TORQJNKY
Active Member
I recently completed my engine build and deleted my EGR in the process to make clearance for the return fuel system using a 2.9L Whipple. The EGR is in the way of the rear fuel fitting if you use aftermarket fuel rails and fuel line, so I deleted it and have received a lot of question on how to do it. It's very simple, so here goes:
Disconnect your battery
Ensure your tune is updated to turn your EGR Off
Remove the EGR Valve and EGR Tube
Cap the EGR Valve Opening on the blower and header or exhaust manifold using an EGR Delete kit. You can get these from one of the forum vendors (Lethal, VMP etc...)
EGR Delete installed. Blower capped and header capped.
On the EGR Valve is a sensor called the SIP (Supercharger Inlet Pressure) Sensor. You will have to remove the sensor from the EGR housing. It is clipped on and has one small electrical fitting. Be carful not to crack or break the body of the SIP sensor in the process of removing it. It senses boost/vacuum, so if you crack it, it's useless.
Remove the two vacuum hoses off the EGR shown here:
Carefully remove the SIP Sensor from the EGR. Once you have the SIP Sensor removed, you will cap one of the two vacuum ports, put some shrink wrap over the small electrical plug and attach a piece of vacuum line to the other vacuum port like shown. The vacuum line will go to the supercharger.
Install a small NPT vacuum port on the supercharger. NOTE: On a Whipple install, the vacuum line that goes to the boost bypass actuator (gets plugged at the blower) because it's built into the Whipple boost bypass actuator. On the TVS that vacuum line has to stay in tact. You will have to reuse the three way rubber vacuum fitting off the side of the blower and plug one port or just run a T-fitting off the side of the blower. One port will go to the SIP sensor and the other to the boost bypass actuator.
Now that the SIP Sensor is removed, the electrical plug covered, the appropriate vacuum port capped off on the SIP sensor and appropriate vacuum line attached, re-connect it to the wiring harness as shown:
I used a piece of vacuum line long enough to tuck the SIP sensor back down behind the blower and in between wiring harness and fuel lines.
I have zero drivability issues, it makes plenty of room for an aftermarket fuel system and cleans up the EGR off the side of the blower. I may have a mile or two reduction in gas mileage, but my car is an E85 car anyway, so gas mileage sucked to begin with. Hope this helps. If you need any more pics or info, let me know. Thanks!
Disconnect your battery
Ensure your tune is updated to turn your EGR Off
Remove the EGR Valve and EGR Tube
Cap the EGR Valve Opening on the blower and header or exhaust manifold using an EGR Delete kit. You can get these from one of the forum vendors (Lethal, VMP etc...)
EGR Delete installed. Blower capped and header capped.
On the EGR Valve is a sensor called the SIP (Supercharger Inlet Pressure) Sensor. You will have to remove the sensor from the EGR housing. It is clipped on and has one small electrical fitting. Be carful not to crack or break the body of the SIP sensor in the process of removing it. It senses boost/vacuum, so if you crack it, it's useless.
Remove the two vacuum hoses off the EGR shown here:
Carefully remove the SIP Sensor from the EGR. Once you have the SIP Sensor removed, you will cap one of the two vacuum ports, put some shrink wrap over the small electrical plug and attach a piece of vacuum line to the other vacuum port like shown. The vacuum line will go to the supercharger.
Install a small NPT vacuum port on the supercharger. NOTE: On a Whipple install, the vacuum line that goes to the boost bypass actuator (gets plugged at the blower) because it's built into the Whipple boost bypass actuator. On the TVS that vacuum line has to stay in tact. You will have to reuse the three way rubber vacuum fitting off the side of the blower and plug one port or just run a T-fitting off the side of the blower. One port will go to the SIP sensor and the other to the boost bypass actuator.
Now that the SIP Sensor is removed, the electrical plug covered, the appropriate vacuum port capped off on the SIP sensor and appropriate vacuum line attached, re-connect it to the wiring harness as shown:
I used a piece of vacuum line long enough to tuck the SIP sensor back down behind the blower and in between wiring harness and fuel lines.
I have zero drivability issues, it makes plenty of room for an aftermarket fuel system and cleans up the EGR off the side of the blower. I may have a mile or two reduction in gas mileage, but my car is an E85 car anyway, so gas mileage sucked to begin with. Hope this helps. If you need any more pics or info, let me know. Thanks!
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