Quote:
Originally Posted by 2000neon
...This is the most efficient way to do it, and even in these applications, cutting 2 cylinders from a V8 does not result in 25% more fuel economy, because there are energy losses in the system.
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Yes, like piston and ring friction losses and so on.
If you check out engines that have used cylinder cutout, the economy gain probably less than 10%. And this is for a V-8 switching to four cylinders on the highway.
I don't typically follow this closely, because the gains are not as large as lean burn, which I have in the Insight.
The lean burn gain is more like 20% or so.
Jim.