Joseph M Berki wrote:

What components can be used for the Peripheral port engine.  I assume
Jerry could make up the rotor housings.  Could be new, what would he
start with? Center and end housings?  Year, type?  Rotors 89 high
compression OK?  Thanks for any ideas

Joe Berki
Limo EZ

One thing about P-port engines. Almost any end housing can be used
probably including 12A end housings. All you need is a set of 13B

rotor

housings and high compression rotors. A 13B eshaft of course.

Paul Lamar

Matt Prather wrote:

Okay...  Maybe a silly question, but how about a turbo on a p-port.  Is

there

something fundamental about this that makes it less optimal.  Or is it
just more
 horsepower than anybody is really interested in.  Or maybe heat

dissipation

capability of the housings?

An interesting discussion..

Regards,

Matt-

Now you are getting in the category of 400 HP per rotor.  Heat dissipation
could become an issue. The rotor housings I have seen in this category
have extensive internal modifications. Auxiliary water ports are used
to increase the flow of coolant through the engine.
In the four rotor Lemans engine cool water was introduce in the center
of the engine and flowed both forward and backwards, reversed and then
flowed back to the center. In high power CW four rotor engines a parallel
cooling system was used where all rotors got cool water in on the cool

side

and out on the hot side maintaining a higher average delta T.

The Mazda serial cooling system is less than ideal for real high power

rotary

engines.

side

Paul Lamar

Matt,
Some rebuilders don't recommend turbo PP's for street cars, I think the idle
is impossible to manage.
It's fine for racing but the fuel burn is a monster!
I just can't remember all the reasons, as I dismissed it as being out of the
question for my own needs - but someone may have a better idea on the
subject.
George (down under)

Well the HP is a monster too so fuel burn always goes up with HP.
If I remember I'll ask Jim Mederer what BSFC he is getting with his
1200 HP turbo p-port 3 rotor. We don't care about idle in our Reno racer.
3000 RPM idle is  1052 prop RPM. Hardly enough to move the airplane
up a slight incline :)

Paul Lamar
 
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