great news!! direct iiiiiinnnnnjection!!!

 

not necessarily. we know from a year or 2 ago that they were working on a new tranny for the "2nd gen rx-8" . RG heard from the engineer himself while at 7stock. so there woudl be no need to make it backwards compatible if other factors pushed in a different direction(strength , durability etc)

 

Thoose housings look thin,.. like 12a housings. Did you guys think of the fact that with the current side port intake/exhaust increasing the eccentricity and decreasing the rotor width effectivly gives you a much larger avaliable port volume vs displacment then the current motor? It should breath even better at high rpm,..

 

i cant wait to see what xdeed does that car when it comes out :P

 

Wonder if it will have a DSG like everyone else is doing?

 

That is what I was wondering....

 

yes, but the increased rotating mass and the longer distance from the center of rotation to the apex(torque arm) might limit the rpm. I hope i am wrong.
________
Vaporizer Wiki

 

Just don't put it in an ugly car!

 

I think they are probably gonna put it in the next rx, I highly doubt the rx8 will get a 16X rotor intime before it is axed

 

Well isn't the whole reason rotaries can run such high rpms is supposedly because the rotors only move at 1/3 the speed as pistons would at similar rpms.

Looking also at the way a rotary works, if everything was balanced correctly, using strong enough materials, I don't know why there wouldn't be a problem =/

 

In general a longer stroke engine has a lower redline. Usually. This is a longer stroke so who knows. We'll see.

 

I'm not much of a tech head, but haven't the revs been more limited by what the transmissions can handle than the engine?

Seems like the bigger challenge is building a transmission to mate to it. Most suggest the Renesis has always had more revs to give than the transmissions have been able to handle. If that's the case I wouldn't worry too much about the if this engine redlines slightly lower. Worry about the tranny.

 

agree. bump

 

I dont think the transmission can be a problem. A formula 1 engine run at 19 000 RPM. I know it cost a lot more but just a reduction gear can limit the speed of the transmission... just my 2 cents

 

I wonder if any work was done in development and testing that figured out a way to reduce some of the carbon buildup?

 

I know one thing, I hope the larger stationary gears and e-shaft are beefed up substantially since the centrifugal forces of the heavier larger rotors are now further away from the e-shafts center of rotation. That will put way more stress on them.

 

Automatics and cutches can limit and engines rpm. This new rotary will have a larger overal trochoid. Look at it as and older 13b housing being able to fit inside this newer one. So by design, everything else has to be bigger. I don't think Mazda is making the rotors wider. Anyways this overal larger size should effect the rpm red line some. You have more weight furthur away from the e-shafts center of rotation. This increases the centrifugal forces.

 

Are you sure the rotors are going to be heavier?

 

It's only gonna be 20mm wider...wouldn't for see that much work needed to actually make it work.

 

Yes, it is the perfect opportunity for the rotors to be lightened significantly, which is not as easy as it sounds. Structural integrity is a dog when you're reducing mass. This becomes most apparent in racing where the loads are greater and the high rpms are more sustained.

Paul.

 

I don't think we know if it's wider yet. They increased every other dimension making it a "long stroke". They might not have widened the rotors at all. They could ahve though but I don't see them being 20mm wider. I guess we'll find out soon enough though.

 

how soon?

 

I know they are showing this new engine next week for the Tokyo show but does anyone know if they will announce new hp numbers for it at the show too?

 

Dear God, please; NO HORSEPOWER #s

Just kidding. They can print whatever they want to. I'll be as happy to see some figures as the next guy.

Paul.

 

p.s. press kits are embargoed until press day but ive got a lead on a couple print and e