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pros and cons of EGR


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#1 aekasit2

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Posted 02 April 2012 - 03:06 AM

What are the pros and cons of EGR? Should I disable EGR, and if so, what else must I adjust?



Negative effect on the engine?


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http://www.ehow.com/...ble-egr-gm.html

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#2 GMstrong

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Posted 03 April 2012 - 05:52 AM

youll get little less mpg on the highway,thats it as far as cons.Pros you dont really gain anything,depending on your truck if its 96+ youll get a SEL and have to tune it out of the computer.
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#3 DaveH71

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Posted 03 April 2012 - 06:11 PM

EGR is strictly for emissions. It sucks in a portion of the exhaust as it leaves and sends it back into the combustion chamber to be burnt again to help lower emissions. How exactly would it lower your mpg?

#4 waumo1

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Posted 04 April 2012 - 06:51 PM

I wouldn't bother to disable the EGR unless I was building an all out performance engine. The EGR purpose is to lower the burn temperature and reduce NOx emissions. Obviously it will not increase performance but as long as it is working OK the effect is minimal.

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#5 Easytide

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Posted 06 April 2012 - 07:47 AM

Todays engines are designed to run on very tight parameters, including operating temp. The EGR is heavily factored in and the engine relys on this for cumbustion cooling, It,s no longer simply an emissions issue, I wouldnt disable EGR unless you want to run the risk of burnt valves and /or holes torched thru your pistons.




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