Hi George, you are right, you can handle boring of the rotor housings. It can be done with a hole saw or a boring bar. Location of the port is critical as is the size: Intake opening and closing events are determined by these two in combination. I can give you the information you need. Now, comes the harder part. If you want to install the butterfly as close to the rotor as possible (which is recommended), you will have to build a throttle body that is inserted into the port you have just drilled. I can supply fairly complete drawings for this but it is not an easy build. I worked with a local machine shop to produce mine and they did a first class job. They would like to do more. Lastly, the intake manifold, most specifically location of the injectors, is another issue yet to be solved and proven. The good news is that we have one option that we are confident will work, so if plan A does not make us happy, then plan B will. More good news is that once we get the intake built and proven, Ed Klepeis will be able to supply them. I am working on the intake at this time. I am not going to provide any p port stuff until we can guarantee the performance. However, if you are talking about 7500 rpm then you can expect 250 hp. My engine will be limited to 6000 rpm and should produce 215/220 hp. Regards, Jerry





On Monday, February 21, 2005, at 10:25 PM, Ed Anderson wrote:

You need to chat with Jerry Hey - He's  been working on a PP himself, some good ideas.  He is on this list after leaving the other list.
 
Ed A

----- Original Message -----
From: Echo Lake Fishing Resort (Georges Boucher)
To: Rotary motors in aircraft
Sent: Monday, February 21, 2005 9:46 PM
Subject: [FlyRotary] Re: FW: slide throttle for 13B Rotary

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