what's the diff btw rotary engine and normal engine?
10-20-2005, 11:32 AM
#46
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^^
Yes we all learned the theory in High School auto class but let's put it into practice. A rotary will not last longer, maybe the individual parts will show less ware over time but the motor's ability to funaction as a whole will not outlast piston engines in general.
Yes we all learned the theory in High School auto class but let's put it into practice. A rotary will not last longer, maybe the individual parts will show less ware over time but the motor's ability to funaction as a whole will not outlast piston engines in general.
10-20-2005, 05:35 PM
#49
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^ Ironic how all of the people here posting about a rotary engine have never owned or worked with a rotary powered vehicle, yet they want us to believe what they are saying because they read about it on the internet... hahaha.
Yes it's a triangle shaped piston inside of a giant cylinder, yeah that's it. Wow, please only add something if you're to add something WORTH adding.
Originally Posted by Young gun
Allright thought i might add something to this,
look at it this way, inside a combustion engine you have many parts moving up then down these create forces that go against eachother. This also creates strong vibrations. Now inside a Wankel engine is basically a huge cylinder with a triangle shaped piston that is spinning on an axis. This cancels out many of those strong vibrations and also prolongs the life of the engine. There are few parts that can go bad inside a wankel engine. The only problem i see is that to date only Mazda has been fully successsful further engeneering these engines and putting them into production cars. Another plus is that given the small physical size of these enginest they are able to be mounted in more remote locations providing better weight distribution in the rx-8's case a perfect 50/50
look at it this way, inside a combustion engine you have many parts moving up then down these create forces that go against eachother. This also creates strong vibrations. Now inside a Wankel engine is basically a huge cylinder with a triangle shaped piston that is spinning on an axis. This cancels out many of those strong vibrations and also prolongs the life of the engine. There are few parts that can go bad inside a wankel engine. The only problem i see is that to date only Mazda has been fully successsful further engeneering these engines and putting them into production cars. Another plus is that given the small physical size of these enginest they are able to be mounted in more remote locations providing better weight distribution in the rx-8's case a perfect 50/50
11-02-2005, 11:44 AM
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Originally Posted by B6T
Hahaha... ok if you say so... High cylinder pressures eh? You definatly know what you're talking about.
If you like I can scan a few pages from my SAE Internal Combustion Engine text book which shows you how to calculate cylinder pressure.
Just what the hell do you think a compression stroke is for????
11-02-2005, 11:58 AM
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Originally Posted by B6T
^ Ironic how all of the people here posting about a rotary engine have never owned or worked with a rotary powered vehicle, yet they want us to believe what they are saying because they read about it on the internet... hahaha.
Originally Posted by B6T
Yes it's a triangle shaped piston inside of a giant cylinder, yeah that's it. Wow, please only add something if you're to add something WORTH adding.
What have you added other than idiotically claiming that well known facts are incorrect without actually presenting anything to substantiate your claims.
11-05-2005, 05:05 PM
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Originally Posted by cL0wn_p3n0r
You're a moron.
If you like I can scan a few pages from my SAE Internal Combustion Engine text book which shows you how to calculate cylinder pressure.
Just what the hell do you think a compression stroke is for????
If you like I can scan a few pages from my SAE Internal Combustion Engine text book which shows you how to calculate cylinder pressure.
Just what the hell do you think a compression stroke is for????
And why do you need to scan pages from a text book... you don't understand it enough to be able to explain it yourself?
11-05-2005, 05:33 PM
#54
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Originally Posted by cL0wn_p3n0r
One does not need first hand experience to know its tremendous shortcomings when compared to the conventional piston engine or the fact that it's a piece of crap. If anything, it is quit evident that you don’t know anything about the rotary engine.
The irony is quite amusing.
What have you added other than idiotically claiming that well known facts are incorrect without actually presenting anything to substantiate your claims.
The irony is quite amusing.
What have you added other than idiotically claiming that well known facts are incorrect without actually presenting anything to substantiate your claims.
I never claimed to know everything there is to know about a rotary engine, I'm still learning. And I'm not trying to say that they are the best type of engine in the world, I'm just trying to say that they aren't the piece of that everyone thinks they are... sure, they have their downfalls but so does a piston engine. I will agree that a 100% factory stock rotary engine sucks for the most part. But once you get into reworking everything with porting, better seals, housing coatings, more precise fuel management, and turbocharging, then you will start to see the advantages of a rotary. A rotary with well engineered modifications is a far cry from a bone stock rotary which are the ones that guzzle fuel and spew pollutants. The problem here is that the particular rotary engine that I spend the most time with is far superior then anything most people on this board have seen or heard about.
11-07-2005, 05:48 PM
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Originally Posted by tsisean
Funny that "imports over rateing HP" and "rotaries" came up in the same thread. Mazda Overrated the HP in the RX-8 BIG time and had to offer refunds to everyone that got them. LOL.
All I have to say about rotaries is this, how many V8, 4 cylinder Turbo swaps do you see in an RX-7. How many Rotary swaps do you see in... anything? Alot more of the first, a lot less of the second.
All I have to say about rotaries is this, how many V8, 4 cylinder Turbo swaps do you see in an RX-7. How many Rotary swaps do you see in... anything? Alot more of the first, a lot less of the second.
11-14-2005, 10:29 PM
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Originally Posted by B6T
I'm a moron yet you're the one using the incorrect terminology. Tell me where there are cylinders in a rotary engine? Perhaps you meant to say combustion chamber pressures... that would be a more descript phrase to use considering a rotary engine doesn't have a cylinder to contain pressure, it has a chamber.
Originally Posted by B6T
I never claimed to know everything there is to know about a rotary engine, I'm still learning. And I'm not trying to say that they are the best type of engine in the world, I'm just trying to say that they aren't the piece of that everyone thinks they are... sure, they have their downfalls but so does a piston engine.
Originally Posted by B6T
I will agree that a 100% factory stock rotary engine sucks for the most part. But once you get into reworking everything with porting, better seals, housing coatings, more precise fuel management, and turbocharging, then you will start to see the advantages of a rotary.
Originally Posted by B6T
A rotary with well engineered modifications is a far cry from a bone stock rotary which are the ones that guzzle fuel and spew pollutants. The problem here is that the particular rotary engine that I spend the most time with is far superior then anything most people on this board have seen or heard about.
01-30-2006, 10:30 PM
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got a good laugh out of this thread.
i see many people who are mis-informed.
then i see some of them get worked up and argue over it because they can't accept the notion of possibly being "wrong".
what a joke!
i see many people who are mis-informed.
then i see some of them get worked up and argue over it because they can't accept the notion of possibly being "wrong".
what a joke!
05-20-2006, 02:56 PM
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If a single body were to invest the same amount of money in developing the wankel as they did to develop the piston, it'd be a MUCH better unit. I see the shortcomings of it, but it's a GREAT feat of engineering. EASIER to work on, and contrary to popular belief, very reliable. Skip maintenance on any high performance engine and tell me how that goes. Take a 4banger and boost it to 22psi and tell me how long it lasts. Show me the bill on an engine rebuild of a normal engine compared to that of the rotary. Why did chevy, and mercedes dabble in making rotary powered cars if the engineers didn't see the potential in it?
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