Mazda 1.3 SKY-G engine unveil @ Automotive Engineering Expo at Yokohama
 

http://www.mazda.com/publicity/relea...5/110518a.html

HIROSHIMA, Japan—Mazda Motor Corporation has announced that the "SKYACTIV-G 1.3" direct-injection 1.3-liter gasoline engine will be the first of its next-generation SKYACTIV technologies to be introduced to the market. Mazda will unveil the engine at the Automotive Engineering Exposition that will be held from May 18 through 20, 2011, at the Pacifico Yokohama convention center near Tokyo, Japan.

The breakthrough SKYACTIV-G 1.3 achieves a record high compression ratio (for a regular gasoline mass production automobile engine) of 14.0:1 and exhibits high efficiency, especially under high load at low rpm. In order to avoid knocking – an unavoidable issue with conventional high-compression engines – the SKYACTIV-G 1.3 features a number of new technologies, such as piston cavities that are specially designed to support ideal combustion, and multi-hole injectors that enable precise fuel injection control.

Mazda plans to introduce the SKYACTIV-G 1.3 to the Japanese market in the facelifted Mazda Demio (known overseas as the Mazda2) during the first half of 2011. It will be the first ever 1.3-liter direct-injection gasoline engine to be equipped in a compact car manufactured in Japan. Combined with Mazda's unique idling stop system, i-stop, and a continuously variable transmission (CVT), SKYACTIV-G 1.3 will achieve fuel economy of 30km/L under Japan's 10-15 mode test cycle.

Mazda has applied for over 130 patents in relation to the engine (as of the end of February, 2011).

SKYACTIV TECHNOLOGY is the umbrella term for Mazda's range of next-generation technologies – including gasoline and diesel engines, transmissions, and a new body and chassis – that significantly improve vehicle driving dynamics as well as environmental and safety performance. The SKYACTIV-G 1.3 that is equipped in the facelifted Mazda Demio adopts all of Mazda's SKYACTIV engine technologies except for the exhaust manifold. It also features other new components that are exclusive to the Demio, such as a cooled EGR* system.

Under its Sustainable Zoom-Zoom vision, Mazda aims to deliver outstanding driving pleasure as well as environmental and safety performance, and is committed to increasing its global fleet fuel economy by 30 percent by 2015, compared with the 2008 level.

* EGR: Exhaust Gas Recirculation

Main features of the SKYACTIV-G 1.3 engine
Highly efficient automobile gasoline engine and the world's first to achieve a compression ratio of 14.0:1
Multi-hole injectors enable precise fuel injection control for ideal combustion
Mazda's first dual sequential valve timing system (dual S-VT with electronically-operated intake) in combination with the high compression ratio achieves an unconventional Miller cycle (extremely delayed closure of intake valves) that improves efficiency
Compact combustion chambers have a longer stroke for better efficiency
Piston cavities are specially designed to support ideal combustion
30 percent less mechanical friction, due to a narrower crankshaft, new roller followers and low-tension piston rings that also reduce oil consumption
Various countermeasures to prevent knocking, including a cooled EGR system
An updated version of Mazda's innovative idling stop system, i-stop, improves fuel economy by eight percent. It operates with a higher frequency, requires less fuel to restart, and achieves a smoother restart
A lightweight and highly rigid aluminum alloy engine block

Major specifications of the SKYACTIV-G 1.3
Inline four-cylinder 1.3-liter direct-injection engine (with i-stop)
Engine displacement: 1.298Ｌ
Bore and stroke: 71.0mm x 82.0mm
Compression ratio: 14.0:1
Maximum output (net): 62kＷ@5,400rpm (84ps@5,400rpm)
Maximum torque (net): 112Nm@4,000rpm


will be mounted in JDM Demio, numbers are "normal" , but the interesting thing is fuel economy, this must be the "basic" engine of SKY lineup.

interesting the "unconventional Miller Cycle"........

Great stuff Matt. I can only imagine we will get a slightly bigger version for the US market Mazda 2 as 2012 or 13 model on the heels of the Sky-G equipped 2012 Mazda 3 that is coming this fall. I, of course, have to look to and from a US perspective to some extent.

Paul.

