>> <<snip>>
>> I recommend Mazdatrix Signal Hill CA to build your engine for you.
>> They will run it on the bench for free and on the dyno for more money
>> if you wish. They know what they are doing. BTW it is not possible to
>> build an RX8 style side exhaust port 3 rotor right at the moment. Well
>> anyway
>> not using a stock 3 rotor e-shaft.  The one you see racing on the speed
>> channel is really an old  3 rotor p-port engine. Also not possible to >> build
>> an RX8 style effective turbo engine unless you use third gen low >> compression
>> rotors.
>>
>> Paul Lamar
>> <<snip>>
>>
>>
>> Paul,
>>
>> Maybe I'm missing the intent of your reply above but from what I
>> have read here I wouldn't even consider a side port engine, 20b or 13b!
>> P-port engines seem to be by far the better choice for performance rotary
>> engines in virtually all respects.  So if one accepts the costs involved >> in
>> p-porting a Renesis engine are low compression rotors available to build >> up
>> a 20b for what I expect would be a relatively low boost engine >> application?
>>
>>
>> If I were to accept a turbo 13b rotary as a suitable engine is a
>> reliable long lived 300hp configuration viable.  I know of one which is
>> rated at 280 hp but not yet flying, a 7-8% increase over that would not >> seem
>> to be very much but......
>>
>> Finally please address what would be the preferred control parameter
>> to ensure that the turbo does not overspeed at altitude due to reduced
>> compressor load in the thin air. Turbo speed would be the most direct
>> monitoring parameter but air pressure would be easier to measure; or is
>> there another parameter I haven't considered.
>>
>> Thanks and Cheers
>> Good Building and Flying
>>
>> Carl
>>
>> Carl P. Lindon  B.Eng., CD.
>> Lieutenant (Navy)
>> DGIIP/DIRAP
>> Work

>> Well a really large waste gate. So far the stock waste gates seem
>> to be too small. Also a large turbine section (or A/R) will run slower.
>> So far we don't have any real data beyond that. We just can't say
>> what part numbers work well at all altitudes. Nobody to my knowledge has
>> installed a turbo turbine tach yet. That is something that really needs
>> to be done. The three or four people trying turbos are doing it by the >> trial
>> and
>> error method. Since the failure mode is turbine blade failure due to heat
>> (TIT) AND/OR RPM (centrifugal force) you might want to monitor both.
>>
>> I think a 3rd gen turbo engine with two piece stock iron or 2 piece >> ceramic
>> apex seals would work well for takeoff at 300 HP. I suspect if you tried
>> to cruise it at 300 HP you might have rotor and rotor housing cooling
>> problems. I don't know for sure. You would be on the bleeding edge.
>>
>> Paul Lamar

> Hi Carl,
>
> I am in a similar situation as you are and have looked at running the > rotary
> engine on ethanol as a way to obtain or exceed the magic 300HP takeoff
> power.  95% pure ethanol gives a 10 to 15% increase in power and burns
> cooler because if vaporizes faster than gasoline (is that the proper way > to
> say it Paul?)  The stoiometric rate of alcohol is a little over  9:1  and
> which means you can run at higher boost levels or to achieve better fuel
> mileage you should run at higher boost levels.
>
> The people at Baylor University in Waco TX. have about 6 planes flying now
> on ethanol and the Pitts I believe uses a Lynosauras with 11:1 compression
> ratio.
>
> There are drawbacks of course.   10% or worse fuel mileage, and heavier > fuel
> weight are the bigger ones.  Still I am opting for it. But then again I've
> been accused of hugging trees and dolphins:)
>
> I am going with a turbo normalized RENESIS engine and perhaps P port as
> well.
>
> Doug in Japan
> SeaWind

Talk to Ken Welter about his nos take off power valving for coot lift off.
May be a much easier way to reach your desired result. Oh yeah, hugging
dolphins and trees from aircraft is NOT recommended.
jofarr, soddy tn

Why don't you just use a J.A.T.O bottle ;)

Tony LongEZ

Ken's 2900 pound Coot amphibian with 100 gallons of gas needs all
the help it can get getting on the step Tony.

http://homepage.mac.com/rotarycoot/

Paul Lamar