Quote:
Originally Posted by drmiller100
ummmmm,,,,, well, no.
it takes a certain amount of oxygen molecules to make a certain amount of power. If the molecules are warmer, they take up more space, so you have to give more throttle position to get the same amount of power.
But when done, it still takes the same number of molecules to make a certain amount of power.
If the molecules were colder to begin, expansion ratio would be higher, making the engine more "efficient" = more power with identical amounts of fuel and air.
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Ummmmmm, yes. You answer the question yourself.
More throttle = lower pumping loss = greater efficiency.
Is it a huge change?
No, but, apparently it is measurable and eventually enough "mouse nuts" add up to a substantial difference.