Quote:
Originally Posted by Matthewy8
one of many intrests currently is EGR. I think there should be a way to increase egr at certain times to decrease pumping losses and improve economy without causing performance to suffer
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I'd rather leave EGR alone for that matter. One thing I've been considering is to increase the intake valve opening time, like it's done in hybrids, but with a supercharger in order to overcome the dynamic discompression. It has been done in stationary/industrial and marine engines since the 30s or 40s, and Mazda did it in some version of the 929 full-size sedan.