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Its one rotation of the crankshaft. One rpm=one cycle.
Its not being released to the public yet so no need to do 100 hr testing yet.
This was a scale test to determine whether or not the theoretical advantages would scale up and would be effective over time.
Now they'll run a system until they break it, since a 7.5% increase is pretty good.
On a related note its going to allow(coupled with V-TEC, GDI and stratified injection) a much greater spectrum of FE-HP. Higher compression(via adjustable heads) more aggressive valve timing and more fuel(via stratification) gives you more power while lower compression more aggressive valve timing and warmer charge(injecting little bits of fuel gradually to keep temps up as well as having less fuel evaporate overall) could yield substantial FE.
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