Interactive 16x Renesis Tech
 

Found this little interactive flash while surfing the internet. Pretty cool talks about the 16x and has some animations to go along with it. Not really any new information, but still cool to use.

http://www.mazda.com/mazdaspirit/rotary/16x/

There are also a few other interactive links along the side to play with.

I think this has been posted before, but I don't care...I love it.

Nice find - especially liked the vids on how to make a rotary engine.

^ yeah i enjoyed that too. Whole thing was cool and informative. Thanks!

this should be required viewing by all rotary owners, lol.

it's a shame that they dont go into a whole lot of detail about the "improved tq" from the DI and changes in dimensions. Can't wait to see what they expect from those... we can all guess, but they could always be higher or lower than anticipated. We should all complain to mazda and get them to replace all of our engines with the 16x under warranty when it comes out :p:

lol please make a boost friendly engine this time no? :)

if its going to the exactly the same size... it would work pretty well going into all old models... if the car is ugly, 16x-fd3s

Indeed it has. Simply search 16x.

can't wait

It looks like I may have to write another tech article.

doesn't it have to do with the larger internal rotor housing shape, allowing the rotor to become larger, allowing for larger eccentric shaft lobes (more eccentricity), which results in a longer torque arm?...or am I way off?

This allows you to play around with different rotor parameters, and shows an illustration of the torque.


http://mikesdriveway.com/engineapp/

your tech articles are always a nice read... but what I was going for is specific numbers they get into an actual production car with it. I'm sure we can figure out a decently accurate range to anticipate, but what matters is what mazda actually releases.

They aren't going to show something like that on an engine that is still 4-5 years out. There'd be no point to it. They are still revising it. All we can do is wait and see. This assumes of course that it will actually become a reality. The current global economics right now may change things.

There are a few things that I can talk about that would seem to make sense as to the reasons given by Mazda for the gains associated with the changes. To describe those I can't just sit down and type out a thread like I used to. I'll have to prewrite it since it'll take some calculations. I'll work on it and we'll open up a discussion session based purely on objective speculation and hopefully in the future we'll all be able to see how accurate our assumptions were. It actually sounds like fun.

do it RG :)

subscribed.
i like reading your articles, rg. i don't necessarily believe everything you say in them, but who cares, they're interesting to read regardless. please do write up a tech article, i haven't had any interesting things to read in a couple weeks

A question for RG or anyone else in the know:

What's the current weight of a fully dressed Renesis 13B? With a switch to alumninum side housings, how much lighter could this new engine be over the current version?

I love how a lot of people talk about swapping in a 16X like you're swapping an LS6 into an LS1 Camaro, or an SR20DET into a 240sx. The wiring is going to be completely different, and likely so will the oil pan, engine mounts, etc...

Just to give you an idea, a full swap to Racing Beat's aluminum side and intermediate housings on a 13B from the stock cast iron housings will shave somwhere around 40 lbs off of the block itself. If the new engine had a full composite intake manifold further weight could be saved.

Thanks for the info. What does the current Renesis 13B weigh?

From the sticky in the tech garage

^ Excellent. Thanks. :)

I don't think people expect this engine to be plug-n-play, however, as the external dimensions are the same as the current Renesis, it should fit into our cars with minor modifications. Plus, the factory ECU and wiring harnesses could be had for cheap from wrecked cars.

I personally will want to buy a new RX-? with the 16X Renesis (rather than do a swap) as it appears that Mazda will work to reduce the curb weights of their upcoming cars. Hopefully the engine will be offered in 2 seater and 2+2 seater configurations.

Agreed. I'll probably find a way to keep the 8, and if I can't, I'll trade her in for the new Rexy.

Mazda has said the 16x is about 20% lighter.

Can't wait! Thanks

4-5 years? Seriously? As in "not coming out next year"? Aww fawk.
:banghead:

I didnt expect it next year, but 4-5 sure seems a long way off. Hopefully it is something in between, like 2010 in a 2011 model.

