Cars · Electronics
IAB
Intake Air Butterflies a valve that opens and closes to switch between two available passages in the intake manifold.
Adapted from pgmfi.org wiki
Intake Air Butterflies - a valve that opens and closes to switch between two available passages in the intake manifold. This is done to allow the use of a longer runner at low RPMs for increased torque and a short runner at high RPMs for more power. Found on GSR and H22A intake manifolds.
Credits and source
Authors Anonymous PGMFI contributor
Source Adapted from IAB on pgmfi.org wiki. Licensed under CC BY-NC-SA 1.0.