Ok, in the second gen forum someone brought up using C02 to cool intake air. This being put aside almost immediately for a short discussion on using compressed air in the intake.

That being said, here's the question:

Would it be possible to use a compressed air tank to force more air into the engine in the place of the turbo?

I understand that it you would have to get the fuel system to use more fuel so it doesn't run lean, I'm sure there's a way to do this without running an aftermarket ECU.

I think this sounds really cool and, compared to some choices, not too expensive if done right. ( of course done RIGHT, talk about expensive)

I don't mean to use this in place of a turbo completely (that'll come later) I just mean for a few burst of turbo power.

Any of you rotary gods in here, PLEASE input.

 

well if you think about how much air a 13b pulls in at say
5000rpm the amount of compressed air to make any
kind of difference would be huge, you would have to
pull a storage tank the size of the car of have dive bottles of air
with 3000psi in them, and even then a dive bottle only
holds 80 cubic feet of air at 3000psi which wouldn't last long.
I know that all this can be calculated and explained with
numbers but i am to lazy to figure it out.

matt

 

I did the math on this once, somewhere.

IN a nutshell, because *all* of the engine's air would have to come from the tank (to prevent it getting blown out into the atmosphere through an open throttle). This required a necessarily large and high pressure tank, I think on the order of something taking up the entire hatch area at a pressure of over 400psi. Not worth the while, even if it wasn't a huge weight penalty and an even huger safety risk. (Yeah, home fabricated air tank at 400psi, *that's* what I want 6 inches from my head....)

Search isn't functioning right now. Search for "compressed air" for posted written by me, and it should turn up.