Quote:
Originally Posted by TylerLieberman
I'd hope so, since it effectively has the same displacement of a 4.0L piston engine.
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OMG That is not true. Learn something from a book instead of from a hella stance meet or reddit.
A 10A displaces 1 liter; a 12A displaces 1.2 liters; a 13B displaces exactly 1.3 liters, no more, no less; a 20B displaces 2 liters.
The only difference is that a rotary displaces its full displacement per revolution. For example s 5.0 V8 only fires 4 cylinders per revolution, so it's only displacing 2.5 liters per revolution. Does that mean we say it's effectively a 2.5 liter? No! That would be madness.
And to stop the other madness some one is bound to spout off: rotaries are not 2 strokes. They have 4 complete combustion strokes every 3 revolutions of the engine. The only similarity is, like 2 strokes, they displace their full displacement per revolution. So, that 250cc 2-stoke dirt bike, isn't "effectively" a 500cc because it displaces it's full displacement per revolution. Saying that would be... wait for it... MADNESS! Also, rotaries inject some oil to keep the apex seals lubricated. Just the same way oil is used to keep control rings and cylinder walls lubed in a 4 stroke, or premixed in a two stroke...
Quote:
Originally Posted by toast
That is incorrect.
In a four cylinder 2.0l piston engine each crankshaft rotation will see 1.0l worth of power (one combustion stroke per cylinder ever two rotations). In a 1.3l rotary each eccentric shaft rotation will see all 1.3l worth of power. If you are going to rate the rotary on the same scale (volume vs shaft rotation) it would be equivalent to a 2.6l engine.
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NOOOOOOOOoooooo!
/endrant