Building a Flow bench, was: Measuring air flow

[Raul Chinda]

I would have to say that the motor rpm is somewhat irrelevant since you can affect the rpm of the "blower" through 
gears.  You still need a decent motor to pull this off.


Raul

1/27/2002 4:51:18 PM, "The Dupuis" <dupuis10 at telusplanet.net> wrote:

>Gus Mahon uses a leaf blower that makes 13" fully stalled.  I think this
>would work but you'd have to use more than one, or measure flow AND pressure
>drop and calculate go get to a standard known pressure drop.  Obviously,
>with the correct air pumps you'd regulate airflow to arrive at a known
>pressure drop and then measure the airflow, but with a pump that small,
>you'd have to run it wide open and measure both.
>
>I don't know how fast you hope to spin the turbo with an AC motor, as there
>are none that spin faster than 3550 rpm.   How powerful and fast a DC motor
>do you have?  interesting prospect though, being able to regulate the speed
>of a DC motor to vary airflow rather than use a restrictor orifice.
>
>> -----Original Message-----
>> From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
>> Behalf Of 944Technologist
>> Sent: January 27, 2002 4:17 AM
>> To: diy_efi at diy-efi.org
>> Subject: Re: Building a Flow bench, was: Measuring air flow
>>
>>
>> I was looking at using a leaf blower. It has a dead gas engine
>> but it looks
>> easy enough to convert it to electric. Or add an electric motor to a
>> 924Turbo Turbocharger that I have laying around.
>>
>> FR Wilk
>>
>> From: "Eric Aos" <eoa at spartek.com>
>> > The furnace blower fan doesn't have enough vacuum (I tried one
>> once). Get
>> > the fans from http://www.grainger.com/ , you can order the same
>> ones that
>> > are used in a shop vac.
>>
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