by Farrell Vaughan » Fri Mar 21, 2008 3:59 pm
Well guys, after reading some of your responces to my post it became really apparent that the current state of "mind reading" in our world is not up to snuff. In all honesty, it was my fault for the lack of info provided. At no time did I envision this as being a particle board type enclosre, rather it will most probably be a series of food grade stainless conduits and chambers. The only wood used would be for the "bench" aspect of this flow bench.
It seems that my air source is a tad suspect though. It being a screw blower off of a Mustang Cobra. On a running engine, it would produce just around 20 psi boost. It was easy to turn unlike our old stripped 14-71's, so I figured it wouldn't take too much power to drive. The idea of a motorcycle engine did come up, but we do have neighbors in the complex. I've found a 20 hp electric motor that will spin 3600 rpm, so pulleying the blower to give us 20 psi to one steady state cylinder, doesn't seem to unrealistic.
Recently I've discovered a line of insertable hot wire flow meters that could possibly do away with the orifice plates. I don''t really know how finite, accurate or repeatable these instruments are. Anyone know?
One last thing, it seems alot of you got a chuckle out of my 20 to 30 psi for saftey reasons comment. Laugh at me , laugh with me, at least I made you laugh. I to was snickering to myself at your responces. I remember preasure testing the first intake manifold I built for a drag race Cummins motor. Long story short, I lost a seam at 85 psi. Too bad, it had to live with 130 psi. I don't hear as well on the right side anymore.
thanks for your indulgence,
Farrell