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Ernest, did you get a high speed dynamic balance on your blower? I've built blowers of a similar form and had good results, but only after balancing to rated RPM.
Jarrett Johnson
www.innovention-tech.com
Some of you may recall my blower experiment. Using
the shaft between the flywheel and PSRU to drive a centrifugal fan
to charge the intake.
My implementation died in the crib. before.jpg shows what it
looked like a week ago. after.jpg is what was left of it after
the few minutes I was able to get the engine to run. Well, that
wasn't all that was left over. intake.jpg shows how the blades
got thrown toward the intake and smashed up against the air
filter.
Oh, well. Until I can design and build or have built an impeller
that can handle 8000RPM, I'm going to table this experiment. I
still think it is a good idea. So did these guys:
http://www.flightglobal.com/pdfarchive/view/1942/1942%20-%200142.html
Furthermore, the calculator at
http://www.forestryforum.com/members/donp/Blowercalc.htm indicates
that with the 10.4" diameter, 3.35" deep area available for me to
put a blower, I should be able to generate 17" water column
pressure.
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