Mailing List flyrotary@lancaironline.net Message #7871
From: John Slade <sladerj@bellsouth.net>
Subject: RE: [FlyRotary] fuel injector prices
Date: Thu, 6 May 2004 22:17:59 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> but the reason we use the 550 cc/min injectors is because they

> Brands vary, but are usually Bosch.  I'm going to start with 38
> lb injectors at 38 PSI - should be good for about 230 HP at 80%
> duty cycle and 0.5 BSFC.  Would also be good for ~245 HP at 44
> psi.  Note that if NA these will not be working very hard at


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

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