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
Dan,Thanks for the background on the MKIII engine. I am just
putting mine back together now as well as my rotary projects, which
are all cars. Interesting to hear that the problem was the heat of
the EGR that was the issue.
Regards
ray Hellstrom
Ray,
Make sure to torque the head bolts to @ least 75ft lbs (I did 80ft
lbs), the reason being is the OEM 58ft lbs was for asbestos gaskets,
its not enough torque/pressure for the composite gaskets (which also
contributes to BHG) Some people have gone as high as 115ft lbs on the
head-bolts. I figured 80 would be fine, it was. I also deleted the
EGR system: 2 aluminum block-off plates and a couple vac-caps is all
it takes (Here in WA, for now, cars 25yrs and older are exempt from
emissions). My engine was in an '86 Toyota Cressida, (same engine
that's in a Mk2 Celica-Supra) w/5spd and LSD (VERY fun sedan!),
engine sits so close to the firewall it would be impossible to
properly delete the EGR while its still in the car, so I did it
before I reinstalled it. Easy breezy. Would love to swap a
Peri-ported 20B into one someday... ;-D
-Dan
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