Jasonfrom RM Racing
Sean,
Here is some information.
The air intake with the cold air option (CAI) is designed to work in a specific order and manner. First off, cold air that is forced into a mass air flow sensor is absolutely the best period. Second is cold air, third is a lot of hot air, and fourth is the factory air box with the factory intake. Our system is designed to incorporate the first and third.
When the vehicle is at a standstill or air speed to the CAI scoop is less than 13 mph, our system pulls air through the (path of least resistance) foam filter, attached to our low restriction intake tube under the hood. In this situation the filter has 1.67 more flow than the factory air box and intake. It is hot air but the increased volume out weighs the temperature burn reduction. (For every 10 degrees reduction in air intake temperature is equal to 1 HP) When the vehicle starts to move or air is forced into the strategically placed CAI scoop the intake becomes pressurized, forcing air into the intake track (filter, intake tube, mass air flow sensor, throttle body, intake manifold, etc.) At 13 mph (wind speed in the tube) the filter no longer pulls air in from the outer surface of the filter but from the inverted cone in the interior of the filter. At 45 mph the filter now becomes a pressure release valve of sorts. The vehicle in stock form cannot use anymore cylinder pressure so the excess gets expelled through the filter. The concept and design of this system was tested during more than 13 hours of dyno time at Pro Dyno in Tempe, AZ and countless hours at our shop and on a flow bench.
Jason Cobb
RM Racing
866-767-2231
