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Posted on April 25, 2022 (Updated on July 9, 2025)

Why is it called a manifold?

Space & Navigation

Nomenclature. The term “manifold” comes from German Mannigfaltigkeit, by Riemann. In English, “manifold” refers to spaces with a differentiable or topological structure, while “variety” refers to spaces with an algebraic structure, as in algebraic varieties.

What defines a manifold?

manifold, in mathematics, a generalization and abstraction of the notion of a curved surface; a manifold is a topological space that is modeled closely on Euclidean space locally but may vary widely in global properties.

Who invented the manifolds?

Timeline to 1900 and Henri Poincaré

Year Contributors Event
1895 Henri Poincaré Simplicial homology.
1895 Henri Poincaré Fundamental work Analysis situs, the beginning of algebraic topology. The basic form of Poincaré duality for an orientable manifold (compact) is formulated as the central symmetry of the Betti numbers.

Why is Figure 8 not a manifold?

Another way to think about it (from the formal definition) is that from a line (segment), you can find a continuous one-to-one mapping to a closed loop. An interesting point is that figure “8” is not a manifold because the crossing point does not locally resemble a line segment.

What is the main purpose of manifold?

Featuring a series of tubes, the intake manifold ensures that the air coming into the engine is evenly distributed to all the cylinders. This air is used during the first stroke of the combustion process. The intake manifold also helps cool down the cylinders to prevent the engine from overheating.

Can a car run without a intake manifold?

Yes, it will; but it won’t run as well as it would with an exhaust manifold. It should idle just fine. There shouldn’t be any valve damage alluded to above if the vehicle isn’t driven very far.

Is plenum same as manifold?

The Intake Plenum is a part of your vehicle’s intake manifold. The primary function of the intake manifold is to transfer the fuel-air mixture to the cylinders. During the fuel distribution, the pressure in the manifold should be higher than that in the cylinders during their intake stroke.

Do longer intake runners make more torque?

Short exhaust and short intake runners in general produce the best high end torque. Longer runners in general will produce more low end torque.

What is plenum runner?

Intake runners are the actual tubes that channel intake air from a reservoir, known as a “plenum” to the intake ports. The image above shows a typical intake manifold, on which the runners connect to the plenum individually, as opposed to branching off from a single exit point as was usual on older manifolds.

What is the difference between an intake and a plenum?

Video quote: But that doesn't mean that they won't make power we have had several of these that will make over 500 horsepower a single plane intake manifold has a single open plenum that sees all eight cylinders a

What’s an airbox in a car?

An airbox is an empty chamber on the inlet of most combustion engines. It collects air from outside and feeds it to the intake hoses of each cylinder. Older engines drew air directly from the surroundings into each individual carburetor.

Where are Edelbrock manifolds made?

Edelbrock’s Southern California R&D Tech Center is in Cerritos, CA, with the Edelbrock Sand Cast and Permanent Mold Manufacturing foundries located in San Jacinto, CA.

What is a throttle body?

The throttle body is an important part of your air intake system that controls the air flowing into your engine. It’s located between your air intake and engine manifold where fresh air is pulled into the engine for the combustion process.

Why does the throttle body get dirty?

Here’s how the throttle body gets dirty. When an engine shuts down, hot exhaust gases and unburned fuel float to the top of the engine. As the vapors bake from the engine heat, they form black sooty carbon deposits inside the throttle body.

What does a dirty throttle body do?

When the throttle body gets dirty, it has a direct effect on how smoothly the engine operates. Signs indicating a problem include rough idling, jumpy or sluggish acceleration, poor fuel economy, and stalling. With the use of a throttle body cleaning product, the dirt and debris buildup are easily removed.

Does a throttle body add horsepower?

In addition to increasing acceleration performance, larger throttle bodies can also boost overall horsepower. This gives the engine increased power and torque, which may be helpful in situations such as towing. Commonly, adding an aftermarket throttle body can increase engine power by 15 hp to 25 hp.

Why do ITBs make more power?

Aside from a snappier throttle response, one of the main benefits of running ITBs is the additional horsepower that can be gained with them as more air is able to enter the engine at a quicker rate due to the air inlets being placed on each cylinder.

How much HP do cold air intakes add?

How Much HP Does a Cold Air Intake Add? When upgrading your air intake, truck owners can expect an increase of between 5 to 15 horsepower, though this number can be higher or lower depending on your make, model, engine size, and type of intake.

Does throttle body increase mpg?

Consider having your throttle body cleaned to help improve fuel mileage. Ensuring your spark plugs are changed as often as recommended can also help increase your fuel mileage. An old or warn spark plug will not produce a powerful spark which will lead to poor combustion and a lack of power.

Do you need a tune after throttle body?

For pre-2005 vehicles, a tune is not required with the addition of a new throttle body. For 2005+ vehicles, a tune is recommended for throttle body changes & updates.

Is it better to replace a throttle body or clean it?

While throttle-body cleaning is good preventative car maintenance, it should also help engine drivability. In fact, if you’ve noticed a rough idle, stumbling initial acceleration or even stalling – all when the engine is fully warmed up – a dirty throttle body could be the culprit.

Does injector cleaner reduce fuel consumption?

Fuel injectors are responsible for spraying a mist of fuel into the engine. The finer and more controlled the spray, the better the fuel economy. Add a bottle of fuel injector cleaner to your gas on your next fill-up. Doing this once a year can significantly improve your fuel injector’s performance.

Which gives more mileage carburetor or fuel injection?

Which gives more mileage carburetor or fuel injection? Fuel injection system makes complex calculations which include fuel temperature, throttle response, etc to ensure the right amount of fuel is injected into the combustion chamber. This way the use of fuel is a lot more effective resulting in better mileage.

Does replacing fuel filter increase mpg?

As fuel prices are so high, many drivers are finding ways to improve fuel efficiency. Replacing a clogged fuel filter is a great place to start. Changing your fuel filter avoids unnecessary strain on the fuel system, improving fuel efficiency.

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