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youtube: Skyactiv explained

 
Old 06-18-2012, 12:59 PM
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Default youtube: Skyactiv explained

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Old 06-18-2012, 01:05 PM
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fuel at 3000psi?


maybe he meant 300?
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Old 06-18-2012, 01:14 PM
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Eh, the only thing I learned was the transmission's torque converter/clutch system. Which isn't terribly interesting.

I'd like to know more about how they actually achieved 40mpg. I'm not sure 14:1 compression, really good bearings, and a spiffy transmission add up to a 40mpg 2 liter.

I know it shuts the engine off at a stop and uses a compression cycle to start it again, which is awesome, but I'm not sure it's idle has anything to do with it's mpg rating.

Edit: Oh, yeah, the fuel thing sounds scary. I wouldn't be surprised if it was 3000psi. I'm assuming that's one pump at the tank, and one at the engine actually delivering the 3000psi. To safely deliver 3000psi of fuel all the way from the tank would probably go against their weight savings philosophy. Those would be some beefy lines.
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Old 06-18-2012, 01:19 PM
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My research shows 3k.

Curly my friend in a civic.. she stops her engine on every light.. pushes 39mpg city.
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Old 06-18-2012, 01:22 PM
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I feel like fuel rails being at 3000psi is cause for concern.
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Old 06-18-2012, 01:23 PM
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As far as i have found theres a fuel pump in the tank and another one right before the fuel rail and from there on its 3k psi.
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Old 06-18-2012, 01:34 PM
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injectors spray fuel funny and pistons are designed for it:


this video does flow rating at the end at 5bar (72psi) so unsure what they look like at 3000






Attached Thumbnails youtube: Skyactiv explained-800px-2.0combustionchamber.jpg   youtube: Skyactiv explained-wisecodi.jpg   youtube: Skyactiv explained-ecoboostaction_06.jpg  
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Old 06-18-2012, 01:39 PM
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Originally Posted by Braineack View Post
I feel like fuel rails being at 3000psi is cause for concern.
It's not. Modern diesels run almost 10 times that much rail pressure (30k psi).
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Old 06-18-2012, 01:40 PM
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Those are some interesting pistons.
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Old 06-18-2012, 01:50 PM
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I want one of those blue CX-5 diesel girl-SUVs so bad it's embarassing. Part of me wants that more than a truck and trailer.
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Old 06-18-2012, 01:51 PM
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Originally Posted by triple88a View Post
My research shows 3k.

Curly my friend in a civic.. she stops her engine on every light.. pushes 39mpg city.
I do this at some longer lights, and the outrageously long wait at the local Starbucks drive-thru. My problem is I have an OEM battery from 2007, and you know those starter motors on 4 cylinders that sound like they could start a giant V12? Mine is not one of them.

This is a 2008 Lancer, I average 27-29 a tank, which is up around it's highway rating, so I'm happy. I do wish I had a system that turned it off for me though.

I've considered trading in for a CX-5, but ever since buying the Lancer I promised myself I wouldn't buy another brand new car. But my main concern is I'd walk out with a 235hp AWD ralliart instead of a fuel saver. Even with the skyavtiv, I'd only be saving $16 a month in gas over my current DD, and adding around $290 a month, if I wanted to pay it off at the same time.

I only wish I had waited a couple years to get a new DD. There's a lot of 35mpg+ vehicles available now.
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Old 06-18-2012, 01:53 PM
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Personally i like the Honda CR Z

Attached Thumbnails youtube: Skyactiv explained-honda-hybrid-cr-z.jpg  
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Old 06-18-2012, 01:55 PM
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I'll stick with the c30.
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Old 06-18-2012, 01:57 PM
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I wish Mazda would battle against Audi at leMans.
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Old 06-18-2012, 01:59 PM
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Mazda needs to bring something else than the MZR-R to the (A)LMS
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Old 06-18-2012, 02:00 PM
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lol at mazda competing against a company that makes motors with more than 90bhp
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Old 06-18-2012, 02:14 PM
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HHmm ever notice the car color thing on google?
Attached Thumbnails youtube: Skyactiv explained-car-color.jpg  
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Old 06-18-2012, 02:17 PM
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no, thats neat though.
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Old 06-18-2012, 02:21 PM
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Originally Posted by Oscar View Post
Mazda needs to bring something else than the MZR-R to the (A)LMS
They are running the 2.2 SkyACTIVE!!!oneone diesel in LMP-2 next year as an engine supplier, not a chassis.

I'd like to see Mazda convert America to Diesel, its clearly the way to go. I'd also like to see the RX-? get something better than rotary...like a diesel.
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Old 06-18-2012, 02:25 PM
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you mean an ls7 right?
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