What year did the Renesis come out? Was it '03? Somewhere around there. The side port rotary was first shown to the public in 1995. Mazda has been working on direct injection since the mid '80's. It's only been fairly recently that they've changed the dimensions to the 16X size and again the DI setup is drastically different from anything we've seen them try previously. I think 4-5 years is fairly safe as far as assumptions on time go. If it's sooner then great! Even better. The thing that may make it appear sooner is the very thing that could kill it before it ever becomes reality and that is world economy. I'd rather expect several years and see it sooner than expect less and be disappointed when it doesn't happen.

This is actually pretty exciting :)

yeah. plus i won't be ready to get another car for at least 4 years anyway, so..
hope they hold off and just keep making it better..

your forgetting what we learned last year tho- that they have actually been working this since the renesis was finished and production starting. i agree tho- better to be pleasantly surprised when it comes earlier than be disappointed

I agree on taking a couple of years to make, but by then it's unsure what the economy will be like and also the status of the CAFE laws. I would expect it to come out in 2011 as a 2012 model. Hopefully the government and economy won't hurt the Rx.

Hmm... it would be nice to do a 1 rotor Renesis test engine with DI port injection with the new Australian made Vi-Pec V44 injection system controlling everything hmm again...

/Lasse

I actually used google to find out the cafe laws and they are a bit different from what I thought.

http://www.nhtsa.dot.gov/CARS/rules/CAFE/overview.htm

So if they up the fleet MPG it just means the RX-8 will cost more.

Of course there is more. If anyone wants to read the final draft and summerize the important parts please do.

http://www.nhtsa.dot.gov/portal/site...7529cdba046a0/

i have two questions. is our motor seriously that light?! I knew it was light but thats insane. i have lifted blocks on 4Cyl Hondas, nissans, a VR6 out of a VW, and a LOVELY rusted out empty carcass of a Chevy V8. none of which were in any way pleasant to lift.

If something better is not out late next year as a '10, looks like it's a 370z for me. I have an '04 8 and there's no way in hell I'm waiting 4 more years for a better rotary. The November auto show should be making my decision for me. I'm hoping Mazda is just playing dumb in how tight lipped they are being about the new rotary.

Any idea on expected WHP/BHP ? (assuming it's a 2 rotor, but I really hope for a 3-rotor, since they could improve on the MPG like they've claimed they could do)...

It'll be sweet if it could do a rough 350-400HP @ N/a.... Lolz... am i dreaming?

Yes, you're dreaming. It's a 2-rotor, probably 280-300 bhp.

has anyone heard anything about the readline...with the increase in displacement the rpm's may be lowered, I remember reading that they were trying to overcome this a while back. Does anyone have any new information on this, although they will probably withhold this until the last minute.


here is a thread from Paul where you can hear it run...in case you missed this-
https://www.rx8club.com/showthread.p...&highlight=16x

The 09s have direct injection.. do they not?

So at least that's some progress. But I don't think the 16x will utilize the RX-8 body, probably something completely different. I mean they just refreshed the RX-8, so I doubt it will come very soon.

The revised RX8 just came out for 2009. So, it's 370z for you.

Direct injection has not been implemented on a production rotary yet.

From the 20-23% increase in power Mazda projected when they showed the 16X Renesis, that estimate seems about right. Torque should be around 200ft-lbs.

You'd rather them rush it out and have some possible engine failures? Or have them work on it a little longer to make sure its' going to be at 100%?

The problem is I have an '04 and if it takes 3-4 more years for the new one to come out I will be over 100,000 miles and honestly I don't want it after the engine warranty is over.

That would suck...going RIGHT over the warranty, engine dies, 16x comes out a year later. *facepalm*

Time for another 4-5 years instant noodles spree.

Aluminum eh? rotarygod, if you are listening, can you speculate anything on the strength or longevity of the engine making a switch to aluminum? Would this make it too risky to turbo or anything like that? (Just theories of course).

the new EVO engine switched to aluminium block instead of iron, though it is piston the strength is more than enough for the boost.

Excellent. I didn't realize until reviewing this that the upcoming 16X has the same overall footprint as the present engine, yet greater displacement and therefore power. Ya gotta love ever improving materials technology! Well done Mazda!!!