flyrotary@lancaironline.net Mailing List Archive

What is the actual size of the stock Renesis injectors? I was under the understanding that the red primary was 295 ccm and the blue secondary was 610 ccm. I heard that the yellow injectors from the hi power 6 port were a different size, but have never heard what size they were supposed to be.

Don, did you say you had your injectors cleaned and flowed? What did they flow?

Where can this information be found? Is is listed in a Mazda book somewhere?

Bill B

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Friday, June 19, 2009 9:24 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: 295cc vs 495 cc was [FlyRotary] responses to responses, not developing full power

Mode 6 would handle it but that is for normal staging only. The 'injector set disabled' is a special case In which the EC2/3 does not know which set has been disabled and therefore can't know exactly what to do. It's up to the pilot to make the appropriate response on the mixture knob if the injectors are not the same size.

Tracy

On Fri, Jun 19, 2009 at 10:17 AM, Al Gietzen <ALVentures@cox.net> wrote:

When you switch the primary injectors off and secondary

injectors on - the EC2 is still providing the same pulse duration (assuming

engine manifold pressure, etc are the same) for the almost twice as large

secondary injectors as it did for the smaller primary injectors. Ergo, you

are feeding the engine almost twice the fuel (for the same engine

conditions) as you did when on the primary injectors. The engine is choking

on too much fuel.

Unless, of course, you have made the mode 6 adjustment to compensate for the difference in the flow rates – or will mode 6 not handle such a big differential.

Al G