Diesel Comparisons
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From: Western New York
Diesel Comparisons
I was wondering if anyone happed to know the difference between GMC, Ford and Dodge horsepower and torquewise. I was watching trucks today and they had a Duramax on there and when they dynoed it, it had like 197 hp and 4?? torque. I was wondering, does dodge have more than this? That was rear wheel HP. If anyone knows the stock Rear wheel hp of a dodge that would be good but how does the hp and torque compare for the engines alone?
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From: Tomball, Texas
Re:Diesel Comparisons
[quote author=cp link=board=8;threadid=22483;start=0#msg210677 date=1069109281]
I saw an ad for GMC which stated the DMax is now up to 310 hp and 565 ft-lb.
[/quote]
I saw the same ad but also found out that number is only 2nd gear through 4th gear. 1st and 5th gear is still 300hp. Guess the Allison may have a problem with the higher torque in low gear and overdrive.
MikeyB
I saw an ad for GMC which stated the DMax is now up to 310 hp and 565 ft-lb.
[/quote]
I saw the same ad but also found out that number is only 2nd gear through 4th gear. 1st and 5th gear is still 300hp. Guess the Allison may have a problem with the higher torque in low gear and overdrive.
MikeyB
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From: Red Deer, Alberta Canada
Re:Diesel Comparisons
Actually the new Dmax is going to be about 350 ponies, but only available in gears 2, 3 and 4. Not 1 and 5, they will continue at 300 Hp 
I watched trucks too, what a joke. All that hardware for 200 Hp increase?? :
Not to mention the "upgrades to the transmission" they mentioned. Yup, anything over 70 Hp and the tranny will put you into limp mode. Big $$$$$$
J-eh
I watched trucks too, what a joke. All that hardware for 200 Hp increase?? :
Not to mention the "upgrades to the transmission" they mentioned. Yup, anything over 70 Hp and the tranny will put you into limp mode. Big $$$$$$J-eh
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Re:Diesel Comparisons
I didn't see the episode of trucks but obviously they found some shortcomings in the Allison. They will limp if too much power is put to them but the last time I checked, DC wasn't the front runner for bullet proof automatics, save for the 727. It doesn't matter, they are to offer an uprated unit with some safety factors built in. Like anything else, if you don't like the offering from the factory you can usually upgrade it for as much $$$ as you want to spend. It has been this way since 1989, the cheapest engine to get extra grunt out of is the cummins. They will come a little closer together with all the electronics in the ECHO but still - will be cheaper. Also, the Allison is a special component, there are fewer vendors and a lot less run up time for more to jump into the pool to bring the costs down. I haven't heard too much about the "torque-shift" by FOMOCO as far as reliability. If you plan to get 1100 ft-lbs cheaper buy DC that simple and live with the rest of the shortcomings of the truck. - Sorry not "shortcomings" - differences.
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Joined: Feb 2002
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From: Red Deer, Alberta Canada
Re:Diesel Comparisons
Ok, I got somebodys hackle up.. 
The Allison transmission is too smart for the aftermarket as it will sense the slippage (chime in 6.6-V8 if I am mistaken) and defuel the engine or limp it if you really trash it. Now I have no comment about the 6 spd as I haven't seen one yet.. I don't think you could put that through the 48RE either so lets draw on that one.
And yes the DC tranny it nothing to write home about. I was mearly commenting on the high dollar items required to make the 225 HP addition (450 total) they wanted at the wheels. The fuel box, Propane and Nitrous for 225??
Too bad they didn't have the same budget for a Dodge on that show.. :-
As for "differences", here is a can of worms for ya..
IFS ...... thats enough there to debate for years to come..
The Allison transmission is too smart for the aftermarket as it will sense the slippage (chime in 6.6-V8 if I am mistaken) and defuel the engine or limp it if you really trash it. Now I have no comment about the 6 spd as I haven't seen one yet.. I don't think you could put that through the 48RE either so lets draw on that one.
And yes the DC tranny it nothing to write home about. I was mearly commenting on the high dollar items required to make the 225 HP addition (450 total) they wanted at the wheels. The fuel box, Propane and Nitrous for 225??
Too bad they didn't have the same budget for a Dodge on that show.. :-
As for "differences", here is a can of worms for ya..
IFS ...... thats enough there to debate for years to come..
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Joined: Jul 2003
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From: SC
Re:Diesel Comparisons
Roger that.
Shouldn't any heavy duty truck come with a solid front axle?
are we just behind on technology and the IFS is really better? We aren't putting a 5er on the front bumper. Off-road is a different story. Hardcore 4x4 will break the IFS units.
So, for a street truck, is solid really needed? :-
what do you guys think?
Shouldn't any heavy duty truck come with a solid front axle?
are we just behind on technology and the IFS is really better? We aren't putting a 5er on the front bumper. Off-road is a different story. Hardcore 4x4 will break the IFS units.
So, for a street truck, is solid really needed? :-
what do you guys think?
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From: New Holland, PA
Re:Diesel Comparisons
I think the guys with slide in campers will agree with me that a straight axle is the way to go for heavy loads. Load 'er down and the alignment doesn't go all knock-kneed. How many medium duty and heavy trucks have you seen with an IFS? IFS is strictly for comfort, to carry heavy loads reliably nad economically a straight axle is a must.
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