As it happens, there is no manifold on an engine in this configuration so it is difficult to measure manifold pressure.  Where are you going to get manifold pressure from?  (did I mention that manifold pressure was a primary input to the EC2?)  To make matters worse, Paul was so confident in his abilities to make anything work (even an EFI system that he had zero experience with) that he didn't bother to take the EC2 instructions with him to Mazdatrix.    Given these circumstances, it was no surprise that the dyno run was a dismal failure.  Dave at Mazdatrix yanked everything off the engine, put a webber carb and manifold on it and got it running in order to get a pull on the dyno.

 

And so the story of how the EC2 will not run on a Dyno (and by extension, with a CS prop) was born. 

 

Tracy 

 

----- Original Message -----

From: Thomas Jakits

To: Rotary motors in aircraft

Sent: Thursday, May 10, 2007 7:23 PM

Subject: [FlyRotary] Re: EC2 question

Tracy,

 

what was this talk (some time ago on the other list, .....I get the essential stuff, but delayed...) that your EC2 is not compatible with a C/S prop?

That it does not work on a dyno?

Would you please care to clear up the "smoke"....

 

How far is your EC2 from a true FADEC (or whatever Mistral is calling there system)

You are already trying the Fly-by-wire throttle - is it a lot more for a FADEC?

 

Single power-lever (maybe the prop-rpm separate or even that controlled by single lever), no mixture adjustment needed...

 

Best Regards,

 

TJ