EGR Delete vs EGR Blanking
How Does the EGR system work?
The Exhaust Gas Recirculation or EGR system works by recirculating a small amount of exhaust gas back into the engine's intake manifold, mixing it with the fresh air and fuel mixture. This process lowers the combustion temperature inside the engine by diluting the mixture and reducing the amount of oxygen, which significantly decreases the formation of harmful nitrogen oxide or NOx emissions. The flow of exhaust gas is controlled by an EGR valve, which opens and closes, this is controlled by the Engine Control Unit or ECU and is determined by factors such as engine speed and engine load. On many modern engines, inparticular diesel engines, the exhaust gases pass through a cooler first before entering the intake manifold and then mixing with the fresh air, the gas dilutes the oxygen in the cylinder and acts as a heat sink, slowing the combustion process and lowering temperatures.
What is an EGR Delete?
The EGR Delete process involves the complete removal of the EGR system from the vehicle. The EGR is responsible for reducing emissions by recirculating a portion of exhaust gases into the intake manifold. However there are some compelling benefits associated with an EGR Delete:
- Improved engine performance and power: By stopping the recirculation of exhaust gases allows for cleaner fresh air to pass through the intake, leading to improved combustion and increased power output.
- Enhanced Fuel Efficiency: With cleaner air in the intake, this leads to more efficient combustion and a better air/fuel ratio, therefore your vehicle can achieve better mileage, helping save on fuel costs in the long run.
- Reduced Carbon Deposits and Maintenance Costs: Removing the EGR minimises the carbon deposits in the intake manifold and valves, this reduces the risk of carbon build-up which can lead to expensive maintenance and repair issues down the line.
Understanding EGR Blanking
EGR blanking is the partial modification of the EGR system, this is where certain components are blocked or modified to restrict the flow of exhaust gases, one common method is fitting EGR blanking plates between the exhaust gas outlet and the EGR valve, effectively blocking the flow of exhaust gases. The blanking plate is a physical barrier that prevents the flow of exhaust gases, these plates are designed to fit specific vehicle models and can be easily installed and removed.
Conclusion
In conclusion, understanding the differences between the 2 methods is crucial when considering modifications to your EGR system. Each method offers its own set of benefits and considerations. When deciding which method to take for your vehicle it is important to consider vehicle manufacturers warranty, desired performance improvements and fuel efficiency gains, as well as long term maintenance and costs. Make an informed decision ensures you get the most out of your vehicle's performance, therefore consult with professionals like MSK Remapping to fully understand the decision you want to make for your vehicle.
