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What to consider when choosing an intake manifold?

What to consider when choosing an intake manifold?

Here are some things to consider when choosing or designing the intake manifold: Consider the length of the intake manifold along with the runner of the cylinder head. The cylinder head intake port is a part of the runner system so the “total” length should be factored into the equation.

Why do intake manifolds have a lower torque curve?

While this design allows for much more air to enter the cylinders, the runners are shorter which allows for higher rpm operation. When using the single plane, you will usually see a dip in the torque curve around 3,500 rpm. This is because at lower rpm, inside the single plane plenum the air is going crazy.

Where is the throttle body on an intake manifold?

With the use of port fuel injection or direct port injection has created much flexibility in designs. Most EFI long runner designs have the throttle body at the end of the intake manifold. This location of the throttle body does offer an economical design with benefits of idle and part throttle capability.

What kind of intake manifold does a Mustang use?

The 5.0L Mustang intake manifold was a huge success back in the day. The length of the runners along with port fuel injection made this intake the idea choice for hot street applications. Some EFI long runner manifolds incorporate what is known as an air containment sleeve.

What’s the difference between the most powerful intake manifolds?

One need only look at the peak power difference between the least and most powerful intakes in this shootout was more than 60 hp. Imagine that, an intake swap that yielded 60 extra horsepower, but that isn’t the whole story. While peak power gains offer enticing Internet banter, changes in the entire power curve are the real story.

Is it possible to get 60 hp from an intake manifold?

The answer is, obviously, yes. One need only look at the peak power difference between the least and most powerful intakes in this shootout was more than 60 hp. Imagine that, an intake swap that yielded 60 extra horsepower, but that isn’t the whole story.

What kind of intake manifold do I need for a 4.8L truck?

Intake manifolds are combination specific, meaning that the ideal intake for an 8,000-rpm stroker combination would be different than one designed for a stock 4.8L truck motor. If you’re looking for the “best” single intake on the market for every application—such an animal does not exist.

Which is the best intake manifold for the LS1?

The Weiand handily outperformed not only the LS1 but all of the factory manifolds, including the Trail Blazer SS. Like the Speedmaster, the torque was down compared to the Trail Blazer SS manifold, but we soon discovered that only two other intakes would best the peak torque offered by the impressive Trail Blazer SS.

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Ruth Doyle