Wall St J review of Aspen, true MPG & SAE hp ratings
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Wall St J review of Aspen, true MPG & SAE hp ratings
The Wall Street Journal page W12
has a review in the Friday edition (2-2-2007)
of the Chrysler Aspen.
It is generally favorable, such as a sample quote:
"The Hemi retains its appeal in the Chrysler Aspen producing a whopping 335 horsepower and 370 lb-ft of torque, the same as in the Durango. (To the uninitiated, this is plenty) It moves the Aspen about as fast as you would want to go in a 5,000 pound SUV......Of course the fun has to end somewhere, and despite a cylinder deactivation system that's designed to save gas by shutting off four cylinders when full-power is not needed, a week of real-world driving in a four-wheel-drive produced only 12.6 MPG over 655 miles."
-----
HankL notes that he has read
several recent reviews of SUV's and trucks
like the Tahoe/Denali/Silverado/Sierra/Ford Expedition
in past months where the official EPA rating are higher by 1-2
but the reviewer found the same old
12-13 MPG on his own...no better than previous models
with lower official EPA numbers.
HankL also notes that he thinks this is the first time
he has read a 335/370 rating of the 2007 5.7 Hemi
that was done using the 'improved' SAE horsepower dyno proceedure
J2723 that was agreed to two years ago to reduce "cheating" by Chrysler
after loud protests by Toyota, Nissan, Ford and GM about the
introduction rating of 345hp/375 ft-lbs of the 5.7 Hemi.
It does look like leaving off the power steering pump and giving
a very harsh 'break in' to loosen piston ring tension
did boost the model year 2003 numbers for the 5.7
by about 10 hp and 5 ft-lbs like the other manufacturers claimed
when they bought Rams off the showroom floor in 2003
and tested them on their own dynos.
See for example:
http://www.findarticles.com/p/articl...1/ai_n13815480
The rumor was that Dodge advertising managers had prepared a
big ad campaign in 2001 based on
"one hp per cubic inch"
like the original 1960s Hemi and demanded some "tweaking"
in the Dodge dyno rooms when a unexpected redesign
of the 5.7 to improve the cam bearings resulted in slightly less
hp than the original 5.7 engine was to have for its 2001 introduction.
has a review in the Friday edition (2-2-2007)
of the Chrysler Aspen.
It is generally favorable, such as a sample quote:
"The Hemi retains its appeal in the Chrysler Aspen producing a whopping 335 horsepower and 370 lb-ft of torque, the same as in the Durango. (To the uninitiated, this is plenty) It moves the Aspen about as fast as you would want to go in a 5,000 pound SUV......Of course the fun has to end somewhere, and despite a cylinder deactivation system that's designed to save gas by shutting off four cylinders when full-power is not needed, a week of real-world driving in a four-wheel-drive produced only 12.6 MPG over 655 miles."
-----
HankL notes that he has read
several recent reviews of SUV's and trucks
like the Tahoe/Denali/Silverado/Sierra/Ford Expedition
in past months where the official EPA rating are higher by 1-2
but the reviewer found the same old
12-13 MPG on his own...no better than previous models
with lower official EPA numbers.
HankL also notes that he thinks this is the first time
he has read a 335/370 rating of the 2007 5.7 Hemi
that was done using the 'improved' SAE horsepower dyno proceedure
J2723 that was agreed to two years ago to reduce "cheating" by Chrysler
after loud protests by Toyota, Nissan, Ford and GM about the
introduction rating of 345hp/375 ft-lbs of the 5.7 Hemi.
It does look like leaving off the power steering pump and giving
a very harsh 'break in' to loosen piston ring tension
did boost the model year 2003 numbers for the 5.7
by about 10 hp and 5 ft-lbs like the other manufacturers claimed
when they bought Rams off the showroom floor in 2003
and tested them on their own dynos.
See for example:
http://www.findarticles.com/p/articl...1/ai_n13815480
The rumor was that Dodge advertising managers had prepared a
big ad campaign in 2001 based on
"one hp per cubic inch"
like the original 1960s Hemi and demanded some "tweaking"
in the Dodge dyno rooms when a unexpected redesign
of the 5.7 to improve the cam bearings resulted in slightly less
hp than the original 5.7 engine was to have for its 2001 introduction.
