Message-Id: <5.1.1.5.2.20040507082257.01237dd0@localhost>
Date: Fri, 07 May 2004 08:29:56 -0500
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
From: Mark Steitle <msteitle@mail.utexas.edu>
Subject: Re: [FlyRotary] Re: fuel injector prices
In-Reply-To: <list-3209801@logan.com>
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At 10:30 PM 5/6/2004 -0400, you wrote:
>  >
> > A couple of interesting points for me here:
> >
> > 1. There's a direct corrolation between fuel PSI and volume of fuel
> > released. Obvious, I guess, but I hadnt thought about that. So - lowering
>my
> > PSI might get me into the right range???
> >
> > 2. People talk about 550cc/min and 38lb injectors. I presume its a simple
> > conversion from cc to lbs, but the mixed units arnt helping. What are the
> > 550cc injectors in lbs?
> >
> > John Slade
>
>
>   550 cc/min = 0.1453 Gallons.  So 0.1453 Gallons * 60 (minutes) = 8.718
>Gallons/ hour x 6 (lbs/gallon) = 52 lbs/ hr.  Or a 550 cc/min injector would
>flow approx 52 lbs of fuel if it flowed wide open for one hour or 52 lbs/hr.
>
>for the NA engines the stock injector is the 460 cc/min (sometimes they
>varied a bit around that figure)
>460 cc/min =  0.1215191gallons so performing the same calculations = 7.29114
>gallons/hr x 6 = 43.75 lbs/hour
>
>Ed Anderson
>
>The Mustang shops sell a 42.5lb/hr Bosch fuel injector set for the 
>Mustangs.  Based on Ed's success
>with the 460cc/min injectors, I chose a size as close to his for my n/a 
>20B.  They seem to be a good choice, so far.
>
>Mark S.


>