"Hemi"
#1
Senior Member
Posts like a Supercharger
Thread Starter
Join Date: Feb 2007
Location: Trenton Ontario
Posts: 188
Likes: 0
Received 0 Likes
on
0 Posts
"Hemi"
I was talking to someone today and the subject of the new dodge hemi came up. Then he said that not just dodge have hemi'*. He then said that the northstar is a hemi engine. Something about the plugs being in the centre of the cylinder. He said that the term "hemi" is patented for dodge and that'* why you only see dodge use the term. Does anyone know anymore on this subject?
#3
#4
Senior Member
True Car Nut
Join Date: Jul 2003
Location: Toronto, Ontario, Canada
Posts: 5,158
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by ten_gigahertz
I heard 'hemi' comes from the cylindar heads being domed... as in hemispherical...
I know for a fact that Toyota used this setup starting in the 1960'* and throughout the 1980'*...
1982-1986 Toyota 5M-GE: 2.8L 12V DOHC I6, ranging from 150hp in earlier years to almost 170 in 1986.
"Pentroof" is a similar setup, but with accomodations and changes making it possible to have 4 valves per cylinder. This is what your 3.4 DOHC would be, haro
#7
Senior Member
Certified Car Nut
Originally Posted by Bonneville94V688
Wanna know a weird fact? My dad'* 4.7 SOHC V8 in his Durango, is more of a hemi than the current 5.7 and 6.1 Hemis.
Old Hemis have interesting valvetrain layouts as well. Pushrods go through weird angles to accomplish this. The new Hemi is still a Hemi, it'* just not a monster sized engine like previous versions. My only gripe with it, is the fact it could be more efficient with fuel. It requires 2 plugs per cyl to get a good burn.
#9
Senior Member
Certified GM nut
Join Date: Feb 2004
Location: MI
Posts: 2,246
Likes: 0
Received 0 Likes
on
0 Posts
I was under the impression that almost all engines were hemi'*....just the extent of it is what matters. A dodge hemi is more...severe of a hemi shape.