I'm really excited about this line of motors. I'm also really excited about the possibility of a diesel version coming to the us. Being able to get a diesel version with nearly 50 mpg of performance would be awesome. I'd like to not have to fuel up except maybe once or twice a month at the most.

based on the specs of current 1349 cc EU spec i must say that:

-similar power is obtained @less rpm----> 5400 vs 6000 of old MZR

-max torque is similar but obtained @ 500 rpm more higher (but we must see the curve, IMHO there are surprises)

-is a lot more "long stroke" than mzr... measures are:

Bore and stroke SKY: 71.0mm x 82.0mm

Bore and stroke MZR:74.0mm x 78.4 mm

but i'm reserving a final judgement when i see official data of an engine mated to a MT, not a CVT....;)

Mazda 3 will get 2.0 SKYACTIV this fall

You forgot the pic,,,, ;)


http://www.media.mazda.com/Access/ma.../P1J04881s.jpg

Thats 70mpg with a gasoline engine. Thats the kinda mileage seen with Diesels in this segment currently.

this 2/Demio is a facelifted version like the 3 sky for here. its not purpose built. thats why they didnt use the exhaust manifold- no room. the next gen chassis will be built specifically for the new engines and so will see even more improvement

pictures from when the 1.3 was first shown /talked about in the Kiyora Concept

http://pictures.topspeed.com/IMG/cro...a-7_800x0w.jpg

http://pictures.topspeed.com/IMG/cro...-10_800x0w.jpg

Yes , Charlie..but..i'm like St. Thomas, "until i don't see ,i don't trust".

small diesels are common here in EU and i assure they have fantastic mileage, especially outside city courses.

yeah Matt thats what Im talking about. The Mini-D gets the equivalent mileage in current form. If they were to use a 1.3 SKy-d would we see a 100mpg B-segment no hybrid car?

Theorically yes. But from what i've read the plans are of 4 or 5 SKY-G* engines and 1 SKY-D engine.

Maybe they want still buy 1.4 and 1.6 diesels from Ford-PSA (BTW the Mazda5 have under the hood the NEW 1.6 8 valve from Ford-PSA, is not the same engine wich is mounted in Mazda3&2)


*turbo version of SKY-G are not ruled out by Mr. Yamanouchi but not in short times (source:interview)

It's Atomic Robo-kid!! :eyetwitch

Shiny = Expensive

The header looks quite a bit more "aftermarket" than OEM exhaust manifolds usually are. Like an actual header :)

Same thing with the intake side too imo. The intake side looks more like the rotary intakes than typical econo-box piston intakes, with equal length and longer runners than most OEM manifolds see. Usually just an air box next to the pistons to grab from.

Looks like a 4-2-1 header.

it is a 4-2-1 header.

Mazda said that's one of the way they need to get ultra high compression.

but for US, we will "only" get up to 13.5:1, simply because our gas is complete garbage. (so slightly lower power)

you guys never seen this site? surprised

http://www.mazda.com/mazdaspirit/skyactiv/

tells ya everything u need to know about SkyActiv.

The biggest part is their "light weighting" process. using higher tensile strength steel. hmm, if they can cut 300 lbs for the next RX oh man that will be sweet.

AT will be engaging gears 90% of the time (instead of traditional AT which is only 50%) it makes it something like a CVT/DSG gear box (not as fast, I think),it's not a bad start.

Their MT is a complete redesign, cut the reverse gear and some lighter/stronger part to save weight, but I doubt their new MT can fit under a small car like next Miata/RX.

I'm in the market for a new car and can't decide if it's worth waiting for this engine!!! The cx-5 can't get here soon enough!

the new MT looks small in the pics Ive seen

I hope so.

only saw AT at NY auto show, I gotta say it's pretty small (a bit smaller than traditional AT box)

mind you, it only seats 4 (including driver)

at least that's the information out right now (+ the car I saw at Auto Show this year)

It starts with SkyActiv-G but if it comes with SkyActiv-D and seats 5. I probably gonna tell my father to trade his CX-7 in.

if not, I wait for their SkyActiv-G/D version of CX-9 to come out.

Good looking engine.

this data are for you, ;) nycgps:

http://girlracer.co.uk/motoring/news...-skyactiv.html

citation:
Mr Thomson said the first generation of Skyactiv technology will appear on the Mazda CX 5 in 2012 and this will be a compact SUV with a 180bhp 2.2 diesel engine which produces 120gkm and is capable of returning 70mpg.



imho cx-5 will seat for 5......;)

i really hope so. and I really hope that they will bring the Sky-D in here ASAP.

tv coverage of Yokohama presentation of SKY-G 1.3 (sorry, japanese only)

http://www.youtube.com/watch?v=jctmsowyw6g