Dear Paul, I am planning on building a Waiex. I have always been
    fascinated with the Wankel. I have an RC version that is in a small
    plane and its great power to weight and size. Do you think it is
    possible to make an engine set up for the Waiex weighing 150-180lbs
    and make at least 120hp? Any ideas on where to start and cost?
    Thank you. Please subscribe me to your letter. Very Best Regards, Jim
    Hamman DDS Oshkosh Wisconsin

    Its possible with a Mazda one rotor but the cast iron parts need to
    be swapped for aluminum.

    This gentleman has been working with it for years.

    http://www.fairpoint.net/~res12/home.html

    You will need a 3:1 gear box and take off at 7500 RPM. No way is that
    a problem as the street red line is 9,000 RPM and racers have been
    turning them at 11,000 RPM for years.

    Also get my book on How to Cool Your Wankel.


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

    Read the rest of the web site.

    Paul Lamar


    Hello Paul, I am sorry I was not able to catch up with you when you
    came to Tauranga. I am putting a single rotor engine in my Asso
    Champion v that I am building. I would like to buy a copy of how to
    cool your Wankel. Is it available on download, disc or only in print?
    I am going to use the racing beat alloy side plates. I was planning
    on going turbo and injecting, but not P port. I am also looking at
    around 120hp, what would your thoughts be?
    Regards Andrew Campbell


    Contact Neal Ungar in Oz. He has some How to Cool Your Wankel books.

    Neil Unger <neil.unger@bigpond.com

    Save a lot on shipping and the money exchange is simpler.

    Yes the turbo one rotor is a good way to go,
    The turbo can be bolted to the rotor housing and makes a good muffler.
    150 HP would not be out of the question :)

    Paul Lamar

Just about anything will work. If it is a bit over size the turbine will handle
the high exhaust heat better. Car turbo turbines are small to allow rapid
spool up. They tend to fail in continuous aircraft use. The turbine also speeds up
as you go up in altitude. What kills them is the product of exhaust heat times RPM.
It is best to use a turbo tach and limit the rpm to around 80,000.

Paul Lamar



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