DIY flowbench?

[Eric Aos]

Here's a couple of different ones... Pop Hot Roddings from '93, and Car
Crafts from '82

Eric

>
> a few years ago in Popular Hot Rodding, they showed a DIY flow
> bench that seemed pretty simple to build. I have half the article
> somewhere, but not the full monty.
>
> > -----Original Message-----
> > From: David Hunt [mailto:bamainc at home.com]
> > Sent: Thursday, July 05, 2001 6:01 PM
> > To: diy_efi at diy-efi.org
> > Subject: Re: DIY flowbench?
> >
> >
> > Barry,
> >
> > In response to your question, I haven't seen any air flow
> > rate benches.  I
> > have been thinking along the same lines as you.  A vacuum
> > source could be
> > controlled by using the vacuum signal as feed back to a motor
> > controller.
> > The flow could be measured by something like a MAF sensor.
> > This deluxe
> > system could be relatively accurate from system to system.
> >
> > Also, A good vacuum source shouldn't be necessary if the
> > differential vacuum
> > is held between input and output the power required to hold
> > the differential
> > pressure between input and output would indicate the flow.
> > While sort of
> > repeatable from run to run, it might not be repeatable
> between setups.
> >
> > Other ideas would be helpful.
> >
> > dh
> >
> >
> >
> > ----- Original Message -----
> > From: "Barry Tisdale" <btisdale at cybersol.com>
> > To: <diy_efi at diy-efi.org>
> > Sent: Wednesday, July 04, 2001 9:20 AM
> > Subject: DIY flowbench?
> >
> >
> > > Anyone done anything in thid area?  I just broke rings or
> > lands in my Sy
> > > engine's #1 cylinder, which I hear is notorious for this.
> > Was thinking of
> > > a vacuum cleaner applied to the port side each passage of the bare
> > manifold
> > > & measuring vacuum produced there.  Could use a manometer
> > or a MAP sensor;
> > > idea is to equalize flow between runers.
> > >
> > > Comments?
> > >
> > > Thanks - Barry
> > >
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> > >
> >
> >
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