Interesting...they already met the 2010 emissions and still made almost 500hp. Google is your friend. Give it a try.

 

u can probably get retrofit some pre-emmison stuff on they 6.9L


maybe.

But man can u imagine a stock sc/lb truck with 425hp

 

... 500 HP stock? Show me where... And the Current Duramax DIDN'T meet 2010 EPA standards, thats why they had to come out with a new version. The only engine that met the standard was the 6.7L Cummins.

 

We're not talking about the CURRENT production DMAX. The prototypes they were testing met the 2010 requirements as well as produced over 450 hp, hence the 425hp for the production units in '10. Go do your homework, I'm not going to do it for you. BTW- making 550hp in a DMAX is quite easy. Especially since it was designed that way to begin with. Pro Mod parts and technology go a long way.

 

what i hear is that the 5.9 couldn't meet emissions either, so thats why they did away with it

 

Exactly, except Cummins passed 2010 tests in 2007, meanwhile Izusu and Navistar waited until the last minute (so to speak) to come out with a production engine that can handle it.

As far as the new 6.9L goes, it makes 425HP at this point, and its not even out yet, so why are you bench racing it already? You have another 6-10 months before this thing hits showroom floors. It could be tuned to 390HP by then, or lower, or higher. I know what they produced in testing, I wasn't asking you to give me answers. But the 2010 Engine isn't Stock yet is it, hence the term "Prototype." I either misunderstood what you were saying, or we both misunderstood each other. As far as Pro-Mod parts and technology goes, I don't understand why you even said this. Pro-Mod parts? If they are stock, they aren't "Pro-Mod". They may have been 5 years ago, but thats the point of racing, to develop better parts for the OEM. Formula 1, Le Mans, Indy, they all work this way, and the diesel world is no different. Technology is right about equal between all 3 engine manufacturers, but do you really think pumping computers into engines is a good thing? I sure as hell don't. There is no question the tried and true 12V is the king of reliability, and can produce the most horsepower out of any of the engines when built to the hilt. It does it without a computer, granted its not often streetable power, but either are most 1000HP+ D-Max's or CR Dodges running numerous computer programs and dozens of sensors.

In either case, the world of great diesel engines is here to stay, at least for the next few decades, lets celebrate .

 

I'm not even going to justify that with an answer.

 

x2

 

Who said that the 1000+ HP Dmax's werent Streetable? Keith Drives Nasty girl back and forth to work, Also, I believe that Twin SC DMAX is making over 1000 HP and is very much a daily driver..

 

[QUOTE=MotorOilMcCall;207722]Exactly, except Cummins passed 2010 tests in 2007, meanwhile Izusu and Navistar waited until the last minute (so to speak) to come out with a production engine that can handle it.

As far as the new 6.9L goes, it makes 425HP at this point, and its not even out yet, so why are you bench racing it already? You have another 6-10 months before this thing hits showroom floors. It could be tuned to 390HP by then, or lower, or higher. I know what they produced in testing, I wasn't asking you to give me answers. But the 2010 Engine isn't Stock yet is it, hence the term "Prototype." I either misunderstood what you were saying, or we both misunderstood each other. As far as Pro-Mod parts and technology goes, I don't understand why you even said this. Pro-Mod parts? If they are stock, they aren't "Pro-Mod". They may have been 5 years ago, but thats the point of racing, to develop better parts for the OEM. Formula 1, Le Mans, Indy, they all work this way, and the diesel world is no different. Technology is right about equal between all 3 engine manufacturers, but do you really think pumping computers into engines is a good thing? I sure as hell don't. There is no question the tried and true 12V is the king of reliability, and can produce the most horsepower out of any of the engines when built to the hilt. It does it without a computer, granted its not often streetable power, but either are most 1000HP+ D-Max's or CR Dodges running numerous computer programs and dozens of sensors.

In either case, the world of great diesel engines is here to stay, at least for the next few decades, lets celebrate .[/


Isuzu ? where did you get that, isuzu had nothing to do with the LMM. Gm owns 100% of Dmax . Isuzu and GM worked together to come up with the initial deign of the first dmax, it was a joint effort.Isuzu is not involved ,or has no ownership in DMAX.