Report: Mazda selects direct-injected 1.3-liter as first SkyActiv-G engine
05-20-11, 10:36 AM
#1
Report: Mazda selects direct-injected 1.3-liter as first SkyActiv-G engine
Report: Mazda selects direct-injected 1.3-liter as first SkyActiv-G engine
Mazda has selected its direct-injected, 1.3-liter gasoline powerplant to head the launch of the automaker's SkyActiv engines. On May 18th, Mazda officially unveiled the 1.3-liter four-cylinder engine at the Automotive Engineering Exposition at the Pacifico Yokohama convention center near Tokyo, Japan.
The SkyActiv-G 1.3-liter mill features a compression ratio of 14.0:1 and has been engineered to be highly efficient, especially under high load at low rpm. To avoid engine knock, Mazda fitted the 1.3-liter with technologies such as piston cavities that optimize combustion and multi-hole injectors that enable precise fuel control.
Mazda will launch the SkyActiv-G 1.3 in the facelifted Demio (Mazda2) in Japan. Combined with an updated version of automaker's idle-stop system and a continuously variable transmission, the Demio's fuel efficiency comes in at 30 kilometers per liter (70.56 miles per gallon U.S.) under Japan's 10-15 mode test cycle.
As of February, 2011, Mazda had applied for more than 130 patents related to its SkyActiv-G 1.3-liter engine.
http://www.autoblog.com/2011/05/20/m...yactiv-g-engi/
05-20-11, 02:40 PM
#2
PR's are awesome. There are kinks in the armor:
1. Power is down to 83hp/83tq
2. Cost of this technology is high while it is being sold in economy vehicles.
Hence, this engine will not feature in US or European Mazdas (according to Mazda).
And to draw parallels to Toyota Yaris NR series engine (brand new Yaris only in Japan):
1. 8.3% worse MPG (under JP standards)
2. Dual VVTi but NO Valvematic and NO Direct Injection
3. 14.5% more HP - 95hp/89tq (under JP standards)
Due to combination of those, Toyota has class leading engine that is still acceptable for sales around the world because it still does not cost that much. And they can still add DI and Valvematic if it ever makes sense financially. Yaris is also 2s faster 0-62 which is also important as you are basically telling customer to spend €500 more on car that will save them 0.4l/100kmh while being 2s slower to 100kmh.
You always have to have costs in mind, who cares if Mazda develops the bestest ever ever technology when it can not be sold due to the price?
1. Power is down to 83hp/83tq
2. Cost of this technology is high while it is being sold in economy vehicles.
Hence, this engine will not feature in US or European Mazdas (according to Mazda).
And to draw parallels to Toyota Yaris NR series engine (brand new Yaris only in Japan):
1. 8.3% worse MPG (under JP standards)
2. Dual VVTi but NO Valvematic and NO Direct Injection
3. 14.5% more HP - 95hp/89tq (under JP standards)
Due to combination of those, Toyota has class leading engine that is still acceptable for sales around the world because it still does not cost that much. And they can still add DI and Valvematic if it ever makes sense financially. Yaris is also 2s faster 0-62 which is also important as you are basically telling customer to spend €500 more on car that will save them 0.4l/100kmh while being 2s slower to 100kmh.
You always have to have costs in mind, who cares if Mazda develops the bestest ever ever technology when it can not be sold due to the price?
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