft plays a pivotal role in enhancing a truck’s performance. Camming a truck, or upgrading its camshaft, can optimize the timing of valve openings and closings, which in turn can improve the engine’s power output and efficiency. While the article elaborately discusses the function and importance of the camshaft, there is room to explore what does camming a truck do in terms of actual performance enhancement, cammed truck meaning in the automotive enthusiast community, and practical insights into what is camming a truck and does camming a car make it faster.

When we talk about what is a cam on a truck, we are referring to the camshaft, a critical component of a truck’s engine. The camshaft is responsible for controlling the opening and closing of the intake and exhaust valves. This process allows the right amount of air and fuel to enter, and the exhaust gases to exit the engine at the appropriate times. It is fundamental to the truck’s engine performance and efficiency.

Design and Operation of The Camshaft

The car engine is a very complex mechanism, one of the most important elements of which is a camshaft, which is part of the timing. The accurate and smooth operation of the camshaft largely depends on the normal operation of the engine. One of the most important functions in the operation of a car engine is the camshaft, which is part of the timing mechanism (timing). The Best cam for vortec provides the in- and out-strokes of the engine.

What Does a Cam Do to a TruckDepending on how the engine is designed, the camshaft may have an up or down valve arrangement. Today, the timing mechanism with the valves in the upper position is more common. This design allows for faster and easier maintenance, including adjustment and repair of the camshaft, which will require camshaft parts. Today I’m going to tell you what a camshaft does to your truck.

Does Camming A Truck Make It Faster?

In most cases, yes, but it depends on the model of the truck and which custom cam you use. With that said, aftermarket cams are designed for high-end performance, so you can typically expect to experience faster speeds after camming a truck. However, it’s essential to understand how to cam a truck properly to achieve the desired performance outcomes and ensure that the engine operates efficiently and safely.

How Does A Camshaft Work?

Structurally, the camshaft is located in the camshaft of the cylinder block. The crankshaft gear or chain drives the camshaft. When the camshaft rotates, the cams act on the valves. This process will only occur correctly if there is strict compliance with the order of the engine cylinders and with the timing of the camshafts.

In order to ensure that the correct valve timing is set, special setting marks are placed on the drive pulley or on the camshaft gears. In addition, it is necessary that the camshaft cams and crankshaft crankshaft crankshaft in strictly defined positions in relation to each other. When the installation is done according to the marks, it is possible to achieve compliance with the correct sequence of strokes – the order of the engine cylinders, which in turn depends on the location of the cylinders themselves, as well as on the design features of the crankshaft and camshaft.

What Does a Cam Do to a Truck

Construction of A Camshaft

There are different materials from which camshafts are made. Forged camshafts have mainly caught on in the automotive industry. But there are also cast camshafts, also called “hollow cast shafts”. There are also new camshafts that are just beginning to appear in the automotive world. I am talking about tubular steel tubular shafts.

Like all parts of a car, engineers try to make the camshaft as light as possible when designing it without sacrificing quality or reliability. That goes for all other moving engine components and other parts of the car as well. Reducing the moving masses in the engine has a much greater impact on the overall efficiency of a vehicle’s powertrain than reducing the weight of other car components, for example.

Engine Duty Cycle

The engine duty cycle is the period during which the intake and exhaust valves are opened once each. Typically, the period takes two revolutions of the crankshaft. During this time, the camshaft, whose pinion has twice as many teeth as the crankshaft pinion, makes one revolution.

Where Is the Camshaft Located?

The location of the camshaft may vary depending on the engine design. The operating space of the camshaft can be located either at the bottom, at the base of the cylinder block, or at the top, directly in the cylinder head. At the moment, the upper location is considered the most successful. Since it facilitates access to the timing gear for replacement and maintenance.

The camshaft is secured by several axial bearings. The camshaft is driven by linking it to the crankshaft via a chain drive and a belt drive. The design of modern vehicles can be provided with several camshafts, depending on – how many valves work with each of the cylinders. Budget car models are equipped with one camshaft, and more expensive and technologically advanced – several.

What Does a Cam Do to a Truck

Typical Camshaft Failures

A camshaft wears out during engine operation and all kinds of breakdowns occur. They are related to the appearance of mechanical defects or poor-quality lubrication. The most typical breakdowns are

  • Excessive cam wear. Cam wear and tear leads to a knocking sound in the camshaft, both when starting and when the engine is running;
  • Bearing failure;
  • Breakage of one of the shaft elements;
  • camshaft deformation;
  • disturbance of lubrication process due to low-quality engine oil and different impurities;
  • lack of lubrication.

The occurrence of any of these problems does not lead to an instant car breakdown, but if you do not pay attention to them, the load on the other nodes and elements of the engine increases. The camshaft repair is made depending on the complexity of the resulting failure – or replacement of the shaft as a whole or one of the elements of the timing mechanism – bearings, seals, etc. It is best to start with the original catalog to select parts for replacement or repair of the camshaft.

Thus, the main elements of a camshaft are the cams, the number of which is an engine without a phase change mechanism corresponds to the total number of valves (both inlet and outlet). The cams have a complex, drop-shaped profile; as the cams run in and out of the tappets, thereby providing drive to the valves. Due to the characteristics of the cam profile, not only the opening and closing of the valves is achieved, but also keeping them open for a certain time, overlapping according to the phases, etc. So now you too know how a cam affects your truck.


In summary, the camshaft is integral to a truck’s engine performance, dictating the efficiency of air and fuel intake as well as exhaust emission. Camming a truck involves upgrading to a high-performance camshaft, leading to potentially faster speeds and enhanced towing capacity. The process requires precision and, often, professional adjustment to ensure compatibility and performance gains. A cammed truck signifies a level of customization for specific performance objectives, making it a coveted term among truck enthusiasts. With the right selection, installation, and tuning, camming a truck can indeed make it faster, unlocking a new level of performance from the existing engine setup.

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