Alex Madsen wrote:

What would be required to crate a custom 3 rotor Renesis? Naturally

one

would need to create a new eccentric shaft. Could one just use 2

middle

housings in the assembly? It seems to me one may run in to trouble

with

the planetary gears and balancing the shaft. How are the lobes on

the

20b orientated? I have not had the opportunity to dissect a rotary
engine yet so I have no idea what is possible.

Alex

A custom three rotor intermediate housing with side exhaust ports.
Not easy to do. Balance or planetary gears are not problems.

I think the stock three rotor shaft might work. Lobes are 120 degrees
apart.

In some ways it is easier to make a four rotor with a custom shaft.

Where have you guys been? A 3 rotor rx8 has already been sold and bought
on ebay about a month ago. It went for quite a bit. Don't recall who did
it but it was set up for road racing.
[Marc Wiese]

When I was over in Hiroshima having lunch with the RX8 product manager I suggested
an all aluminum three rotor in the RX8. What the RX8 needs most is more low
RPM torque. There is no replacement for displacement. An all aluminum NA 3 rotor
would be about the same weight as the current cast iron  RX8 engine requiring few
structural changes in the RX8 chassis and little or no increase in overall weight. 

Send your request for an all aluminum three rotor in the RX8 to Keiichi Wakabayashi 
General Manager, Global Communications Planing Dept. 

mailto:wakabayashi.k@mazda.co.jp

Keiichi is fluent in English.

Paul Lamar
 
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