Hi Paul, have you seen this?
http://www.carsguide.com.au/news-and-reviews/car-news/Mazda_rx7_revival_down_to_farmers_80346_20131122



   John Burey

   They always get some twit journalist to write this cheap shot stuff.
   There is absolutely nothing wrong with the emissions of the RX8.
   Here in California we have the strictest emissions rules in the
   world. My 2004 RX8 has absolutely no trouble passing the California
   emissions test with flying colors. See the attached smog test paper.

   It gets 25 MPG at a steady 70 MPH. See the attached OBD II printout.

   Some magazine should gather up a bunch of sports cars and run them
   around in a convoy and measure the MPG's. I'll bet the RX8 comes out
   near the top.


   I can't wait to get one of these small rotary engines and strip all
   the generator stuff off it. Might make a good Ultra Light or LSA
   engine.

   Paul Lamar --

   Paul, If you had said wit instead of twit, that would be me!!! LOL
   jd

   You notice he has a twitter account :)

   Why do your fellow journalist insist on taking cheap shots at the
   rotary?

   Paul Lamar


   http://www.motoring.com.au/news/2013/mazda-revives-rotary-40280

   I say get the word out to ALL those building their own planes! Go-karts,
   anything!! All the experimental/homebuilt forums, survivalist/prepper
   forums even. It'll be a hit!! Like you said Paul, ulta-lights and LSA! I
   don't understand why they haven't done this sooner, it would only
   increase rotary awareness and open peoples eyes to the truth. Rotary
   Piston. Period. I've personally found that even those who drive Mazda
   rotary powered vehicles are completely ignorant (50% or more) of the
   engine and if they have any idea whatsoever, its some nonsense about
   them being complicated, apex seals only last 50k miles, blah-blah. I've
   personally felt Mazda has never been quite aggressive enough with
   educating the masses or even more importantly, their own customers.

   I'd just finished rebuilding a Toyota 5M-GE (DOHC, straight 6, hydraulic
   lifters, timing belt/rubber band), when I tore down my 6 port 13B, I was
   literally like: "This is it? That's all there is to it?!". I loved it!!

   The 5M-GE had failed, blown head gasket, between 5 & 6. Why? Because the
   EGR system is routed through the back of the head and wraps around back
   into the intake, which also causes the lifters to stick/jam due to
   contaminated oil (3 were stuck) and of course causes the head to heat up
   unevenly, which caused the BHG. Dominoes. BLAH. Rotary for the WIN.

   -Dan

   Don't get your expectations up too high. Range extender electric cars
   like the Chevy volt
   and the new Mazda are not real cars. The engine (or motor) in there is
   not up to open
   road passing and climbing long hills. That is why real cars have 250 HP
   and up.
   OK for large flat cities like Tokyo and LA. The rotary will get you home
   after
   the battery dies.

   However it will be interesting as this is a clean sheet rotary.
   Something that
   has not happened in a production car for the last 50 years. I can't wait to
   see the Mazda engine geometry and ignition system. I will be very
   disappointed
   if it has smart coils.  I have slowly come to the conclusion that the only
   ignition matched to the rotary is a continuous arc or many sparks CD.
   Smart coils by their very nature can only fire once or twice at real low
   RPM.

   Paul Lamar

Please forgive my ignorance and tell me about "smart coils."  What are they?
Bob Young

They are ignition coils that contain an amplifier and a high current solid state switch.
They can be controlled directly from the computer by a zero to 5 volt signal.

They generate a spark by rapidly collapsing  a magnetic field. (AKA turning the current off.)
This field is produce by a high current in the primary. Due to the inductance of the
primary it takes a minimum of 4 ms to generate the field.

They are cheap and widely used on most cars today. One coil per spark plug.

At 7500 RPM a rotary goes through a complete expansion cycle
in only 7 ms. Therefor there  is not enough time for multi sparks from a
smart coil. A capacitor discharge ignition can generate dozens of sparks in 7 ms.

However it takes 300 volts to charge the capacitor. That is why I am working
on a low cost 300 volt supply that will work with only 12 volts input.

Paul Lamar



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