funny info about new LLY duramax

[Tomeygun]

I am not sure this is the right forum,

BUT it is engine related, and it is 3rd gen competition



Here is what I read:



The LLY's 310/565 power level was published (for internal use) sometime mid-2003. Since then, both GM & Ford have jockeyed for position, and we have since learned that the regular production power/torque specs for the LLY will be somewhat higher. A torque number of 590 lb-ft for the LLY has been stated in recent television commercials produced by Chevrolet and 590 has shown up in a variety of publications, such as the March/April 2004 issue of Truck Trend magazine.

Reports have indicated that the horsepower and torque increase will only be available in 2nd, 3rd and 4th gears (Allison automatic), and the LLY's power/torque will remain at the previous LB7 level of 300/520 in 1st and 5th.



Lets see, our 48RE will take the factory 600 lbs, BUT thier beloved allison has to be backed down at EVEN FACTORY POWER LEVELS



you have got to be kidding me! - i would not own that goofy trans if you paid me!!

 

[DPelletier]

Tommygun,



- I laugh in the face of thier vaunted Allison. Ha! Makes you wonder if the 590 is real or if its like Fords 560 that magically went up 10 ft lbs after hearing that the '03 HO was going to be 555 ft lbs.

- For all thier chest thumping the Allison apparently leads the pack in repairs per 1000 units. Saw it on another thread, Ford - 3. 2 failures, DC - 3. 4, GM - 6. ?.



Love my NV-5600.

Cheers

Dave

 

[RobertBolinger]

So what's up with their input shaft picture advertisement-something about how their mighty midrange transmission is so much better than Dodge/Ford???



And how is it that this same mid range transmission cannot take the power levels of what is basically a warmed over 727 with an Overdrive (I'm running for cover!)



I love my NV5600...

 

[Mopar_Mudder]

I heard this same thing along time ago when Dodge first said the 600 was coming out.



Make no sence to me, 5th is where I would want the power the most. Kind of false advertising in my mind also. Dodge should jump on this and inform the general public with some "colorful" adds about the fact.

 

[DPelletier]

I say, if they're going to start showing input shafts, DC should breakout the connecting rods (and pistons and crank, etc. , etc. )



Dave

 

[BRayls]

dave those numbers I posted,I work in the auto trans plant(DC) and in our meetings we get the numbers. they are from an outside company(I am thinking jd powers).

 

[Prairie Dog]

I don't know about you guys with auto's but our 6 speeds don't make full torque in first and second either. Dodge refers to it as de-fueling. After having driven a Hemi powered Durango it seems clear that they do it there too.

 

[BRayls]

yes the hemi powered trucks do not get full power until the go into second. the dakotas with the 4. 7 and the electronic trans from the Itp plant are also in that boat.

 

[Farmall Hauler]

Hello to all!!

I find this a very interesting thread! Another thing that I have read somewhere is that the ZF transmission in the Chev. will not hold up to the new HP, and TQ numbers of the new Duramax. This is why the numbers only apply to the Allison transmission. And, I also think that it is the same transmission in the Ford as well.



As I say, it is all interesting!



Hope all had a great St. Patrick's Day!

 

[Mopar_Mudder]

Originally posted by Prairie Dog

I don't know about you guys with auto's but our 6 speeds don't make full torque in first and second either. Dodge refers to it as de-fueling. After having driven a Hemi powered Durango it seems clear that they do it there too.

I would like to see proof of that. First of all it has no way to monitor what gear it is in that I know of, I suppose it could use rpm/mph. And in my truck 2nd gear is where I can most easily slip the clutch, their is full power their.



The only cut in power that I have heard of is on the automatics it lowers the power while it shifts gears.

 

[Gary - K7GLD]

I thought the new DC automatic shifting was controlled, to a degree at least, by computer - so why WOULDN'T it "know what gear it's in"?

 

[Mopar_Mudder]

Originally posted by Gary - KJ6Q

I thought the new DC automatic shifting was controlled, to a degree at least, by computer - so why WOULDN'T it "know what gear it's in"?

Talking about the 6 speed, it doesn't shift by itself that I know of, LOL, I wish some times though...

 

[BRayls]

I think he(mopar_mudder) is mostly refering to 6spds. the units that are in the diesel are not electronic shifted,they have electronic governor with thermo on it. one thing it tells the truck, not to shift to OD if it is not warmed up. I see a trip to my buddy in test garage to verify this but I am pretty sure they do not limit the engines on the 48re(made at KTP). not positive on that but I am pretty sure that is only on the 4spd in the half tons and the 5 spd auto(ITP I 4 spd,ITP II 5 spd auto). all these plants are local here. as for the v-b I built them for 7 years I know them well. LOL,built them for years and forgot the one piece of electronics that most would instantly remember the solinoid that is on the lower v-b that has the big plug and wires,Oo. and I forgot it. anyone know what it does ,for sure? I will find out if not.

 

[CATCRACKER]

have you seen the allisons 1st gear ratio. it blows the 48re away dont need much power in 1st gear when its that low. look at it.

 

[Bill Stockard]

Originally posted by CATCRACKER

have you seen the allisons 1st gear ratio. it blows the 48re away dont need much power in 1st gear when its that low. look at it.

There's a reason for that... low torque output at slow engine speeds.



Bill

 

[KBennett]

I would not doubt if the torque output is governed in 1st and 2nd on a 6-speed. My "glory gear" is 3rd. You can't do much in 1 and 2 anyway, your only in them for a moment.



6th pulls real hard at 90

 

[hotram03]

You ask me the chebbies boys and phords are still sore about us getting the Cummins engine in our trucks, kinda like how we got the hemispherical headed engine to the tune of 426 cubes yrs ago and kicked the A@Ses on and off the tracks across the country. I say if your gonna pull something line up those cylinders otherwise ride around in your glorified cowboy cadillac and play with wanna be's in the V family. Just my input

 

[DPelletier]

Thanks BRayls,

I would have given credit where credit was due, but I couldn't remember where I read that!

I'm with Mopar_Mudder, I'd like to see definative proof that the NV-5600 trucks defuel in any gear.

Catcracker, its not the defueling in first that would bother me, but the defueling in 5th. That'd be annoying as He**! I don't drag race my truck, just tow/haul my stuff.



Dave



ps. Bills right! The Cummins doesn't need as low a first gear. The only truck that can start from a stop with a load with no throttle. Now that I know the competition's got a lower first gear, I'm even more impressed with the Cummins.

 

[Prairie Dog]

Mopar Mudder, haven't you ever noticed how weak acceleration in 2nd gear is compared to 3rd? I'm not sure how they do it either but I have found an odd looking thing or two attached to the transmission. There's a black plastic line of some sort that I've never seen on a manual trans before. Anybody know what I'm talking about here?

BTW It's even more evident w/ a fueling box.



Scotty

 

[Punkineater]

Might as well give Ford and GM their transmissions. We definitely have the upperhand with the Cummins, but the Dodge automatic is pure crap and always has been. Guaranteed if Dodge inked a contract with Allison tomorrow you guys would be drooling at the chops to own an Allison over your 48RE or 47RE. I'm a fan of my truck, but you guys sound just as bad as the Ford guys over at Dieselstop claiming loyalty to their leaky, couphing 6. 0 Powerstrokes. At least give credit where credit is due.