Intake Manifold Design

Intake manifolds are designed to promote rapid fuel vaporization during engine warm-up. The exhaust crossover floor of the intake manifold between the inlet gases and exhaust gases has been thinned out with improved thickness control, thereby reducing the time required to get the heat from the exhaust manifold gases into the inlet gases. By adding this additional heat, fuel vaporizes quicker, and leaner air-fuel mixtures can be used, resulting in lower CO emission levels.