Quote:
Originally Posted by Dimman
One of their big hurdles is they can't mess with their intake and exhaust events, since they are fixed ports rather than phaseable cams. They have their work cut out for them...
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That's true, although I think that matters more for improving torque at different points in the rpm range than emissions and whatever. Set up the ports for very little overlap, set up intake for high rpm power, low rpm VE goes down and fuel economy goes up. Of course, this is given that they can figure out the rest of the problems first.
Now the little overlap is bad for power, but one of those electric turbo systems could nicely take care of the problem and give efficiency improvements, albeit at higher cost. But we're talking >400hp anyways :P