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How Much HP Does A Cam Add?

Everyone wants their vehicle to achieve the most optimal capacity to get to the locations they need quickly. So over time, more and more different ways to improve the engine’s performance, thereby unlocking the speed limit for the car, began to appear. 

So, How Much HP Does A Cam Add?

The impact on the camshaft is one of the most popular choices that many people decide to apply to their vehicles. This part will help you increase the engine’s horsepower, but not all types of axles will increase the number equally.

Structure And Working Principle Of Camshaft

Working Principle Of Camshaft

To understand the performance-enhancing capabilities, you’ll need to know its construction and how it works first.

#Structure of camshaft

The camshaft is inherently a mechanical part of the gas distribution unit that we can find in vehicles using internal combustion engines such as cars. 

This part has a main structure of a connecting rod that is precision machined to every detail to help open and close the valve more flexibly.

The basic camshaft structure consists of many parts, including the intake cam lugs, exhaust cam, and shaft collars. This shaft is usually of metals with high bearing capacity and flexibility, such as white cast iron and steel.

#Working principle

The operating principle of the camshaft is also quite complicated, so today’s article will only cover it briefly.

Theoretically, this unit operates with the help of the crankshaft at approximately half the speed of the crankshaft. So the driver of the crankshaft will affect the way the camshaft works, creating different operating patterns.

The three most common camshaft drive types are camshaft drive by gear transmission, camshaft drive by chain transmission, and belt drive, also known as belt transmission.

Does Camshaft Affect Power?

The answer is definitely yes because the impact of the camshaft on the vehicle’s performance is through the mechanism that makes the valve opening and closing more flexible and precise. With this adjustable air valve opening and closing, the camshaft allows the vehicle to capture more air through each cycle.

That increases the horsepower compared to the standard performance offered by the manufacturer, and you can expect to be able to enjoy the performance of two quality models, the Nissan 350z vs 370z 72, in your vehicle.

We all know that the engines of most cars today operate on the principle of igniting a gas mixture, thereby creating pressure on the pistons and causing these parts to move.

But to create enough pressure, the mixing of fuel such as gasoline or oil with air must achieve the correct ratio for the new combustion phenomenon to occur and as a premise for the expansion of the air to eventually increase pressure in the cylinder. 

So if the composition of the atmosphere rises in favor of flammability, then, of course, the cycle will be more robust, and the efficiency will increase dramatically.

How Much HP Does A Cam Add?

How Much HP Does A Cam Add

The most efficient camshaft models available today can often add 10 to 20 hp to the engine’s actual performance. Although this is not a very high number, this change will help the car have better acceleration.

In addition, the impact of the camshaft on the car engine will not cause fuel consumption because this part itself does not affect these liquids but only stops at the level of affecting the inlet gas flow. 

The rest, the injection process, and the prime are not affected by the camshaft.

However, each different type of camshaft stage will possess additional performance enhancement capabilities, and below is the necessary information you will be interested in.

And of course, the bad ones can’t achieve the same performance.

#1 camshaft add.

Stage 1 camshafts will provide an extra part of our engine’s performance, thereby helping the car accelerate faster. But that may not be enough to change our experience too much. That’s why we have stage 2 camshafts, a significantly upgraded version of stage 1 camshafts.

Intake and exhaust system upgrades and ECU overhauls from stage 1 units will increase the available engine power by 20 to 25% in your vehicle. With this 25%, of course, the difference becomes a lot more noticeable.

#2 camshaft add.

If 25% of stage 2 can’t satisfy you, stage 3 with up to 40% more power than the standard-setting from the manufacturer will be the last choice if you want to use camshafts to increase the vehicle’s performance. Of course, we will still have to upgrade from stage 1 to stage 2 before reaching stage 3, which is also the final stage.

To get such an impressive performance boost, not only did the parts need to be repositioned, but additional transmission holes were also needed to be drilled.

And of course, this job requires us to work carefully and research carefully in advance. If you’ve done complex work like fixing exhaust leak at flange (how to fix exhaust leak at flange), perhaps these operations will be somewhat more straightforward.

Frequently Asked Questions(FAQ’s)

1.How Much Does It Cost To Replace The Camshaft?

The cost of an aftermarket camshaft depends on the brand and type of vehicle you own. Usually, the price will range from $200 to $600. However, if you use high-end cars like Volvo, this number will increase significantly.

2.How do Camshafts and Crankshafts work together?

Both parts will be to each other thanks to Timing belts, a wire-shaped element that helps synchronize the operation of these two components.


Through today’s article, we hope that you got the correct answer to the question of how much hp does a cam add. From there, choose the most suitable changes for your vehicle.


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