Mailing List flyrotary@lancaironline.net Message #9956
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: Fuel Rail
Date: Wed, 21 Jul 2004 13:25:30 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
But that limits me to using the 550cc injectors.  I feel these are way too big for a n/a engine.  My objective here is to go to a 460cc injector.   
 
Hi Mark,
 
As Al mentioned, you may not be in bad shape with the 550's.  I recently changed from 550's to 460's on a NA 13B, and I couldn't see any difference in idle.  Mixtures only had to be slightly adjusted anywhere along the range, so I just don't think there's that much difference between the two.  It's been suggested before that Mazda rated some of their injectors at "standard" 3 bar pressure, and some at their lower fuel regulator pressure.  If that's the case, it's hard to go by the numbers that Mazda lists.  
 
Cheers,
Rusty  
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