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Old 01-06-2013, 04:49 PM   #14 (permalink)
mechman600
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Fusion - '16 Ford Fusion Hybrid SE
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Quote:
Originally Posted by kennybobby View Post
The whole concept of EGR has never made much sense to me--pollute the charge air to weaken the power...oh yeah that's a great idea...?
EGR is a good idea.

For emissions it dilutes the charge with inert gas so that it absorbs heat and lowers overall combustion temps, resulting in less NOx produced.

For economy it raises load % (increases throttle angle) at a given power output to reduce pumping losses.
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