Elio Engine Block

[wizard of ahs]

For those of us (me) who are not techno savy I just wanted to say thank you for details and explanations of "why" things are the way they are. I love trying to learn as much as I can about this, this, carcycle. The more I know the better I can take care of it and like the hemispherical head I now know it's a "HEMI"

Like your new avatar

 

[Jelio]

Silas Sunday is really good with the designs and this is one of his that I love.

 

[harlan stephens]

Cooling jacket.
http://www.elioclub.org/forums/viewtopic.php?f=2&t=873

Head shots
http://www.technologytell.com/in-car-tech/9277/get-inside-elios-head-least-engines-head/

 

[BlioKart]

Cooling jacket.
http://www.elioclub.org/forums/viewtopic.php?f=2&t=873
http://www.technologytell.com/in-car-tech/9277/get-inside-elios-head-least-engines-head/
Head shots.....lol

I know some people who work at US motor works


*I asked the person i know he says its for a small 3 cyl engine thats in development. He says they have only sent 5 units for testing. I showed him the pictures he says thats probably it he isnt sure but its supposed to have a high demand in the next coming years.

 

[Brainmatter]

I see the same thing and have no problem with integrating the cam caps and valve cover. The Japanese (and others) have been running camshafts directly on an aluminum head for about 5 decades now. Some had separate cam caps and some did not.

Nobody said you can't flame-spray a hard coating onto bearing surfaces.

Indeed. Volvo for example, has been using the cam cover as the upper cam bearing for years; http://www.atthetipwebs.com/technologyinstructions/volvo/S70/PICT7968-Small.JPG
It makes for a stiffer assembly as the cam cover is a bearing cap girdle at that point. No cam flex happening here.

 

[John Painter]

What I see is an engine with an undersquare bore/stroke ratio, thus it will favor torque production rather than power. Use of the semi-hemispherical combustion chamber will improve surface/volume ratio and decrease heat loss through the chamber, increasing efficiency.

The cavities on the exhaust side look like a mix of coolant and oil return paths. We know from tech talk 31 that the holes around the combustion chamber in the head are the coolant entry lines for the head, so the two holes on the intake side are likely the oil feed for the heads.

Other than this there isn't much we can get from the raw casting we didn't already know. I see the timing cover isn't in the picture and I don't think I've ever seen it anywhere, so they might still be waiting on that.

Use of the two stage tapets as described in the Dreamcruze video will of course increase volumetric efficiency when it's needed, increasing output and thus decreasing specific fuel consumption (a bit deceiving as SFC is measured in g/kw-hr so increasing power output decrease SFC but not actual fuel consumption.)

It's awfully hard to know what a photo of rough casting will really produce, but good hypothesis.

I think that the design is both simple and smart, I don't see "bells and whistles" as much as solid engineering design and use of "off the shelf" design/engineering. Reminds me of Honda XR's (go figure), which means to me what I see is an engine that's not over-engineered and should be quite reliable and easy to work on. I'm much more interested in the metal that they are using to cast the engine and where it's coming from. Are there any posts on the metal? I was very surprised and impressed with the body material, makes sense - can't wait to see a crash test video of that!

 

[OCS12]

I see the same thing and have no problem with integrating the cam caps and valve cover. The Japanese (and others) have been running camshafts directly on an aluminum head for about 5 decades now. Some had separate cam caps and some did not.

Nobody said you can't flame-spray a hard coating onto bearing surfaces.

Separate cam caps make production sooooooo much easier. Despite the extra gauging equipment required, I'm still a fan. To be fair, my opinion is that of an engineer at a company that builds engines, and not a consumer.

 

[karl]

Hemi is a trademark owned by Fiat - Chrysler.

 

[CrimsonEclipse]

http://gas2.org/2014/08/16/elio-motors-town-hall-meeting-go/

Supply lines clogged.
And a few other things from town hall.

The guy who wrote the article is a paid shill.

Just so you know.

 

[harlan stephens]

The guy who wrote the article is a paid shill.

Just so you know.

Just so you know...
This thread is about the elio engine block..
Would be nice to keep this on topic.
Do have any thing to contribute about the topic being discussed?