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Brand new Rotary for 2010

 
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Old May 28, 2007 | 07:23 PM
  #301  
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I know you joking, but I figured I'd respond seriously, with only produce a $35,000 there would be a much lower volume of sales. With fewer cars to spread fixed costs among, cost per car would climb drastically. The price would have to go up.
Old May 30, 2007 | 02:13 AM
  #302  
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Originally Posted by kartweb
2) Add a secondary energy regeneration device downstream of the exhaust. Ideally something like a variable vane turbine on the front side of the motor. At a steady state 70 MPH level road cruise 8-9 HP could be recovered from a turbine - which would bump gas mileage to an honest 30 MPG.
Just a side note on your #2. Turbocompounding is mostly limited to very large engines (trains, heavy machinery, large ships) due to cost. Even truck engines don't use this technology, because it is just too expensive to implement in a useful manner in small, cheap engines, even in ones as costly and fuel-conscious as long haul truck engines that can already use variable vane turbines.
Old May 30, 2007 | 07:24 AM
  #303  
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Originally Posted by SmokeyTheBalrog
I know you joking, but I figured I'd respond seriously, with only produce a $35,000 there would be a much lower volume of sales. With fewer cars to spread fixed costs among, cost per car would climb drastically. The price would have to go up.
OK, just look at the other mazdaspeed models, theyr starting price is the same as a fully loaded normal model, you could expect the same for a MS8
Old May 30, 2007 | 12:48 PM
  #304  
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Is it 2010 yet? Hurry up and bring on the new motor. Think it will be compatible for an engine swap on the current 8?
Old May 30, 2007 | 05:55 PM
  #305  
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Originally Posted by baseballgenius80
Is it 2010 yet? Hurry up and bring on the new motor. Think it will be compatible for an engine swap on the current 8?
Not sure you hangout in the Lounge, so here's a Happy Birthday hijack for you!!!
Old May 31, 2007 | 04:59 PM
  #306  
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Originally Posted by SmokeyTheBalrog
I know you joking, but I figured I'd respond seriously, with only produce a $35,000 there would be a much lower volume of sales. With fewer cars to spread fixed costs among, cost per car would climb drastically. The price would have to go up.
They only build a few thousand of the Mazdaspeed MX-5, and it had many changes. Engine internals, turbo, clutch, transmission, suspension changes, unique wheels, interior bits, etc.

It only cost about $1k more than a Miata LS.
Old Jun 1, 2007 | 11:37 AM
  #307  
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But how may of those changes where taken from other cars?
Old Jun 5, 2007 | 07:38 PM
  #308  
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Probably very very few, if any.

No other cars in Mazda's lineup had the same turbo BP engine (BP-4W, not BPT). No other cars had the same clutch, suspension, transmission, interior bits, etc. The NB Miata was on a unique platform and shared few parts with other Mazdas, the Mazdaspeed NB even fewer. In fact, Mazda's marketing literature for the MS NB claimed that there were several *thousand* changes.

Last edited by m477; Jun 5, 2007 at 07:41 PM.
Old Jul 14, 2007 | 09:05 AM
  #309  
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People have mentioned all aluminum. I would think Mazde would have already done this if it were possible. They spent a lot of time and effort (read money) working on seal materials to allow for the heat expansion differences between the rotor housings side housings and rotors. If all could be made from aluminum, i think they would have done it.

The flooding issue could easily be solved by ECU timing, without even warming the engine up. The car could rev up to 3000 rpms, and the the ECU would simply shut off the fuel. As the engine slowed doen to a stall, the air moving through would dry out the cumbustion chamber. it would be a pretty cool affect, to have the engine rev itself as it shut off.

I would love a next gen RX8 with similar overall design, 200-300lb less weight, and 10-20% more NA horsepower. I'd immediately trade up, even at a premium unincented price.
Old Jul 14, 2007 | 09:22 AM
  #310  
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I have this idea, a larger center housing, with aux ports and instead of siamesse exaust ports two ports just like the ones in the side housings, instead of 6 intake ports 8 intake ports.
Old Jul 14, 2007 | 07:12 PM
  #311  
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Originally Posted by RX8Maine
People have mentioned all aluminum. I would think Mazde would have already done this if it were possible. They spent a lot of time and effort (read money) working on seal materials to allow for the heat expansion differences between the rotor housings side housings and rotors. If all could be made from aluminum, i think they would have done it.

The flooding issue could easily be solved by ECU timing, without even warming the engine up. The car could rev up to 3000 rpms, and the the ECU would simply shut off the fuel. As the engine slowed doen to a stall, the air moving through would dry out the cumbustion chamber. it would be a pretty cool affect, to have the engine rev itself as it shut off.

I would love a next gen RX8 with similar overall design, 200-300lb less weight, and 10-20% more NA horsepower. I'd immediately trade up, even at a premium unincented price.
all aluminum has been done in the aftermarket, its just a cost issue. the rotary is already so low production as it is, its hard to justify the cost as there aren't enough engines to spread it around.

if mazda starts offering rotary electric hybrids, then we will start seeing some real changes as they can spread the cost out among many models.

they next rotary will be DI and all aluminum, I would bet money on that.
Old Jul 14, 2007 | 08:11 PM
  #312  
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Originally Posted by brillo
they next rotary will be DI and all aluminum, I would bet money on that.
That's what I've been hoping for, wonder what the real world gains in hp, weight savings, and fuel economy would be. For the uninitiated some kind of easy oil read/fill option would be helpful. I honestly wouldn't change anything else on the car, except offer the GT without a sunroof (like in Canada) and a better radio/USB/mp3 and a dashboard readout that doesn't look like a 1970s digital clock radio.
Old Jul 14, 2007 | 11:04 PM
  #313  
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Originally Posted by RX8Maine
People have mentioned all aluminum. I would think Mazde would have already done this if it were possible. They spent a lot of time and effort (read money) working on seal materials to allow for the heat expansion differences between the rotor housings side housings and rotors. If all could be made from aluminum, i think they would have done it.

