Subject: Rotary in a Miata
From: Rotary Engine
Date: 9/30/2010, 6:02 AM
To: AAA Put this in the To box


There were two rotaries in Miata's at this years
SCCA run offs. If enough people want to race
the rotary in a Miata the SCCA  might form
a class for them. It would be cheaper as the
rotary is lasting as long as three seasons
of racing while the Miata piston engine is
lucky to last one. Not to mention the rotary
is half the cost to rebuild. Brian spent
$8000 on his engine this year with Prather.

Paul Lamar

Good morning Paul,

the company who built the MX5 with the rotary engine
www.rotary-motorsport.de   E-mail: hoffmann.zernien@freenet.de
rotarymotors@web.de

They told me to make a basic racing version is even easier than a (german)
street version.

Best Regards
Paul Woelfle


Yes I think it would be. The stock RX8 intake manifold is an amazing
piece of engineering but the height makes it more difficult
to install the engine in the Miata. It was designed to increase
the torque over a wide RPM range from 3000 to 8500 RPM.
That it does but it is not enough low RPM torque for a
3500 pound loaded RX8. It will work better in the lighter
weight Miata.

If I were Mazda I would simplify the intake
manifold some what and sacrifice some low RPM torque
for high RPM power and put in a six speed paddle shifter
Formula 1 type transmission. That would make the RX8 lots
of fun to drive.

I would also put in the trap door
P-port that will give 50 more HP on the top end
(300 HP) without affecting the EPA emission laws.

http://www.rotaryeng.net/RX8-p-port.html

This is in addition to the RX8 engine side ports. Basically
what we are doing here is pivoting a section of the rotor
housing trochoid wear surface up while opening a large P-port.
It only opens at full throttle and high RPM. Over 6000 RPM.
The rest of the time it seals the exhaust gas from the
intake ports for smooth low RPM running and low HC emissions.
Just like the current RX8 engine. No port overlap at low RPM.

Paul Lamar

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