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If GM produced a 427 engine for a production car, could it meet CAFE standards? Would cylinder deactivation at cruise be enough?
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why else do you think they are bringing out crappy little cars like the aveo and cobalt? with high mileage cars like those that gives GM some elbow room to squeak by with a gas hog like a 427.
chances are they will scale back the fuel trim and run it pretty lean at cruise. i don't think they'll start cutting fuel to cylinders, in an engine that big you would have to up the fuel delivery in the remaining cylinders.
it would be better if they could control the mixture for each individual cylinder the way the M5's V10 does. (it measures the ionic charge of the exhaust gasses after it fires and a control unit on top of the ignition coil figures out the fuel trim for that cylinder's next firing sequence. so baisicaly you have 10, 50hp engines in one block
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