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In order to understand how the the Airaid throttle body spacer improves torque and fuel efficiency, you must first understand
how an internal combustion engine works.
Now that we have a better understanding of how an internal combustion engine works we will explain how the Airaid throttle body
spacer improves fuel efficiency.
The Airaid Throttle Body Spacer has the "Helix Bore" design. This "Helix Bore" is similar to the rifling of the inside of a gun
barrel. It has grooves cut into the hole the air passes through that are designed to force the air into a rotating motion.
When the rotating motion begins it causes the fuel that is also entering the intake of the engine to mix thoroughly. This mixing effect
is the equivalent of when you mix koolaid. If you just pour the sugar, drink mix, and water into the pitcher without stirring it you
will have a very weak, watered down mixture. You can still drink it but at the end you will have a lot of left over sugar. When the gas
and air enter the cylinder and they are not mixed thoroughly it will still burn, but you will have a lot of unburned fuel left over that
is expunged to the exhaust. Since the throttle body spacer mixes the fuel and air it burns more of the fuel and thus creates a more efficient process.
This also helps increase performance on the low end torque as well. When you depress the gas pedal from idle it forces a large amount
of fuel into the intake.
This over abundance of fuel brings with it the the non-combustable portion of the gas, the fluid, and the combustable
portion of the gas. Without something thoroughly mixing the fuel and the air into the intake a large portion of the fuel is expunged out the
exhaust and has to be forced out of the cylinder without being burned. If the fuel and air are thoroughly mixed when they enter the cylinder
a larger portion of the fuel will be ignited and less fuel will leave the exhaust.
With the two animations adjacent you can see the intake with the airaid throttle body spacer gives a better fuel to oxygen mixture.
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