New Mazda RX Vision concept

[Leonardo]

via Imgflip Meme Generator

[funwheeldrive]

If I owned a RX8 I would wrap the car in camo and put in some fake radiators just to mess with people.

[vh_supra26]

[LancePower]

I've never seen a test mule with those wheel hub thingies on before.

[gymratter]

Originally Posted by LancePower

I've never seen a test mule with those wheel hub thingies on before.

MB had something similar.

[cdrazic93]

I wonder if part of their "cooling" issues mazda is running into is because theyre using the RX8 body. One could design a passive airflow design that allows for heat vents and side vents and have the space for those extra cooling bits. Don't know. Not an engineer.

[reni]

Alternate possibility - what if Mazda is actually planning is not a rotary but a new coupe based on their turbo 4?

[Spuds]

Originally Posted by cdrazic93

I wonder if part of their "cooling" issues mazda is running into is because theyre using the RX8 body. One could design a passive airflow design that allows for heat vents and side vents and have the space for those extra cooling bits. Don't know. Not an engineer.

Well, if this really is just a power train mule, it's likely they have extra cooling capacity to experiment with. It's cheaper to design a one-off cooling system with more capacity than you need and some active valves to control how much of that cooling capacity you actually use, than it is to design 10 one-off cooling systems and rotate through them.

They also probably have a million sensors and computers in the car that you can't see, which need ventilation as well.

You are also correct that the rx8 is likely not aerodynamically optimized for said cooling system.

Alternatively, Mazda could just be throwing something that looks cool out there to gauge interest or simply mess with people. I certainly would do something like that if I knew photographers were waiting to 'spy' something interesting.

[vh_supra26]

The Mazda mule can be seen for a few seconds around the 10:50 mark.

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[strat61caster]

next gen gt86/rx9 confirmed, built in USA, likely a Corvette killer for $19k, mid-engined?
brz to go turbo diesel awd shooting brake
probably changing over in 2019 for the 2020 model year, if Fiat can do a 2 year car I have faith in Toyota

http://www.autonews.com/article/2018...autonews-blast

[Rampage]

Originally Posted by strat61caster

next gen gt86/rx9 confirmed, built in USA, likely a Corvette killer for $19k, mid-engined?
brz to go turbo diesel awd shooting brake
probably changing over in 2019 for the 2020 model year, if Fiat can do a 2 year car I have faith in Toyota

http://www.autonews.com/article/2018...autonews-blast

Are you trying to get a job with that highly reputable Australian automotive news site?

[strat61caster]

Originally Posted by Rampage

Are you trying to get a job with that highly reputable Australian automotive news site?

I'm gunning for vh_supra's job, more potential to 'make the world a better place', they're not utilizing the full potential of synergetically copy-pasting articles into forum posts to 'disrupt the industry'

If I can steal viewership from motoring.au all the better, the true measure of 'changing the world' is how hard we millenials can tank 'old business'

[gymratter]

Mazda has a history of interesting engine technologies, from yesterday's rotary engine to tomorrow's compression ignition engine, and new patents show it still may have some internal combustion tricks up its sleeve. The one on display in these patents isn't especially new in concept, though. A sequential twin-turbocharger setup is something Mazda itself used on the third-generation RX-7. But it's something we haven't seen much of lately. It looks like it could have some possible advantages over older sequential systems, and it has some potential advantages for enthusiasts.

First a quick and dirty primer for what makes a sequential twin-turbo system distinct from other twin-turbo systems. In many twin-turbo engines, there are simply two turbos that work together as one bigger turbo. They're the same size, and they spool up at the same time. With a sequential setup, at low rpm, a smaller turbocharger is spooled up first at low-rpm for quicker throttle response, and as the rpm and exhaust pressure increases, a valve opens up that allows a larger turbocharger to also spool up and provide high-rpm boost.

That's basically how the Mazda design shown above functions. A big flap blocks off the larger turbocharger exhaust inlet, channeling all the exhaust to the smaller turbo. When more exhaust is available at high rpm, it looks like that flap opens up to spool up the big turbo, too.



What's interesting here is that the way the turbochargers are packaged takes up less space than past systems. It looks like both turbos are contained in one unit that shares the same exhaust outlet, meaning the exhaust manifold could be kept simple and compact. In fact, the piping for compressed intake air could also be shared, reducing the amount of piping, which would further decrease the amount of materials and possible failure points.

There are a number advantages of making this system smaller. The potential applications of the system are much greater, since it could fit in smaller cars with smaller engine bays. Making the system smaller also means that there won't be as much weight, which is important from both fuel economy and performance standpoints. Finally, the smaller setup likely uses fewer materials, which could make the system cheaper and thus easier to offer on a wider range of vehicles, or at least more profitable for Mazda. And of course, the system could still have the throttle response and power benefits of a more conventional sequential turbocharger setup, depending on how it's optimized.

We do have several unanswered questions. For instance, why would Mazda look into a twin-turbo system when variable-geometry and twin-scroll turbochargers can provide similar results? They also each only use a single turbocharger, which could hypothetically be lighter and cheaper than two. Perhaps the two turbos can provide more effective boost over a greater rpm range. Also, what would this engine go in? We would love to see it power a new high-performance Mazda3, but maybe it would be used for a largr luxury sedan based on the Vision Coupe. Only time will tell. We'll be watching this development closely.

https://www.autoblog.com/2017/12/08/...n-turbo-setup/

[chaoskaze]

Damn it Mazda, please put out an actual product.


It's the race version of their vision concept car.