whats the benifits of deleting egr valve

[87grandnat]

just got my RJC powerplate in today, it says if you want to use your EGR to drill a hole in it for it, what is the benifit of not using the EGR, my car is a daily driver looking for mid to high 12 sec. 1/4 times would anyone recommend that i not drill the hole for this?, whats the EGR do? thanks for any help

 

[gofstbuick]

EGR system funnels a portion of the spent exhaust gases back into the combustion system. Cooling peak combustion temps. The solenoid is activated by temp, throttle postion and specific gear. It will not operate during warmup, or you will encouter a stumble. The same holds true for idle. Also will operate in third or fourth gear. Will not operate at full throttle and from what I've seen, anything more than 6psi of boost. On a street engine, it helps to control detonation by cooling combustion temps. IMHO, just drill the hole, unless you're using an extender chip or a chip that does not use EGR. Most chip burners will take some timing out of their chip to compensate for lack of EGR.

 

[scottyb]

Even if you are skeptical about the EGR function, one thing is true: it is operated by vacuum. Under boost, no vacuum, no EGR function - it is closed.

Drill the hole. The EGR does no harm. Not drilling may cause harm. Timing is advanced slightly during EGR operation. No EGR may cause cruise knock. Also, the function of the EGR is to cool combustion, and that's good.

 

[87grandnat]

ok thanks for the info

 

[bruce]

http://www.t6p.com/forums/showthread.php?t=686