DIY flowbench?

[David Hunt]

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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