Quote:
Originally Posted by Wall$treet
So what is the downside cylinder shut down? Vettes seem to have been enjoying it for years successfully with gobs of HP, throttle response and great mileage?
Problem is that I believe the two approaches to cutting mpg, being TT and cylinder deactivation really depend on what kind of driving you do. Atleast from my basic understanding.
Cylinder deactivation is not great for around the city driving benefit. The benefit is had mostly highway cruising when you do not go above 3k rpms.
However in the city, it is tough to really stay at 2500-3k and you would be above or below the range of "shutoff" so many times per second, not sure any savings would be had at all.
Seems like TT is a more "usable" way of cutting mpg and still allowing normal driving behavior in addition to mpg savings in all types of driving.
maybe I am wrong, this is just a guess?
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If it was independent of rpm's, cylinder deactivation would make more sense to me..