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Omega General Help / Re: Omega 0-60 test: will these two factors make a difference
« on: 22 April 2014, 12:39:59 »
EGR is part of a strategy to reduce NOX emissions ONLY and of no use for anything else. In the UK, MOT stations can't even measure NOX, so it remains part of the type approval of the vehicle when new.
inducing exhaust gas into combustion does affect the flame properties - basically it reduces peak combustion temperatures, which is where the NOX is formed. But it also reduces performance quite markedly.
EGR is used only when needed during the EC drive-cycle used for the type-approval test. Mainly during the cold-start part. Most of the EGR use during normal running is to keep the system working and not for an emissions purpose.
hope this helps
inducing exhaust gas into combustion does affect the flame properties - basically it reduces peak combustion temperatures, which is where the NOX is formed. But it also reduces performance quite markedly.
EGR is used only when needed during the EC drive-cycle used for the type-approval test. Mainly during the cold-start part. Most of the EGR use during normal running is to keep the system working and not for an emissions purpose.
hope this helps
