Open filter type in the engine bay, or a closed cold air intake. Which one gets the most power increace?
Printable View
Open filter type in the engine bay, or a closed cold air intake. Which one gets the most power increace?
The [B]CAI[/B] (cold air intake) is marginally better, as it is delivering a cold charge of air from outside the car, whereas an open filter
(often referred to as a [B]Short Ram[/B]) delivers an air charge of engine bay temperature, both are better than factory air boxes, but the difference is not night and day.
Typically, the [B]CAI[/B] gives an improvement of 6-9 % and the [B]Short Ram[/B] improve 3-7%.
These improvements vary car to car and are usually not noticeable at lower RPM but at higher RPM where breathing is more critical.
Build an enclosed box with a large pipe that leads to an unrestricted area at the front of the car at the highest point you can. Then connect a ram pod style air filted to the intake and place it inside the box. Best of both worlds.
[QUOTE=crisis]Build an enclosed box with a large pipe that leads to an unrestricted area at the front of the car at the highest point you can. Then connect a ram pod style air filted to the intake and place it inside the box. Best of both worlds.[/QUOTE]
Or just do the first step, and get the best of the best world :)