HEMI... What does stand for?
#2
CF Veteran
Hemi Hemispherical
HEMI Hybrid EFIE (Electric Field Integral Equation) /MFIE (Magnetic Field Integral Equation) Iterative
hemi hemispherical (combustion chambers in engines)
This is what I found.......
HEMI Hybrid EFIE (Electric Field Integral Equation) /MFIE (Magnetic Field Integral Equation) Iterative
hemi hemispherical (combustion chambers in engines)
This is what I found.......
#3
#4
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Join Date: Mar 2008
Location: Osceola, In.
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Year: 1998
Model: Cherokee
Engine: 4.0
Cubustion chamber shape is hemispherical as opposed to a more wedge shape chamber that is much more common. Intake valve is on intake side of head and exhaust is on exhaust side with spark plug between, wedge generally has boyh valves on intake side of head and plug comes in on exhaust side
#5
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Join Date: Feb 2008
Location: Durham, NC
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Year: 2003
Model: Grand Cherokee
Engine: 4.0L, 63mm TB, FIPK, Gibson Exhaust
actually just about all modern four valve per cylinder engines are hemispherical in shape this covers all of teh overhead cam engines. however mopar trademarked the term Hemi back in teh late 50's early 60's and so no one else can use that in their name.
#6
a lot of people like to quote what they read but really don't know what they are talking about.. the combustion chamber in the head is shaped like a half of a ball with the spark plug in the center which is the optimum and most efficient way to completely burn the air/fuel mixture ang generate the best horsepower. another way is to create a vortex or swirl in the combustion chamber to efficiently burn the mixture.
Last edited by sandblaster; 03-29-2008 at 09:04 PM.
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