Duramax for 1/2 tons / Hummer?

[CPittman]

GM announces new 4. 5L V8 Duramax diesel for half-ton trucks and HUMMER H2 - Autoblog



Probably posting this in the wrong place...

 

[ezcurra]

"despite sharing its name with the older 6. 6L Duramax diesel that was developed in partnership with Isuzu, the new 4. 5L Duramax was developed completely in-house by GM"



Scary

 

[TFucili]

Integrated exhaust manifolding... Isn't that what made flathead Ford's overheat?

 

[WDixon27]

you may wanna keep a close watch on egt's with this mill, that could get ugly when it starts cracking the heads

Integrated exhaust manifolding... Isn't that what made flathead Ford's overheat?

 

[16919]

Good Ol Duracrap!!!!!!!!!!!!!!!

 

[Mundgyver]

I think they are going to have a few bug's Seems like GM always lets the customers work out the bugs with their engines:-laf

What is that they say "When it comes to repair, expense is no concern"

This will be interesting to watch, wonder what their projections for engine life on this new baby are going to be

 

[NUKEMAN]

I wonder if it will have piston slap like every Vortec engine GM ever produced, including my wifes 8. 1L.

 

[CumminsBu]

This is good news, because this should help speed up the development for the CTD in the Durango, Dakota and Ram 1/2ton. A rumor that I keep hearing about for the last to years.

 

[AKaiser]

This is good news, because this should help speed up the development for the CTD in the Durango, Dakota and Ram 1/2ton. A rumor that I keep hearing about for the last to years.

That's not a rumor. Cummins announced this 9 months ago. Cummins to Produce Light-Duty Clean-Diesel Engines at Columbus Engine Plant

 

[TFucili]

I was thinking further on this and, looking at the big picture, the last time diesels began to get closer to main-stream popularity GM almost single handedly pulled the rug out with their convert-o-motor. Now, as we may be on the verge of a renaissance, I sure hope history doesn't repeat itself:{ Innovation is not the hallmark of Gimmick Motors

 

[JFaulkner]

They should be ok as long as they don't forget what Isuzu taught them about diesels.

 

[Cattletrkr]

Why do they need over 300hp and over 500tq on a grocery getter. I thouhgt the reasoning was to get better mileage.

 

[WDixon27]

hp sells, at least being a diesel it should still get decent mileage compared to a gasser

Why do they need over 300hp and over 500tq on a grocery getter. I thouhgt the reasoning was to get better mileage.

 

[JasonCzerak]

Why do they need over 300hp and over 500tq on a grocery getter. I thouhgt the reasoning was to get better mileage.

If you keep your foot out of it, you'll still get the same millage if it was rated for 150hp and 250 tq right? And yeah, numbers do sell.

 

[WHeitzman]

I wonder if it will have piston slap like every Vortec engine GM ever produced, including my wifes 8. 1L.

My Trans Am has piston slap but the engine runs great, never had a problem with it. The only problems are with the cheap parts GM used on everything else. Their gas engines aren't going to match the Cummins in longevity but they are great for someone who doesn't need to go 200,000 miles every 5 years and get good mileage. The trans am just averaged over 28 mpg on the highway over the weekend