|
Modern
Hemi |
Third
Generation |
| The
first generation |
5.7
liter Hemi (which was the third
generation Hemi) produced roughly (it varies
by car/truck) 345 horsepower (5,600 rpm) and
375 lb-ft of torque (4,400 rpm) from 5.7
liters (345 cid*) when used in the Dodge Ram
- one horsepower per cubic inch. |
| The
second generation |
5.7
liter Hemi (the fourth generation Hemi)
produces up to 390 horsepower and 407 lb-ft
of torque in the 2009 Dodge Ram 1500, using
variable cam timing; it shuts off four
cylinders when possible to get good mileage.
The same engine produces 375 horsepower in
the 2009 Dodge Challenger R/T. (This is the
fourth generation Hemi if one counts all the
original “small” Hemi V8s as the first
generation, the 426 Hemi as the second
generation, and the original 5.7/6.1 Hemi as
the third; but it is the second generation
5.7.) |
| |
6.1
liter The Hemi is also available in a
6,059 cc (6.059 L; 369.7 cu in) version.[5]
The engine's bore is 4.1 in (104 mm), and
many other changes were made to allow it to
produce 425 horsepower (317 kW) at 6200 rpm
and 420 lb·ft (569 N·m) at 4800 rpm. The
engine block is different from the 5.7, with
revised coolant channels and oil jets to
cool the pistons. A forged crankshaft,
lighter pistons, and strengthened connecting
rods add durability. A cast aluminum intake
manifold is tuned for high-RPM power and
does not include variable-length technology.
Chrysler's Multi-Displacement System is not
used on the 6.1. |
| |
6.4
liter Hemi (392 Hemi) is projected to be
in the 2011 Dodge Charger SRT8 and 2011
Chrysler 300C SRT8. Numerous changes will be
made from the 392 Hemi in the Challenger
Drag Pack. Horsepower estimates range from
450 to 500 at this point; |
| |
|
|
