streetdragon
Member
- :
- mazda 3
is the aem intake for the s model only or will it fit both.
Ok I realized what you ment now.....it's there but once it drops and vilm changes it aids in the 7 psi increase in the intake charge....making it realy nice and....fast...reason I cruise on a gear till 4000 and punch it for passing(laugh)The variable tumble control system (VTCS) was created to help emissions at low RPMs. The valve closes part of the intake path, increasing the velocity of the intake charge. The faster intake charge then has the inertia to swirl around the combustion chamber and more thoroughly mix with the fuel for combustion. Intake charge speed is less of an issue on valves that do not open very much, but recall that Mazda's VVT does not vary valve lift. At low RPMs, VTCS is needed to compensate for this. The valve does not completely disengage until 3750rpm. Mazda claims this technology is used to improve emissions, not torque.