Mailing List flyrotary@lancaironline.net Message #4267
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Injector Staging
Date: Sat, 8 Nov 2003 20:07:35 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

What is injector staging?  Are all the injectors not
working below a certain rpm, then above the staging
point all 4 injectors start operating?

Thank You.

-Scott

Hi Scott,
 
You're pretty much correct.  Mazda has always done this with the rotary.  They run the two "primary" injectors all the time, and turn the "secondary" injectors on when needed.  I'm not 100% sure how Mazda's computer decides when to turn them on, but I know that Tracy's computer uses manifold pressure as the criteria.  That MAP setting is adjustable btw. 
 
Cheers,
Rusty ("Not going swimming today Boyington")
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