Howard Coleman

iTrader: (6)

do you know that Mazda is showcasing a new rotary engine?

it is tagged the 16X.

16 for 1.6 liters V 1.3 currently. anyway you slice it it is 23% more displacement. the engine achieves this larger displacement by lengthening the stroke on the E shaft and thinning the irons and making up that dimension by widening the rotor housings and rotors!

so the E shaft is the same length and the motor has the same exterior dimensions.

in addition, the motor has Direct Fuel Injection... into the combustion chambers! i would assume the location of the injectors is on the rotor housings. there's lots of hp/tq pickup w direct injection.

at the same time there's lots of Mazda mumbling about the new restyled RX8. which is in need of a MOTOR.

most of this is in the newest (Jan) Car and Driver.

zoom zoom zoom

hc

diabolical1

iTrader: (3)

yeah ... there are a few threads on the board about it. i'm truly excited. great merits and moreover it's good to have a new big block on the ... er ... block.

Howard Coleman

iTrader: (6)

after i posted i found a couple of well developed threads on the motor. oooops.

it appears the rotors are thinner not thicker and the side housings are aluminum!

kenn_chan

Howard
thats basically where I left those thread discussions myself I am excited to see that mazda is going back to the narrower rotor.

Even though I run a 13bt myself, I have allways thought that the narrow 10a/12a rotors had better resistance to detonation/ seal flex due to the shorter seal length, and that the 13b width was an engineering cop out.


kenn

arghx

iTrader: (3)

wait, so are all the housings aluminum? Can we say the new engine is "all aluminum" like even the front cover etc?

ChrisRX8PR

Yep it is all aluminum, even the plates.

Chris