So if an old 110 engine w/flat pistons has a blanked EGR & no cat, would it not have a lower Cylinder-head temp than the Euro version w/domed pistons, no EGR & no cat?
And we are assuming that hot exhaust gases are taking the place of a greater amount of cooler non-EGR mixtures that have a higher potential for combustion. So isn't it a wash w/ or wo/EGR?