Toyota INNOVA EGR Deletion Kit

TOYOTA D-4D "EGR Deletion Kit"

Dikutip dari WIKIPEDIA,

"EGR deletion in diesel engines is considered justifiable by a wide range of people. Although removing the EGR system results in increased NOx emissions, it will reduce engine out emission of hydrocarbon emissions, particulates and carbon monoxide. Exhaust gas recirculated back into the cylinder does increase engine wear as carbon particulate wash past the rings and into the oil..."

"... a fair number of car owners disconnected their EGR systems in an attempt for better performance and some still do. The belief is either EGR reduces power output, causes a build-up in the intake manifold, or believe that the environmental impact of EGR outweighs the Nitrous Oxide emission reductions. Disconnecting an EGR system is usually as simple as unplugging an electrically operated valve or inserting a ball bearing into the vacuum line in a vacuum-operated EGR valve."

"Adding EGR to a diesel reduces the specific heat ratio of the combustion gases in the power stroke. This reduces the amount of power that can be extracted by the piston. EGR also tends to reduce the amount of fuel burned in the power stroke. This is evident by the increase in particulate emissions that corresponds to an increase in EGR. Particulate matter (mainly carbon) that is not burned in the power stroke is wasted energy."

EGR dalam kondisi terpasang,