Terry,
If you want to measure flows for a particular item then a simple flow bench
is the answer. I have made up a "home grown" version using an electrically
driven Toyota supercharger for the air pump. For the flow measurements I
used an inclined tube manometer, and a Pitot tube ( accurate bore
diameter). The amount of flow for a given bore diameter Pitot tube at a
particular pressure is readily available. I do not know of an easy way to
do it accurately on an engine in a moving car.
Craig, any ideas?
Cheers
Feral Errol
----------
From: Terry <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: RE: Airflow calculations
Date: Thursday, September 14, 2000 11:31
Errol,
One last question on this - is there any way to measure the pressure
differential on a particular engine. Like it's easy manifold side, just
hook
up a vac gauge and it should be zero but are there any backyard ways of
measuring the induction side.
Terry
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Errol Smith
Sent: Thursday, 14 September 2000 10:39 PM
To: [EMAIL PROTECTED]
Subject: Re: Airflow calculations
Terry,
Typically the pressure drop from the input side of the carb to the output
(engine side) will have a pressure differential of between 1.5 - 2.5 "Hg @
Wide Open Throttle (WOT).. The pressure differential largely depends on the
engine speed, bore/stroke ratio and camshaft profile.
Cheers
Feral Errol
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