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Date: Fri, 21 Jan 2005 12:56:20 -0500
From: WRJJRS@aol.com
To: flyrotary@lancaironline.net ("Rotary motors in aircraft")
Subject: Re: [FlyRotary] Re: Pport/cold side injectors
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Ed, Mistral said that the problem they encountered was response time and slightly lower BSFC. They just put together a new manifold that looks very nice. They are convinced that they need near-the-port injectors however.
Bill Jepson

In a message dated 1/21/2005 9:12:09 AM Eastern Standard Time, "Ed Anderson" <eanderson@carolina.rr.com> writes:

>The Swiss Mistral rotary folks reported that when they went to long runners
>that they believed they encountered  a "distillation" problem as Ernest
>mentioned.  Due to this problem they believed that they encounter detonation
>with their turbo set up due to the "Low Octane" part being ingested at a
>different time than the lighter high octane part of the fuel.  I am
>certainly not enough of a chemist to even know if this even sounds
>plausible.  However, the team did have a Chemist and that is what he
>reported.
>
>I must admit I'm a little bit skeptical of this mode as it would seem that
>even if it happened you would have a continuos stream of light and heavy
>elements intermixing between one injection period and the next.  But, they
>certainly had the resources and inclination to look into the problem and
>that was their conclusion.
>
>Ed A
>
>
>----- Original Message -----
>From: "Ernest Christley" <echristl@cisco.com>
>To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
>Sent: Friday, January 21, 2005 8:48 AM
>Subject: [FlyRotary] Re: Pport/cold side injectors
>
>
>> On Thu, 2005-01-20 at 20:41, Jerry Hey wrote:
>> > Thanks Ken,   I want to try to make cold side fuel injection  work.
>> > Idon't see any reason, YET,  that would indicate the system would
>> > notwork.  But if it does not work, then I will COPY  your set up.
>> >
>> > I have seen carburetor intakes on P Ports with about  a  12 inch
>> > runner made from a 90 degree sweep.   They were turning out  huge
>> > power.    Jerry
>> >
>>
>> Check the FlyRotary archives.  There was some discussion of long runners
>> a while back.  I forget who it was, but they found that the fuel will
>> 'distill' in the runners.  The lighter compounds get sucked out and
>> ingested immediately.  The heavier parts fall behind and get taken in as
>> clumps.  The end result was that the engine wasn't breathing a nice even
>> mixture, but a uneven combination of light petroleum gasses and balls of
>> oil.
>>
>> At least that is how I understood it all.
>>
>>
>>
>> >>  Homepage:  http://www.flyrotary.com/
>> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>
>
>
>
>>>  Homepage:  http://www.flyrotary.com/
>>>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>