Disclaimer: This is a theory, so I do not recommend or I am not commanding anyone to try this...

Has anyone tried getting compressed air (like from scuba tanks), and feeding that into the car? Thats another type of forced induction :-)

What performance gains did they get?

And I know this is a dumb and dangerous idea, but it's still another idea to go faster :-)

Thanks

Well your theory is basically like Nitrous. You feed in more air than the motor can naturally inhale, add more fuel to the air, then get more power. It would prob work, but its really how nitrous works, prob without the nitrogen buffer that is in Nitrous oxide..