Mailing List flyrotary@lancaironline.net Message #19455
From: Mark R Steitle <mark.steitle@austin.utexas.edu>
Subject: RE: [FlyRotary] Re: fuel injector size
Date: Fri, 25 Mar 2005 09:25:52 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message

Al,

So then six of the 550cc injectors should be good for 450hp.  Sounds good to me. 

 

Mark S.

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen
Sent: Friday, March 25, 2005 9:13 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: fuel injector size

 

 

Rusty,

What color are the 850’s.  Both primary and secondary injectors in my j-spec 20B are a deep red/crimson color.  I think it is a ’93, but I’m not sure.  You’re probably right on the 3rd gen 13b’s having 850 cc secondary injectors. 

 

Mark     

 

The primary injectors on my 20B are, what – purplish red? (I haven’t seen them in awhile, the cowl is on), and RC engineering measured all three 570 CC/min.  I presume these are what Mazda calls 550s.  At a BSFC of 0.6 (high power mixture); 4 of these should be good to about 300 hp at 80% duty cycle.

 

Al

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