What does size and shape of the exhaust and intake ports affect?

What is the difference between bridgeport and streetport on a Mazda rx7?

There are several different types of porting that can be done to a rotary engine. Each shop will port differently but the basic understanding by everyone is that a streetport is a very mild porting of the intake and exhaust ports whereas a Bridgeport is very aggressive. Keep in mind if you want your rotary engine ported it will affect the operation of it. Rotaries have no valves so all of their intake and exhaust timing is controlled by the shape and size of the ports. Generally the larger you go porting the more power you'll have in the top end, but your low end torque and idle will suffer. Generally bridgeporting is only suggested for high boost cars that aren't driven on the street.

Why deflected shape of piston in 2-stroke engine?

In a 2 stroke engine the piston itself is the intake/exhaust valve, instead of having separate valves as in the 4 stroke. The odd shape of the piston is the location of these valves.

How do you port Harley Davidson heads?

Porting Harley Davidson heads involves removing material from the intake and exhaust ports to enhance airflow and improve engine performance. Typically, this process includes using specialized tools like grinders and sanding rolls to reshape the ports, focusing on smoothing the walls and optimizing the shape for better flow dynamics. It's essential to maintain the integrity of the ports and avoid excessive material removal, which could weaken the heads. After porting, thorough cleaning and inspection are crucial to ensure no debris remains that could interfere with engine function.

Does a rotary engine use a reed valve?

No, a rotary engine does not use a reed valve. Instead, rotary engines, like the Wankel design, utilize a triangular rotor that moves within an epitrochoidal housing, creating distinct chambers for intake, compression, combustion, and exhaust. The intake and exhaust processes are controlled by the shape of the rotor and the housing, eliminating the need for reed valves typically found in piston engines.

What is the purpose of a car valves and what is the difference between a 12 valve and a 16 valve engine?

Close one hole of your nose and try to breath in. Feel any difference. Coming back to the subject. By increasing the # of valves you get the below features. a) better combustion chamber shape, resulting in better combustion, resulting in better power and fuel economy. There are intake valves and exhaust valves. On the intake side, the intake valve opens which lets the fuel/air mixture into the combusion chamber. At some point (measured in degrees of crank rotation) the intake valve closes, the air/fuel mixture is compressed and ignited by the spark plug. Then the spent mixture exits the cylinder when the exhaust valve opens. Valve configuration varies somewhat, but regardless of how many valves there are there will always be at least one intake and one exhaust valve. Some cylinder heads have 2 intake and 2 exhaust valves which is what is described as the 4-valve per cylinder setup. As the first two responders pointed out, you have intake valves, which let air in a diesel, or air plus gas in a gasoline engine, into the cylinder; and exhaust valves, which let the spent gases leave the cylinder. One important thing multiple valves can do for you is to let the spark plug be put in the center of the cylinder, from where the flame front can radiate evenly through the chamber. A 16-valve engine (if it's a 4-cylinder) has two intake and two exhaust valves. A 16-valve engine could also be an 8-cylinder engine with 1 intake and 1 exhaust valve per cylinder. A 12-valve engine has two intake and one exhaust valve (if it's a 4 cylinder engine). a 12-valve engine may also be a 6-cylinder engine with 1 intake and 1 exhaust valve per cylinder. evan was here

Does the shape of the lungs affect the way they work?

Yes, the shape of the lungs can affect their function. The lungs are designed to maximize surface area for gas exchange, and variations in shape can influence their efficiency. For instance, conditions like emphysema can alter lung shape and reduce surface area, impairing oxygen intake. Additionally, anatomical differences, such as in individuals with congenital anomalies, can also impact respiratory function.

What is a exhaust donut?

A puff of smoke that's in a shape of the exhaust pipe A gasket/seal that is shaped like a donut. They are used between the manifold and the exhaust pipe.

How geography helped shape the English colonies?

There were rivers,natural ports,and the farmland was good.

What does a egr look like on a 1998 Ford Festiva?

On a 1998 Ford Festiva, the EGR (Exhaust Gas Recirculation) valve is a small, cylindrical component typically located on or near the intake manifold. It features a metal body with an electrical connector and a vacuum line attached. The valve may have a small diaphragm and a spring mechanism inside for regulating the flow of exhaust gases back into the intake system. It's usually mounted with a couple of bolts and can be identified by its distinctive shape and connections.

What is a radical camshaft?

First of all, the camshaft's job is to open and close intake and exhaust valves. It's made up of teardrop shaped lobes, and when the lobe turns away, the valve spring closes the valve. This is precisely timed, so the lobes are aligned just so. On a radical camshaft, the lobe shape is exaggerated so the valves open wider and longer, packing more air into the intake, and letting more out the exhaust. The result is more airflow through the engine, and more power.

Why deflected shape of piston in 2 stroke engine?

Well, isn't that just a happy little question! The deflected shape of the piston in a 2-stroke engine is designed to help optimize the combustion process. By carefully shaping the piston, engineers can ensure efficient fuel intake, compression, and exhaust, all working together in harmony like a beautiful painting coming to life. Just like adding a touch of color to a canvas, every detail in the design of the piston serves a purpose to create a masterpiece of an engine.

How does the shape of water affect its behavior?

water doesnt have a shape