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Air Compressor Bolt to intake?


V8ChevyS10
04-13-2009, 02:51 AM
Another annoying question. Anyone know, or seen it being done, if you could use a regular air compressor (compressed air=denser air), store it in the trunk, run the line through the cabin (where the trigger would be, next to the shifter or something), and then run it heat protected through the firewall into the engine compartment, and drill a hole in the intake and mount it there? Same conceptual idea as NOS i guess, but more cost efficient. Would it even increase the power at all? :screwy: Would it be dense air or just regular oxygen flowing faster?

MagicRat
04-13-2009, 09:25 AM
The problem is air volume. Regular air compressors do not provide enough volume of air.

A typical Chevy 350 engine may require 600 cubic feet per minute at full throttle. The compressor would have to supply MORE than this in order to produce any pressure in the intake manifold.

Now. imagine a box 1 foot x 1 foot x 1 foot, with air inside. Now imagine 10 of those. This 350 cid engine uses 10 such boxes of air each second. That's a lot of air.

A typical larger shop - type compressor flows about 5 cubic feet per minute, not 600.

You would simply need a huge compressor with a big pipe to flow so much air.

Here is a better idea:
I considered using my big backpack-style gas-powered leaf blower (the kind that professional landscapers use, not a cheapo hand-held unit)
Like this one. (click) (http://www.echo-usa.com/product.asp?Model=PB-755SH&Category=POWERBLOWER)

These units can blow about 1200 cfm at minimal pressure. My guess is at about 400 - 600 cfm, they can produce about 2-3 psi or so.

The outlet pipe was about 4 inches dia, or about the same size a the intake on an efi 2.3 liter Mustang I had.
I had considered experimenting with pressurizing the intake with this leaf blower for more power, but never got around to it.

Also, I had considered using a 12 volt cordless 400 cfm blower, so I could make an under-hood unit for smaller engines. One could rig it up so the blower would come on at wide open throttle only. However, I probably would have gained only a few HP at best.

V8ChevyS10
04-14-2009, 05:51 AM
I meant like leaving the cold air intake on it, and drilling a hole in the plastic part before the manifold (1976 Monza, no need to smog) like you would hook up a regular O2 sensor. You would still have all the regular air flowing through it, just a little more at a higher speed from the compressor. It does produce high speeds right? IDK... maybe it really wouldnt work. Lol.

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