You would need to have some form of control how much air, and at what pressure. And u wouldnt need to have as much air getting forced into the intake manifold while your idling, compared to when you hitting vtec.... It would be a huge mammoth task to setup for very little gains Im sure! and Im sure mr plod would frown upon you with a oxy tank in your engine compartment, when pulled over for a friendly 'defect inspection'

You would be best to strap the compressed O2 bottle to your tailpipe open the valve and use this to help propel you

But in all its an idea...

Hmm maybe could feed compressed air out of a air conditioning system into your air filter!?!? Im sure the cooler dense air would have some form of gain?!?