Modern flowbenches are pretty cool and fairly accurate as far as they
go, but I used to really enjoy going to Jerry Branch's shop and
watching him use his. His air bench blower source was (as I recall) a
6-71 Jimmy blower and a bodacious electric motor that dimmed the
lights on the Pike in Long Beach when he lit it off.
On Feb 1, 2008, at 7:38 PM, Allen Washatko wrote:
> OK, I understand the concept. I'll check tomorrow to see what the
> depression number is.
>
> Allen
>
> On Feb 1, 2008, at 9:32 PM, Michael Porter wrote:
>
>> Allen Washatko wrote:
>>> I have no idea what you are talking about.
>>> Allen
>>>
>>>
>>
>> Umm, most flow benches do not have the power to pull enough air to
>> actually simulate the engine's actual operation (hundreds of SCFM),
>> so, there's some sort of correction based on the amount of air the
>> bench's blowers can move, based on the depression at the inlet (that
>> where the inches factor comes in). The smaller the amount of air the
>> bench can move, the more likely it is that the correction factor
>> gives
>> an inaccurate measurement compared to actual engine operation.
>> Generally, the more air the bench equipment can move, the better the
>> estimate of CFM moving through the engine in real operation.
>>
>>
>> Something like that. :)
>>
>> Cheers.
>>
>>
>> --
>>
>>
>> Michael Porter
>> Roswell, NM
>>
>>
>> Never let anyone drive you crazy when you know it's within walking
>> distance....
>>
>>
> Jody & Allen Washatko
> N65 W5567 Columbia Road
> Cedarburg, WI. 53012
> USA
>
> tel. (262) 375-6888
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Bill Babcock
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Billb@bnj.com
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