The Cummins to come
11-01-2009, 07:03 PM
#16
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Cummins sets the power rating for durability . That's why the HD diesels have lower ratings than the lighter models . High hp means nothing hooked to a tow truck .
11-01-2009, 07:40 PM
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So where do you get this urea and what happens if you run out? Does the truck go into limp mode or does it stall and leave you on the side of the road??
http://www.physorg.com/news145556132.html
http://www.physorg.com/news145556132.html
11-01-2009, 10:03 PM
#18
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I need 450hp to pull a real load. I don't care if the truck only lasts 200,000 miles. Because where I drive the truck body and suspension will be trash by then anyways.
11-03-2009, 05:49 PM
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If I have read my news right sounds like every diesel built after 09. So 2010 and beyond will be required to have irea. So maybe if its required then cummins can change how the do it now and give a little better mileage
11-03-2009, 06:04 PM
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The 6.7L Cummins put in the 2500/3500 non C&C trucks met the 2010 emissions standards in 2007.5 and will not have Urea injection for the 2010 MY...
11-03-2009, 06:11 PM
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I would expect the 2010 ratings to stay the same no matter what Ford does since it meets those emissions requirements already. If you run out of DEF or diesel exhaust fluid, the trucks are all set to go into a limp mode. It is planned that you should have quite a while between refills, plenty of warning and the DEF should be available at diesel stations.
11-05-2009, 08:48 AM
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From what I am reading the current 6.7 does meet the Nox requirements for 2010. In a personal opinion I am suprised they are not going the urea route. Guess it is cheaper to produce them with the current EGR and DPF. It would be nice to get rid of the EGR however because that seems to really cut alot of life out of the engine. Also seems weird to have some engines with urea aftertreatment and some that dont, from an assembly line standpoint.
The 6.4 will still exhist, think it is part of Navistar's Maxxforce engine line.
The 6.4 will still exhist, think it is part of Navistar's Maxxforce engine line.
11-05-2009, 08:52 AM
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11-05-2009, 11:04 AM
#27
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From what I am reading the current 6.7 does meet the Nox requirements for 2010. In a personal opinion I am suprised they are not going the urea route. Guess it is cheaper to produce them with the current EGR and DPF. It would be nice to get rid of the EGR however because that seems to really cut alot of life out of the engine. Also seems weird to have some engines with urea aftertreatment and some that dont, from an assembly line standpoint.
The 6.4 will still exhist, think it is part of Navistar's Maxxforce engine line.
The 6.4 will still exhist, think it is part of Navistar's Maxxforce engine line.
Current 6.7 DOES MEET 2010 WITHOUT UREA.
SCR UREA will be used on the 6.7L in Cab and Chassis models, though.
SCR makes more sense if you're heavily loaded. At high loads, you make less NOx and hence need less DEF/UREA. But at low loads (like a grocery getting pickup) the NOx absorber used on the current 6.7L is much cheaper and a better fit for the package.
That's Cummins' take.
JH
11-05-2009, 01:18 PM
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11-05-2009, 10:05 PM
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Thanks HOHN, makes sense. Wonder if it will be the same engine in both but the chassis's will just get the SCR/urea doser bolted on in the exhaust. Not sure how the engine ECM interacts with the SCR.
How am I wrong?
"The Cummins 6.7L Turbo Diesel engine is available in Dodge Ram 2500 and 3500 Heavy Duty pickup trucks. It offers more horsepower, more torque, and enables 2010 emissions compliance while delivering these power/torque increases."
2010 emissions, aka Tier IV calls for a reduction of NOx emissions. Try reading the sites you quote before calling someone out.
"The Cummins 6.7L Turbo Diesel engine is available in Dodge Ram 2500 and 3500 Heavy Duty pickup trucks. It offers more horsepower, more torque, and enables 2010 emissions compliance while delivering these power/torque increases."
2010 emissions, aka Tier IV calls for a reduction of NOx emissions. Try reading the sites you quote before calling someone out.
11-05-2009, 11:57 PM
#30
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The Urea injection on the HD 3500 models is due to the use of the PTO for stationary use, IE cranes, winches, compressors.. The NOX absorber can't funtion properly with steady 1500-1800 rpm stationary, so the Urea takes care of that. So if you have a "service" truck and run it all day, you may run out of the fluid before you even get to the road..
EPA sucks..
EPA sucks..