dynamho

Not sure if this is a dupe. Delete if it is.
Impressive if they do it in time for a 2017 production model.

Mazda eyes 18:1 petrol compression - motoring.com.au

MattMPS

interesting news...HCCI is on the way....

monchie

Skyactiv engines could be the future of Mazda for years to come...

RIWWP

iTrader: (2)

Fixed. Not sure where "could be" came from...

Carbon8

iTrader: (4)

At least Mazda won't have to worry about making a reliable ignition system then

monchie

You got it!

dynamho

I'm curious how they'll address the transition problem over from compression ignition to spark ignition at higher RPMs.

Also, I'm looking forward to how Mazda means to manifest the "adiabatic combustion chamber" that they're referring to.

nycgps

iTrader: (1)

Electric will be manatory in cali in 2018?

I feel really sorry for those who live in that state

dynamho

Looks like the "adiabatic combustion chamber" referred to earlier is some sort of cylinder coating, according to this article.

Mazda targets petrols that act like diesels, says six-speed autos are "enough" | CarAdvice

j9fd3s

oh apparently since last tuesday when that was published and now, we're going hydrogen.

so batteries are out…

but don't feel sorry, we're doing this to ourselves

nycgps

iTrader: (1)

rofl, well, NY is about the same, so many tree huggers here and our emission rules are as close as cali as possible, one of the example is it's illegal to buy non-factory cat in NY now

Cornbred

if california truely does go hydrogen mandated it might give new life to rotary powered vehicles

Posted From RX8Club.com Android App

nycgps

iTrader: (1)

with 1/2 the power ?

its not gonna work, piston engines is not great for hydrogen, and they will never allow foreign companies like Mazda to dominate the market.

Loki

iTrader: (1)

It would mean a coating that resists the transfer of heat... such as that found in the Renny. :o

j9fd3s

its actually kind of funny.

so we're going hydrogen because toyota and honda both have new hydrogen cars coming out.

as is the case with just about every automotive innovation, Mazda already did the hydrogen car, almost a decade ago, in 2006.

i didn't look at the toyota, because its going to be extremely lame and i'm already bored of it, but the honda is hydrogen to a fuel cell to an electric motor, so its not internal combustion.

i did some looking, and gasoline is very nice as a fuel, because we can fit many hydrogens on a carbon molecule, its something like C2 H18, while hydrogen gas is just H2.

dynamho

Yeah. It was definitely anticlimactic reading that that's all it could be. We shall see though if they had some sort of breakthrough in metallurgy or something like that.

nycgps

iTrader: (1)

they can't even manage to get 14:1 in US, it's just 13:1, thx to garbage gas we have

and ... how are they gonna do some ultra high compression like 18:1 ... I dunno, magic dust ?

RIWWP

iTrader: (2)

For the SkyActive design that they have, they can't risk 14:1 on US pump gas, so they dropped it to 13:1. I presume that if they are working toward 18:1, that it will have a different and more advanced design than current SkyActive. 13:1 is done because they are inherently trying to avoid detonation. At 18:1 compresion they won't be avoiding detonation, but using it intentionally.

kickerfox

Quality of the gasoline isn't an issue if they use direct injection, which they will, but GDI has a host of it's own problems that need to be addressed.

77mjd

How about gunning for a new rotary powered sports car by 2017?

wcs

iTrader: (2)

^^^ Not happening
If the information out there is to be believed and there is no reason it shouldn't...

Mazda has stopped any sort of R&D for a rotary powered vehicle.
Game Over
Player two up
Insert coin for 1 play
XXX

RIWWP

iTrader: (2)

Not quite accuracte wcs, considering that the day after the CEO made that statement they unveiled a brand new 330cc rotary engine at the Tokyo Auto Show. Not what we are hoping for, and I agree that 2017 is probably not gonna happen for a car with a primary rotary powerplant, but saying that they pulled the plug on the rotary is inaccurate. Development does continue on the rotary...

wcs

iTrader: (2)

I stand corrected.

Mazmart

iTrader: (12)

Not only that but R&D on the larger rotaries continues as well (No, not 3 and 4 rotor, don't get excited, haha!).

Paul.