Since it uses the INCOMING air to actually turn the fan, there is no possible way that it can create extra pressure behind it, EXCEPT when you lett off the throttle, and it is still spinning fast. Then again, the extra pressure will be barely measureable, and totally useless at the time. Even in the video, it shows the car idling, and the fan not even spinning. It MIGHT, and I say MIGHT do something to atomize the fuel differently, do the effect it would have on the airstream, but even then, I would bet that the airstream would straighten itself out by the time it hit the cylinders anyway. Think of how fast a turbo has to actually spin to create any boost, then tell yourself how usefull something like this would be???????
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