Interesting Panorama Aritcle - 928 Pioneered Cylinder Shutdown?
09-28-2016, 08:22 PM
#16
Chronic Tool Dropper
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09-29-2016, 11:16 AM
#17
Rainman
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The problem with ALL of the cyl cut designs is they didn't bother to start with a clean sheet. They were variations of kludges glommed on to an existing V8 engine. If an engineer team were given the project to design and build a V8/4 engine from the start, it could be done right. The way to do it is to stop the crank throws and the rods and pistons associated with the cut cylinders. Put a clutching mechanism between the two, and the throttling of both. At least Porsche got the throttling part figured out well.
Could just use a throttling plate at the port to choke all airflow into the dead cylinder...then it's just an air spring with no net work done.
Or BMW valvetronic where lift is variable (down to 0?) for the same effect.
