[EFI] Re: [EFI] Re: Building a Flow bench

[Dylan Johnson]

Along the same line why not set use a tank with a vacuum in it and open the
valve. While the tank is filling you should be able to get some good #s. The
problem with pressurized air would be the turbulence created as the air
rushes out of the tank.

Date: Tue, 05 Feb 2002 16:51:55 -0800
From: Brian Dessent <brian at dessent.net>
Subject: Re: [EFI] Re: [EFI] Re: Building a Flow bench

As far as a flow bench is concerned... I did a quick calculation, and it
seems that if you took a 20 gallon tank, pressurized it to 120 psi
(assuming you do it slowly or let it cool), then could somehow release
it very quickly, you could achieve your 25" water column pressure at 200
cfm for like 6-7 seconds.  The numbers are approximate, and the valving
would probably be really tough, but it would let you take your time
building up the air mass with any old compressor and then let it go in a
hurry.  I've also completely avoided the temperature / condensation
issue.  But hey, it's a shot.  I'm sure someone's tried it and failed.

Brian

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