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We're a rooting for you, Jerry. I have a hole saw and just itching to bore
holes in those two housing I have saved for such an event. I agree that
with just the two ports sucking air that the velocity should stay high and
that's of course good for stuffing those chambers.
Ed A
----- Original Message -----
From: "Jerry Hey" <jerryhey@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, March 21, 2005 7:36 PM
Subject: [FlyRotary] Re: P port intake design
Ed, you are right on all counts. Space and Ease of fabrication and
the idea of cold side fuel all play a part. If I go to an injector
close the the butterfly such as Power Sport is doing, then I will have
to go to a single injector as there is not room down there for two. I
like using two injectors if I can. P ports (if the runners are not
too large) can generate some howling velocities, probably more than an
intake with four runners, that I hope will help with the throttle
response. But we shall see. This is an experiment and I will change
what does not work. Jerry
On Monday, March 21, 2005, at 07:08 PM, Ed Anderson wrote:
> No error Jerry, but wonder why are you putting the injectors so far
> away
> from the port? Space? Ease of fabrication? I tried putting my four
> injectors 21 inches away from the port myself and found that while I
> could
> not tell any difference in power( up or down), I found a distinctive
> hesitation bog if I opened the throttle quickly. Also it was hell to
> start
> on a cold morning. But, a PP port may be a different animal in those
> regards - actually cold starting should be OK as any liquid fuel will
> flow
> down hill. With my plugs up it has to flow up hill {:>).
>
> Good luck, we are all eagerly awaiting the results and I have two
> almost new
> rotor housings just waiting.
>
> Ed Anderson
> ----- Original Message -----
> From: "Jerry Hey" <jerryhey@earthlink.net>
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Sent: Monday, March 21, 2005 6:34 PM
> Subject: [FlyRotary] P port intake design
>
>
>> I've been messing with the p port intake design. I think it is about
>> ready to build. If anybody sees a glaring stupidity or even a subtle
>> one, please let me know.
>>
>> Still to be resolved is which injectors to use. Tracy, do you have
>> any suggestions? Using the 80 per cent rule, I need injectors for
>> around 260 hp. Thanks Jerry
>>
>>
>
>
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>>>> 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
>
>> Homepage: http://www.flyrotary.com/
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