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Old Mar 19, 2008 | 07:37 PM
  #226  
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Originally Posted by rotarygod
You can specially build an engine with higher compression and more aggressive timing to take advantage of ethanol but even then you are only trying to recover the power you lost. You'll get close. In a straight swap for swap basis, ethanol is not more powerful than gasoline.

Shhh, RG, don't tell that to my dyno.
Old Mar 19, 2008 | 10:33 PM
  #227  
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3 injectors! the 09 will certainly live up to the oil burner reputation of the rotaries!
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Last edited by Renesis_8; Sep 11, 2011 at 02:38 PM.
Old Mar 20, 2008 | 05:45 AM
  #228  
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Originally Posted by Renesis_8
3 injectors! the 09 will certainly live up to the oil burner reputation of the rotaries!
I wouldn't be too sure about this. I mean, having one more injector per rotor means that the lubrication system can place the oil where it's needed, not just throw it in. The dual OMP design also points in this direction.
So it's possible (IMHO) that the total oil injection volume remains more or less constant, while improving general lubrication due to better oil distribution.
Old Mar 20, 2008 | 07:18 AM
  #229  
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I suspect that they will be able to reduce the oil consumption through this increase in precision. Now if it were possible to implement ceramic seals into the production car oil metering could be further reduced. Hmmm, one can always dream.

Paul.
Old Mar 20, 2008 | 09:05 AM
  #230  
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Originally Posted by Renesis_8
3 injectors! the 09 will certainly live up to the oil burner reputation of the rotaries!
Oil consumption has steadily decreased since the mid-80's in every new car brought out.

The EPA doesn't like oil burners.

Yet the let industry rain toxic debris over the nation.
Old Mar 20, 2008 | 09:49 AM
  #231  
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I think rotaries are the engine of the future... it will continue to improve till 1 day honda and toyota will start to copy it becos its such a great design... they r just waiting for mazda to get it right.. then it will be a world phenomenon
Old Mar 20, 2008 | 10:43 AM
  #232  
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I agree with you. With all the stuff on the 16x coming out, and the Hydrogen RE, direct-injection, Ethonol capabilities etc. I think their only starting to scratch the surface of the rotaries capabilities. Of course now it doesn't seem very eco/fuel friendly, but that's because only now is there markets being created for those types of powerplants. Not only that, but isn't the rotary more useful in trying different metals and seals versus piston engines?
Old Mar 20, 2008 | 10:56 AM
  #233  
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Originally Posted by Renesis_8
3 injectors! the 09 will certainly live up to the oil burner reputation of the rotaries!
Instead of injecting more oil to cover up for insufficient oil distribution, they will inject just enough to all the places that need it... I would expect oil usage to be the same.
Old Mar 21, 2008 | 09:51 AM
  #234  
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Originally Posted by WarmFreedom
I think rotaries are the engine of the future... it will continue to improve till 1 day honda and toyota will start to copy it becos its such a great design... they r just waiting for mazda to get it right.. then it will be a world phenomenon
That would be a great deadpan delivery if you were joking. I hope you are.

Inherently poor thermodynamic efficiency due to the large area the charge sweeps through.

Inherent upper limit on compression, due to the charge having to pass through the bowl on the rotor.

You can't change the inlet and exhaust event timing ("cam profiles") without also changing the port shape and size.

You can't change the port size at the chamber without changing the event timing.

Once you've built the engine, all of the above are fixed. No VTEC-like function, no variable cam timing function.

Injecting oil into the chamber, rather than working to keep it out.

Nearly zero tolerance for detonation.

If the rotary was proposed today, nobody would pursue it.

I didn't come here to hate on rotaries, but statements like the one above just leave me shaking my head. The RX-8 is a sweet car, but it would be soooo much better with a 2.3L turbo piston motor. 300 hp at the wheels with basic bolt-ons, tons of torque and 30+ mpg on the highway. I hate that I'll be killing polar bears just to get the chassis I want to drive. When you look at it that way, it's no different than an SUV. Except that what I want to drive is cooler.
Old Mar 21, 2008 | 10:03 AM
  #235  
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Originally Posted by Jedi54
back to this...
2 pumps? It's all electronic now, isn't it?
Originally Posted by Easy_E1
No wonder I couldn't see them. On top of the engine.
Do you have any pics Paul?
Originally Posted by Mazmart
That's what I heard. I'm looking at a diagram actually and it appears that they are like a two stage affair. One pump is feeding 4 lines and the other, 2 (Probably the more centralized ones for the apex seals).

