Subject: rotary engine in Mustang II
From: rotaryeng
Date: 9/21/2014, 12:52 PM
To: AA-1-Me


You need to shorten the intake  runners to 18" to 20" engines for more power
with a 2.85:1 PSRU. Take off RPM  will be 6500 to 7500 engine RPM.

 Also you will need my cooling  book.

Shield the lower left motor mount  bushing  with ss from the 1500 F
 exhaust pipe.

 Paul Lamar

 Jake, thanks for the pics. It is sad to see such potential
 in a project  go unfinished. Let's hope you get a good deal on the FWF
 package, and   get another rotary in the air.

 Steve Carlisle

Thanks for the info,  what is your cooling book?
How would you shorten the intake runners with the air intake on the right side like it is?  How much power difference would there be?  I was planning on wrapping the exhaust pipes and will plan on a sheild for the motor mount.

Jake

The plenum is unnecessarily large. Move it to the top of the engine something like this.
You will save weight too :)

This is a P port but an optimized  side port will work too only about 50 HP less.

With the intake runners as long as they are now you will be about 165 to 180 HP. You should
get 200 HP with an optimized side port engine, 2.85:1 PSRU and 18" runners at 6500 to
7500 take off RPM. With a P-port you would get 250 HP.

There are now better mufflers than that shown in these pictures and 3D's.

http://www.rotaryeng.net/cooling.html

I also sell the book direct for cash  $30 + $5 shipping in the US. More shipping
over seas.

Paul Lamar

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