That thing got a hemi?

[Demon-Xanth]

Originally posted by: Toastedlightly
http://www.crankshaftcoalition...Hemi_cylinder_head.jpg
Now that is what a "Hemi" truely is. I don't think there is ap roduction engine that uses radical heads like that.

Compare it to the second link in the post before yours

 

[Howard]

Originally posted by: Demon-Xanth

Originally posted by: Toastedlightly
http://www.crankshaftcoalition...Hemi_cylinder_head.jpg
Now that is what a "Hemi" truely is. I don't think there is ap roduction engine that uses radical heads like that.

Compare it to the second link in the post before yours

Ugh, why?

 

[The Boston Dangler]

Originally posted by: Howard

Originally posted by: The Boston Dangler

Originally posted by: angry hampster
My Harley's got a hemi. Seriously. I hate the "it's got a hemi" marketing scheme.

nearly every reciprocating piston engine has had hemispherical combustion chambers for over 40 years. we have dodge to thank for that, and only they can call it a "Hemi." but yeah, that add campaign was aggravating.

I would hope that there are no ICEs today with hemispherical combustion chambers.

whachutalkinbout, willis?

 

[Howard]

Originally posted by: The Boston Dangler

Originally posted by: Howard

Originally posted by: The Boston Dangler

Originally posted by: angry hampster
My Harley's got a hemi. Seriously. I hate the "it's got a hemi" marketing scheme.

nearly every reciprocating piston engine has had hemispherical combustion chambers for over 40 years. we have dodge to thank for that, and only they can call it a "Hemi." but yeah, that add campaign was aggravating.

I would hope that there are no ICEs today with hemispherical combustion chambers.

whachutalkinbout, willis?

Because it sucks.

 

[Demon-Xanth]

Originally posted by: Howard
Because it sucks.

Why?

...and if you looked at my links, you'd see more than a few along the same lines.

 

[compguy786]

thats stupid i think
putting a failure into a great truck

 

[Throckmorton]

Originally posted by: mooseracing

Originally posted by: The Boston Dangler

Originally posted by: angry hampster
My Harley's got a hemi. Seriously. I hate the "it's got a hemi" marketing scheme.

nearly every reciprocating piston engine has had hemispherical combustion chambers for over 40 years. we have dodge to thank for that, and only they can call it a "Hemi." but yeah, that add campaign was aggravating.

Thats not all that made it a Hemi....Hemi's died in irrc '58 or so. Even the "Hemi's" of the 60's aren't true Hemi's.



independent suspension = fail

Worse design for a trruck ever.

Almost all trucks are IFS now

 

[Stunt]

Hemi just means the cylinders are hemispherical in shape...does Dodge have the patent on that, why don't other manufacturers use a similar shape if it indeed develops more horsepower?

 

[Demon-Xanth]

Originally posted by: Stunt
Hemi just means the cylinders are hemispherical in shape...does Dodge have the patent on that, why don't other manufacturers use a similar shape if it indeed develops more horsepower?

They don't, and some do. Ford had a hemi as well back in the '60s. Dodge has a trademark on the Hemi name, but not the tech. The drawbacks include a larger head, increased rocker length, and the valve angles don't work well with DOHC valvetrains (thus the pentroof). However the 3 and 5 valve heads are very much hemi like as well in general shape.

 

[Squisher]

Originally posted by: iamwiz82
*snip*

Both have positives and negatives. I wouldn't consider either better than the other. I prefer both to torsion beam setups.

Torsion bars were great for lowering the front end of your '70 Cuda.

Not that I could ever look at that thing and figure out how it worked [/sarcasm]

 

[Howard]

Originally posted by: Demon-Xanth

Originally posted by: Stunt
Hemi just means the cylinders are hemispherical in shape...does Dodge have the patent on that, why don't other manufacturers use a similar shape if it indeed develops more horsepower?

They don't, and some do. Ford had a hemi as well back in the '60s. Dodge has a trademark on the Hemi name, but not the tech. The drawbacks include a larger head, increased rocker length, and the valve angles don't work well with DOHC valvetrains (thus the pentroof). However the 3 and 5 valve heads are very much hemi like as well in general shape.

Don't forget the higher average-distance-to-edge from spark (slower combustion).

EDIT: Don't get me wrong, it's just the truly hemispherical chambers that don't look good to me. I like the shape of the LS2 and wedge head chambers.

 

[lurk3r]

I kinda like this idea, the Dodge "HEMI" lol is actually much nicer than nissan's V8, should improve the truck. Now if Dodge could get their hands on that 3.5 ... I might actually look at a Charger.