Mailing List flyrotary@lancaironline.net Message #24384
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Forward from Mistral Engines SA
Date: Thu, 23 Jun 2005 19:04:29 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
George,
 
I believe they experimented with several different configurations including one with all the injectors at the far end.  However, as best I recall they felt they were having detonation problems caused by the "higher" octane components "distilling" from the mixture and leaving "lower" octane components in vapor (combustible) form whereas the higher octane components were reverting to liquid form in the intake - or something along those lines.
 
Ed A
----- Original Message -----
Sent: Thursday, June 23, 2005 6:33 PM
Subject: [FlyRotary] Re: Forward from Mistral Engines SA

Bill/ Ed,
I thought they had two close primary and 2 out near the TB Secondaries?
George ( down under) 
Ok, thanks, Bill
 
My person experience has also indicated injectors closer to the port turn out to give me a smoother and better running engine.  I have had all 4 out as far as 21 inches and found throttle response and starts in cold weather not to my liking.
 
Ed A
----- Original Message -----
Sent: Thursday, June 23, 2005 4:41 PM
Subject: [FlyRotary] Re: Forward from Mistral Engines SA

 
I find it interesting that after all of their experimenting with injector positions - they chose to have all four very close to the intake port.
 
Ed A
 
Ed, Francois claims this is the best position for efficiency and power in their tests. That jibes with the comments that Mazda made for the RX-8 injectors in or near the port.
Bill Jepson 
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