The flooding issue could easily be solved by ECU timing, without even warming the engine up. The car could rev up to 3000 rpms, and the the ECU would simply shut off the fuel. As the engine slowed doen to a stall, the air moving through would dry out the cumbustion chamber. it would be a pretty cool affect, to have the engine rev itself as it shut off.

I would love a next gen RX8 with similar overall design, 200-300lb less weight, and 10-20% more NA horsepower. I'd immediately trade up, even at a premium unincented price.
The engine in the 67 Cosmo 110S was all aluminum by the way.
Old Jul 15, 2007 | 01:10 AM
  #314  
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i wish they'd make a 4 rotor turbo'd rotary for 2010.....
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pie
Old Jul 17, 2007 | 02:56 PM
  #315  
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mazda already has prototype rx8's with a different rotary engine and tranny but in present rx8 exterior form driving around vegas, theres 3 i seen there all ti grey w/small blue stickers on the fender that look like a bar code, i talked to mazda rep and told me that they were 2010 motors that they are testing in the heat.i asked if i can take a look at the engine but he said he couldnt do that.
also theres a black twin turbo rx8 sitting in mazda corp irvine that also is a prototype.

Last edited by Mikeluvs8; Jul 17, 2007 at 02:59 PM.
Old Jul 17, 2007 | 03:39 PM
  #316  
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I heard the same, there are some rx-8's with prototype engines running around, they look non change on the out side, the expecs of the engines are not known
Old Jul 17, 2007 | 05:58 PM
  #317  
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Originally Posted by Mikeluvs8
mazda already has prototype rx8's with a different rotary engine and tranny but in present rx8 exterior form driving around vegas, theres 3 i seen there all ti grey w/small blue stickers on the fender that look like a bar code, i talked to mazda rep and told me that they were 2010 motors that they are testing in the heat.i asked if i can take a look at the engine but he said he couldnt do that.
also theres a black twin turbo rx8 sitting in mazda corp irvine that also is a prototype.
did they sound any different?
Old Jul 17, 2007 | 07:51 PM
  #318  
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If ZOOM saids it, its almost oficial

ill tell you what i heard today from what i consider to be a credible source-

you all know how dedicated (possibly "obsessed") the rotary engineers are at Mazda- often working on their own time like during the "creation" of the renesis. Well they have apparently again been burning the mid-night oil on the "renesis 1.5/2.0 project" to the point that some of them were quite clearly exhausted. So Mazda has given them all a mandatory vacation for a little while.


check it out https://www.rx8club.com/rx-8-media-news-11/2010-2011-rx-7-motortrend-article-122075/page5/
Old Aug 9, 2007 | 10:14 AM
  #319  
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Originally Posted by rotary crazy
If ZOOM saids it, its almost oficial

ill tell you what i heard today from what i consider to be a credible source-

you all know how dedicated (possibly "obsessed") the rotary engineers are at Mazda- often working on their own time like during the "creation" of the renesis. Well they have apparently again been burning the mid-night oil on the "renesis 1.5/2.0 project" to the point that some of them were quite clearly exhausted. So Mazda has given them all a mandatory vacation for a little while.


check it out https://www.rx8club.com/showthread.php?t=122075&page=5
I beat you to that...

It was like a page or two back but no one payed any attention to me.
Old Aug 9, 2007 | 11:56 AM
  #320  
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Originally Posted by Mikeluvs8
mazda already has prototype rx8's with a different rotary engine and tranny but in present rx8 exterior form driving around vegas, theres 3 i seen there all ti grey w/small blue stickers on the fender that look like a bar code, i talked to mazda rep and told me that they were 2010 motors that they are testing in the heat.i asked if i can take a look at the engine but he said he couldnt do that.
also theres a black twin turbo rx8 sitting in mazda corp irvine that also is a prototype.
Given the 117 degree temperatures when i was in vegas a month ago, it would seem like a good place to do heat testing

twin turbo prototype..mmmmmmm
Old Aug 9, 2007 | 12:32 PM
  #321  
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I just like that Mazda seems to have money to play with in regards to to rotary I guess thats what they get for having suck a killer all-a-round line up like they do...
Old Aug 9, 2007 | 01:55 PM
  #322  
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Yes. The Mazda3 and Mazda6 were built to pay for their rotary habit.
Old Aug 9, 2007 | 08:31 PM
  #323  
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Originally Posted by cavemancan
I beat you to that...

It was like a page or two back but no one payed any attention to me.

I did see it but latetly people are only paying attention to things like "MY ENGINE BLEW", " THE RX-8 ITS GOING TO BE DISCONTINUED", I JUST JOINED THE DEAD ENGINE CLUB" if you post anything else most people dont see it or dont care
Old Aug 9, 2007 | 09:08 PM
  #324  
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Not everyone thinks the sky is falling.
I am vigorously pursuing the I SAVED MY ENGINE FROM CERTAIN DEATH threads.
Old Aug 9, 2007 | 09:34 PM
  #325  
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I suspect we are going to see a revision to the engine in some way before the end of the RX-8 lifespan/generation. I don't think we'll see any dramatic power increase but I bet with the problems that people have had that we'll see some form of an updated oil metering system.


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