Quote:
Originally Posted by ericktran93
what is the best and worth your money cold air intake.
what brand?
short ram intake or cold air intake?
help !
|
Your stock intake is a CAI type.The CAI phrase is just another way that the aftermarket labels their products to give the buyer the idea they are getting something different then stock when their in fact their not.Unless you plan to do some other significant things to your engine that would demand a different type of intake ,just stick to the Honda developed one you have because you will not gain any more overall power from changing it when one considers the effect such a change has on the engines entire power band. If your into a louder sound , you can either plug the path to the resonator on your stock intake or remove it completely. If you have a VTEC Prelude, you can get a 5th gen Type S intake which will enhance throttle response at low and mid rpms and maybe a little gain in power.
SH DRIVERS WRITE UP ON INTAKES:
When it comes to fuel economy the technology in the stock intake has you covered in a way that no aftermarket intake can. At low rpms, the stock intake acts to speed up the air flow which is best for low speed, fuel efficient operation.It does that by using 2 funnels, or velocity stacks as they are called ,and a valve that cuts off one of the air inputs to the air intake.
1: The air input to the intake goes thru a velocity stack that directs the air into the intake pipe in a orderly and efficient way that acts to speed up the air flow.Also this part of the air intake is in the bumper so the the intake can draw in cool dense air and so that the intake piping can be lengthened to the correct length for air tuning purposes.

2: Next the air goes down two air paths with one of those paths controlled by a valve .At low rpms a valve at the input to the air intake pipe closes one of two air paths to the rest of the intake piping. In the the same way that putting your thumb over a hose causes the water to speed up ,closing one of the intakes two air input passages acts to speed up the air flow which is ideal for efficient low rpm performance.Above around 3900 rpms. the air intake valve opens up given the engine a low resistance to air flow that the engine needs at mid/high rpms.
3: The air then travels thru a section of pipe and then thru another velocity stack to the air filter element.
4: Form the air filter and in the case of the Type S Intake thru another funnel and in the USDM intake just on a plane section of pipe and on to the throttle body.
5: At low rpms the throttle body when at cruising speeds is only partially open, which like the air valve at the entrance to the intake ,acts to speed up air flow in the same way.So in effect the valve at the input to the air filter is like a second throttle valve placed in a location where it can act to speed up the air flow.
Keeping the velocity and momentum of the air up as it goes thru the intake piping helps the engine to produce power in an efficient manner at low rpms which leads to lower fuel cost for the user.
In conclusion having a device that works to provide for what the engine needs be it low or high rpm operation is what the stock intake is good at and its hard to believe why anyone would want to replace it .
JDM Prelude Type S Dynamic Air Intake Kit 220HP BB6 H22A S Spec