rlj676

This has been the reaction from most the Ford fanboy camp. Somehow doing it in the mountains is "rigging" it for GM. Here's why I feel that's nonsense:
-Both are turbos and therefore less impacted by atmospheric pressure.
-The GM trucks were better in the first tests at sea level.
-Where else but "the mountains" will you see the worst conditions this comparison emulates......making it quite relevant.

Best yet, Ford themselves actually pulled that trick in running a comparo for the MKS w/ ecoboost to a 550i and other non turbo competition in the mountains (and still didn't win).

The peak numbers, that Ford is tweaked for and advertising mean nothing. The area under the power curve is what matters. As explained by a GM engineer to me who works on Dmax programs (in Pontiac - not Japan or Isuzu for the misinformed out there) our total power curve blows them away. GM obviously knew this, hence the reason for the challenge. Ford knows this too, which is why the declined to participate in the challenge.

So, you out tow, get better mileage, ride better, get way better exhaust brakes and look like a purposeful truck in a proven and dependable combination. I'm guessing it's back to the drawing board already for the 6.7 guys!

Baja_Bigdog

No problem.....I love GM products and will always defend them against this type of attack.

golfmaxgolf

Hmm

Jupiter Sunsation

Is that worse than a Dodge made in Mexico?

All Dodge 2500/3500's are made in Santillo, Mexico......

Jupiter Sunsation

My 03 was covered under the "extended" powertrain warranty, GM extended the warranty on injectors to 200K miles or 7 years. Original injectors were changed at 145K miles, 163K now with no issues.

ttuton

Check out the current issue of Diesel Power for yourself as they tour the Duramax plant. This info is straight out of their magazine. December 2010 pg. 60-69. I don't just throw random B.S. out for fun.

rlj676

They said Isuzu designed the engine.......?

What exactly did they say, who is this mystery supplier in Japan of the internals? Hell, give me the part numbers and I'll check for myself exactly where they come from tomorrow.

Catmando

Allison Transmission is an American company;

Allison began in 1909 when James A. Allison, along with three business partners, helped found and build the Indianapolis Motor Speedway. In 1911, Allison’s new track held the first Indianapolis 500 mile race. In addition to funding several race teams, Jim Allison established his own racing team in 1915 and quickly gained a reputation for his work on race cars and automotive technology in general.[2]

When World War I began, Allison suspended racing and his company began machining parts, tools and masters for the Liberty airplane engine — the main power plant used in the U.S. war effort. After the war, Allison entered a car in the 1919 Indy 500 and won. It was the last race Allison’s team ever entered. Instead, he turned his company’s attention to aviation engineering. The company’s expertise in aviation was the major factor in General Motors decision to buy the company following Jim Allison’s death in 1928.[3][4][5]

Shortly after the sale to General Motors in 1929, Allison engineers began work on a 12-cylinder engine to replace the aging Liberty engines. The result was the V1710 12-cylinder aircraft engine and it made the company, now known as the Allison Engine Company, a major force in aviation.[6]

Toward the end of World War II, General Motors formed Allison Transmission to put the engineers’ expertise to work in a new field — power transmissions for tracked military vehicles. The new division developed a transmission combining range change, steering and braking.[7][8]

After World War II, Allison Transmission turned its attention to powering the civilian transportation market. Allison designed, developed and manufactured the first-ever automatic transmissions for heavy-duty vehicles like delivery trucks, city buses and even locomotives. The days of laborious manual shifting were over and a new, modern era of commercial transportation was ushered in.[8][9]

ttuton

I know Allision is an American Company, I was unaware that GM had anything to do with Allison other than using them as a supplier for transmissions.

SDFever

Mine says "made in Japan" all over it... And a LOT of the AC/Delco Parts that I have bought says "made in China, Mexico, etc"... We don't seem to make much of anything here anymore except degenerate kids and degenerate politicians.

But I don't care. I think the japs make good stuff. It's not a good thing for our country I suppose but they still make good stuff. Just consider a Kubota compared to????? Night and day.

However, the Duramax is an Isuzu Engine. GM owns Allison for a while now.

I used to have a 1978 bright yellow Chevy "Luv" mini truck with an Isuzu Engine in it. It gave me fewer problems than my 2004.

Truth is: I was a fool for buying a 1st generation product with a price point that high. I tried not to but there were NO used Chevy Diesels when I purchased. I took a chance and it has not been the best decision I ever made. It's still a good truck but it will take a LOT of selling for any of the big 3 to have me get off that kinda dough again.

If you have such close ties to GM, would you be willing to find out if the injectors have in fact, been upgraded or modified?

And is there a reason why they can't or won't provide "new" injectors instead of "re-mans"? Money is usually the driver of such decisions but damn....

The GM Book pays/bills out something like 18+ hours to change 8 fuel injectors @ 120 per hour NOT INCLUDING THE PRICE OF THE INJECTORS ($235 each after core return).

Flippin' crazy.