Psi?

[Paperfish]

Turbo's and Superchargers work off of PSI right?

What, if anything, would happen if I had a 25 gallon air tank at 250psi ready to dump into my intake?

[GTStang]

your engine would suck it in so fast you'd be down to barely any psi in seconds. You might get a small hp for a couple seconds. Take that take and fill up a flat tire. Take the tank and open it up all the way see how fast it drops to zero. Will be basically the same effect when hooked up to your engine

[ivymike1031]

even if you had an infinitely large tank, it wouldn't do you any good... there's nothing to keep the flow from going back out through your air intake, so you really can't get a significant amount of boost.

[Sluttypatton]

I started a thread very similar to this and here is my final results.

I have done some math and I have concluded that this is impossible...Ridiculous pressures aside, it would be impossible to flow enough of this to make any meaningful horsepower increase, and furthermore that horsepower increase would decrease relative to engine speed increase. This is because the maximum flow of the solenoid would produce a miniscule hp increase at low RPM and as the solenoid is already at maximum flow, it could not flow more as engine speed increased, resulting in a smaller power increase as RPM increases [ Sf<=20000ccm, Air*Rpm+Sf=X, X is the total gaseous content of the cylenders, and as Sf(solenoid flow)is <=20000ccm while a 2.0L engine can theoretically use 13104000cc's of air @7000RPM (in a stoic mixture), 20000cc's becomes less than .2% of the total gaseous content, while @1000RPM Sf=1.1%], that may not make sence as it is late and I am tired so I may have left some steps out or got the equation wrong. The next problem is that not enough of it could be stored in a tank to produce even the maximum solenoid flow (which already produces little extra power at maximum flow.) So close yet so far away...the principle does work, and I wondered why noone had ever tried this, now that I spent 3 hours working out the math, I know why. I had a feeling it may be impossible when I started but until I did the math I was not sure. Back to the drawing board!

25 gallons works out to 94607cc of air, so not really that much. Plus finding a solenoid that can flow enough air is impossible.
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