O 16581 72452 5

I was reading in my book and studying for class, i see the rotary engine and begin reading. "the rotary is much like a piston engine being on that it is a two-cycle", next i read "Rotariess cannot compete to a piston engine's durability and reliability" I can't believe they hired such biased people to write this book, how is it even possible to compared a rotary to a two-cycle? Rotaries do not lose compression out the exhaust nor does the intake "stroke" interfere with the exhaust "stroke". I'm definately going to correct the book when we go over the chapter in class next week.

Gregs

haha
everyone who isint familiar with the good ole wankel thinks they are weaker and less reliable that pissed-on's

i hate these kind of people.... this supra kid i know (we call him supra kid cause he is a jackass and dosent know ****, oh yeah and he drives a mk3 supra) thinks that rx-7's are heavy and cant handle better than a supra... i laughed my *** off.. and he tried argueing the weight of my car witgh me for like an hour...

-greg

O 16581 72452 5

Open your door, point to your curb weight, then open his door and point to his curb weight.

hornbm

Oh yeah? Get this. In my calssroom book, it says for a rotary engine "...the crankshaft is replaced by the eccentric shaft and the camshaft is replaced by the rotor shaft." This was the mitchel by the way. Would someone mind telling me what the **** a rotor shaft is? Stupid book.

O 16581 72452 5

Mine refered to the eccentric shaft as the crankshaft.

AdrenalifeRX7

Exactly how old is the shop book you are reading?

Jeff20B

iTrader: (13)

I've got one from '83 that does a decent job of showing the Mazda and NSU rotaries. It shows a 10A rotor from the side (you can see the dual side seals etc) inside a rotor housing and the side plate can be seen behind it. It also shows the P port intake and exhaust of the NSU.

Ok I just got it off the shelf. It's a Goodheart-Willcox automotive encyclopedia fundamental principles, operation, construction, service, repair

Here is an excerpt:
There are approximately 630 parts in a Wankel engine compared to about 1050 parts for a piston engine. Ports are used instead of valves, eliminating the need for the complicated valve train of the piston engine.

A Wankel engine weighing 237 lbs. will produce approximately the same power as a conventional V-8 weighing over 600 lbs.

It goes on and on. Man, you guys got screwed. Or maybe the gubmint wants to get rid of accurate rotary info or something. Next thing you know they'll be writing books explaining that it's ok to rev an RX-7 really high. Heh that seems to be what the ignorami out there keep passing along to each other (like the clap).

Jeff20B

iTrader: (13)

Oh yeah, this book shows that a rotary mimics ALL FOUR 'strokes' of a conventional piston engine. It follows an NSU rotor through four phases showing suck, squeeze, bang, and blow (not using these exact words of course lol).

Hey O 16581 72452 5, if your book is that wrong about rotaries, I'd suspect the rest of it is full of garbage as well. Please correct it in class. That will be a great day. The student will become the master, or uh the teacher, yeah.

O 16581 72452 5

This book is brand new, Nate. I'm actually going to bring in a rotor, rotor housing, and side plate. I will then explain and demonstrate why it is wrong.

onepointone

that sucks, my auto tech book last year did an ok job, it showed a cross section detailed drawing of a 12a (which was cool). it showed another detailed drawing of one being put together. it was on its site, rotor being put over the e-shaft into the housing. blah blah blah.

but my teacher was a old mustang guy. i happened to have a rotor and housing in my car one day that i was showing my friend, and i brough my car in and showed the class, he walked away and did his own thing while i told a couple how it worked.

my shop book this year doesnt even mention rotaries though.

O 16581 72452 5

My teacher happens to love rotary engines, he brought them up our first day of class. I talked with him after class about it, then asked if it was okay for me to bring in parts of one, he replied "SURE! we don't get to see those very often, those engines are hard to come by. The torque curves on those rotaries are AMAZING!"

rotary emotions

When I was at school we had an FD engine (long block) in the classroom as "decoration". Not that any teacher understood the Rotary...

85rotarypower

My auto shop at school has an 89 ( I think) engine on a stand. This is more than just the long block though. It includes the transmission, and almost everything on the engine. It doesn't run, thats why it was donated to the school. We don't focus on it too much. My teacher likes it as a decoration. I probebly know more about it than he does.

fatboy7

Ah the saying.... Those who can, do. Those who can't teach.

Metallic_rock

there was a 12a rotary in the autoshop... teacher showed it to us once and said "stay away from rotary engines, they won't last more than 100,000 miles and they have no power." He did a very short explanation on how they work, and that's it.

chairchild

I've had someone on a "Boy-racer" site try to argue that a rotary is ****-poor on EVERYTHING!!!

*Won't last past 80K
*Can't rev higher than 6K
*you get 10mpg standard
*and that it's impossible to get more than 80Nm torque

Seems the "Boinger" groups won't accept the threat we pose to their performance -

Run them into the ground

85rotarypower

NO, it seems the boinger group can't accept a 1.1L or 1.3L engine making over 300hp in NA form. Totally unheard of in a piston engine. It requires at least 2L of displacement and a turbo before a piston engine to reach 300hp.

I know there aren't many out there, but there are PP engines that make over 300hp without a turbo.

rxtasy3

iTrader: (2)

I'll have to look to see what year and the auther, but I have a book that has those exact words in it. It may be the same one.

Jeff20B

iTrader: (13)

It's a popular book. Good in many ways.

rotary emotions

It is a real problem that boinger people don't even try to understand what makes a rotary better, and what are it's weaknesses. I have to say, apart from fuel consumption, there are no weaknesses anymore.
The simple fact that we have a first gen forum prooves that. I mean, these cars are like 18-25 years old, and we still run them, and not exactly as oldtimers.
Unknown makes unloved, I guess...
At school we didn't talk about rotaries to much, I was the only one who knew anything about them anyway. That's about 8-10 years ago now, and my old teachers had all known NSU. So they should have known something... Oh, well, at least we know that there's nothing sweeter then th "hmmmmmm" of a rotary on a summer night...

Jeff20B

iTrader: (13)

I too was the only one in class that knew anything about rotaries. 8 to 10 years ago for me too.

Magnus Berglund

I got one of these.. pretty nice..



//Magnus

Gatorgunner

hey how do i get one of them, thats cool!

Gatorgunner

hey how do i get one of them, thats cool!

chairchild

I might soon have one

just depends if i can find someone near me who can do it cheaply!!