00' 5.3 Siverado - EGR block off - yes or no?
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00' 5.3 Siverado - EGR block off - yes or no?
I used the search button but couldn't come up with a definitive answer so here goes...
I have a stock 5.3 with the air injection and EGR systems. I am about to start installing my ebay headers in anticipation of my BB tune on Mon and wanted to get some opinions.
Please advise whether or not I should block off my EGR valve? From what I have read, this feature actually conserves fuel? If I block it off, will I gain performance at the cost of fuel efficiency?
Right now, I plan to turn off EGR/air/rear 02 sensors and rear emission systems monitoring in the tune on Mon.
I'm aware of the smog issues and I have "worked" them out.
Thanks in advance fellas.
I have a stock 5.3 with the air injection and EGR systems. I am about to start installing my ebay headers in anticipation of my BB tune on Mon and wanted to get some opinions.
Please advise whether or not I should block off my EGR valve? From what I have read, this feature actually conserves fuel? If I block it off, will I gain performance at the cost of fuel efficiency?
Right now, I plan to turn off EGR/air/rear 02 sensors and rear emission systems monitoring in the tune on Mon.
I'm aware of the smog issues and I have "worked" them out.
Thanks in advance fellas.
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I too know very little if any about the "mod" so please don't make your decision on my post alone.
Did some light reading to what Google's search provided and read a few "facts"...
1. EGR does not engage when idling.
2. EGR does not engage at WOT.
I believe there was a few more fun facts but those 2 caught my eye. If your looking for a performance answer, as to what I found/read, there is no need to block off the EGR as it will not hurt or add performance. GL
Did some light reading to what Google's search provided and read a few "facts"...
1. EGR does not engage when idling.
2. EGR does not engage at WOT.
I believe there was a few more fun facts but those 2 caught my eye. If your looking for a performance answer, as to what I found/read, there is no need to block off the EGR as it will not hurt or add performance. GL
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A member here once wrote that by sooting up the inside of your intake and blowing hot exhaust gasses back into the cylinders that the EGR system somehow makes the engine run cooler and more efficient. whatever. I have taken the egr system off of all 3 Chevy engines I have owned when I added headers to them.
#5
A member here once wrote that by sooting up the inside of your intake and blowing hot exhaust gasses back into the cylinders that the EGR system somehow makes the engine run cooler and more efficient. whatever. I have taken the egr system off of all 3 Chevy engines I have owned when I added headers to them.
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Thanks all for your replies. I ended up just running a bolt through fitting until I devise (have fabbed) a permanent block off. Also disabled the air injection system.
Does anyone have any suggestions as to how to rid the motor of that? I just took it off, the valve is still there, looking to get rid of that also, what did you guys use to block that off?
Does anyone have any suggestions as to how to rid the motor of that? I just took it off, the valve is still there, looking to get rid of that also, what did you guys use to block that off?
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There is a stock plug for it. Can't remember where I got mine or part number or anything like that.
I do remember that I put my IAT sensor there. I still have the intake I will look at it tomorrow if I remember. I'd look now but it is in storage.
I do remember that I put my IAT sensor there. I still have the intake I will look at it tomorrow if I remember. I'd look now but it is in storage.