Popular today are 4-cylinder engines that combine power and fuel efficiency at the same time. Two types of four-cylinder engines are installed on cars, which can have 8 and 16 valves. Let’s take a closer look at what are the features of such power units, what are their advantages and disadvantages and scrap car removal brampton.
Features of eight-valve engines
Eight-valve engines have two valves for each cylinder, one of which is intended for the intake of the fuel-air mixture, and through the second valve the exhaust gases leave the combustion chamber. Such valves are driven by the camshaft, and the camshaft itself is driven by a chain or timing belt. This design of power units is simple and is most often found on budget cars.
One of the advantages of eight-valve engines is their simplicity of design, which provides the necessary reliability, ease of maintenance and repair. Eight-valve engines turned out to be less demanding on the quality of gasoline and engine oil. This allows you to save some money on engine maintenance, and the car owner does not need to constantly think about which gas station can refuel, and which gas station can have low-quality fuel.
If we talk about the disadvantages of such eight-valve engines, then it is necessary to note their somewhat higher fuel consumption rates, worse dynamics, especially when compared with 16-valve engines. Also, such engines require regular manual tuning of the exhaust system, but if you have proper experience, you can perform the entire service yourself.
Features of 16 valve motors
In 16-valve engines, there are 4 valves per cylinder, two of which are responsible for intake and two for exhaust. This is a rather complex design that will require two camshafts at once. However, 16-valve engines have their own advantages that can significantly improve driving comfort.
The advantages of 16-valve engines include their excellent fuel economy, as well as the great power that can be taken from one liter of engine displacement. Unsurprisingly, as automakers are struggling for power ratings, these engines are increasingly being used.
However, as with any design, 16-valve engines have certain disadvantages, including the high production cost of the engine, the complexity of the design, possible problems during repair, as well as increased requirements for the quality of oil and fuel. Such increased requirements for service invariably increase the costs of the car owner for car maintenance.
Let’s sum up
Four-cylinder engines, depending on their design, can be performed with eight or sixteen valves. Each of these designs has its own specific advantages, for example, eight-valve motors are easy to maintain, they are not so demanding on engine oil and fuel. Sixteen-valve engines are characterized by better power and good fuel efficiency, but they are more demanding on maintenance, which can significantly increase the costs of the car owner.