Paul.
Originally Posted by Mazmart
I wish I did.

PT
Originally Posted by Easy_E1
Darn.
Anybody in Japan have a camera and a 2009 handy? Pop the hood and snap some pics under the cover.
Originally Posted by Easy_E1
I should have taken the engine cover off when I had the chance.
hell , boys why didnt you just ask you want a 2009 with the cover on?





or with the cover off?












maybe between Paul's diagram and this photo we can figure out what were looking for?
Attached Thumbnails 16X Technical observations-2009coveron.jpg   16X Technical observations-2009coveroff.jpg  
Old Mar 21, 2008 | 10:41 AM
  #236  
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You'd need the upper intake off to see what I'm talking about.

I must point out at this time that Zoom was the first person to mention to me changes in oil systems for 09 and that was quite some time ago .

Paul.
Old Mar 21, 2008 | 10:43 AM
  #237  
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aren't there rules in autocross that don't allow that kind of front brace? but if it's stock, it'd have to be allowed right?
Old Mar 21, 2008 | 10:50 AM
  #238  
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thanks for the credit Paul i figured they must be under the manifold- nothing to see with just the cover off really(as far as oiling is concerned- theres that new Brake distribution block and maybe one or 2 other things)
Old Mar 21, 2008 | 11:03 AM
  #239  
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Originally Posted by SolarYellow510
The RX-8 is a sweet car, but it would be soooo much better with a 2.3L turbo piston motor.
You can't be serious. That's like saying a dog is a great pet, but it would be soooo much better if it was... a cat.
Old Mar 21, 2008 | 11:05 AM
  #240  
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Originally Posted by FloppinNachos
aren't there rules in autocross that don't allow that kind of front brace? but if it's stock, it'd have to be allowed right?
yes, if it's stock, it's allowed (it has to be). what you can change depends on the class.
Old Mar 21, 2008 | 11:25 AM
  #241  
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Originally Posted by New Yorker
You can't be serious. That's like saying a dog is a great pet, but it would be soooo much better if it was... a cat.
Not to mention it would be difficult at best to get the same handling characteristics and center of gravity with a piston motor.
Old Mar 21, 2008 | 11:33 AM
  #242  
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Difficult at best? try impossible.

That's almost the entire reason to use a rotary engine. Sure, you have smooth power delivery and other cool things about the rotary, but the rotary is so small and light it makes an unbelievably good handling car. I don't think a lot of you realize how important the CoG is to handling.
Old Mar 21, 2008 | 11:33 AM
  #243  
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To each his own but the Rotary speaks to my soul, like good music does .

Paul.
Old Mar 21, 2008 | 11:37 AM
  #244  
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Originally Posted by New Yorker
That's like saying a dog is a great pet, but it would be soooo much better if it was... a cat.
actually i agree with that statement
Old Mar 21, 2008 | 04:22 PM
  #245  
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Originally Posted by New Yorker
You can't be serious. That's like saying a dog is a great pet, but it would be soooo much better if it was... a cat.
Depends on the type of "cat" we are talking about.
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Old Mar 22, 2008 | 01:41 AM
  #246  
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Originally Posted by New Yorker
You can't be serious. That's like saying a dog is a great pet, but it would be soooo much better if it was... a cat.
Try this... I love your dog, but she would be so much cooler if she didn't instantly **** all over the floor when I pet her.

I'll respect the title of this thread now.
Old Mar 22, 2008 | 06:59 AM
  #247  
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Originally Posted by SolarYellow510
Try this... I love your dog, but she would be so much cooler if she didn't instantly **** all over the floor when I pet her.

I'll respect the title of this thread now.
Obviously you need to learn how to pet a dog properly
Old Mar 22, 2008 | 08:24 AM
  #248  
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I think this thread is going to the dogs unless someone can say what type of cat will be used on the 16x engine for emission purposes.

Back to your regularly scheduled program.

Seal.
Old Mar 22, 2008 | 11:26 AM
  #249  
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we know what kind of cat will be used on the 16x for emissions purposes. they were telling us that near the end of last year. how quickly everyone forgets

http://www.nzherald.co.nz/section/9/...467609&ref=rss
Old Mar 24, 2008 | 01:25 PM
  #250  
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What are the best guess these days on when the 16x will get to production and how much power will this engine have?


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