LLY = 210 HP for municipal use

[20050528|8|000731|000000|205.188.117.71]

I called my friendly dealer today to get pricing on a 2004. I asked him to check into the supposed new Duramax LLY. He got back to me and did confirm that there was a LLY option, but it was a detuned (210 HP) version of the current LB7 that is intended for municipalities that do not need, or want 300 HP. As of today, there is still no

[77TransAm]

The LLY will be available in the 210 hp version for medium duties, just as the LB7 is today. It will also be available in the 310 hp / 565 lb*ft version for the rest of us. smile.gif

[MAV]

310 hp.....thats the same number I heard from a good source also. 2006 will be the 340-360 hp????

[Kennedy]

Originally posted by 77TransAm:
The LLY will be available in the 210 hp version for medium duties, just as the LB7 is today. It will also be available in the 310 hp / 565 lb*ft version for the rest of us. smile.gif Now to clarify, (correct me if I am off base here) the 210HP medium duty is just as strong/stronger performing than our 300HP rated programming, just a different means of rating, and slightly different programming. The 210HP bieng a "net" HP rating just like RWHP...

[koolgt]

just to clarify both heavy duty(560) and medium duty duramax's should have the same number the only differnces in the engines are just the oil pans, flywheel housings, wiring, and some other cosmetic things, but both should have the same numbers the 04 duramax is rated at 320HP and 565ft/lbs torque and my source is very reliable :D and just an update on the 04's we have been runing pilot engines(test engines) and such so we can get the feel for them, there still shooting for a middle of december build date, so sometime in january they should be available at dealers, and as of right now i have heard little to no rumors on an 06, there probobly is, but nothing that i care to comfirm or deny, just getting way to ahead of yourself:)

[tysmith]

I remember back in '94 when we got the '94 Dodge/Cummins 5 spd with 175 hp, I thought THAT was cool. :eek: Today, we drive off of the lot with 300+ hp depending on brand. I forget the hp numbers on my '86 6.2. Maybe 130? If the exponentially increasing trend continues, we should see 1200 hp by 2020. ;)

Ty

[77TransAm]

kennedy, the hardware is the same (except as mentioned by koolgt), but the calibration really achieves 210 hp. Most fleet operators are much more concerned with fuel mileage than how fast the trucks can run up a grade, and I believe that the lower hp cals are marketed with that as a selling point.

koolgt, there are 300 hp GMT560s available, but 210 hp seems to be a lot more common. I've heard the '06 rumors (we're already working on cals for them), but I don't get to confirm or deny either. :(

[koolgt]

Originally posted by 77TransAm:


koolgt, there are 300 hp GMT560s available, but 210 hp seems to be a lot more common. I've heard the '06 rumors (we're already working on cals for them), but I don't get to confirm or deny either. :( trust me when i tell u this..those #'s i posted will be the numbers..dont doubt, just believe:)

[77TransAm]

koolgt, one of us is going to get a suprise. I just saw an indication that neither of our numbers are going to be correct after this week... smile.gif

[koolgt]

Originally posted by 77TransAm:
koolgt, one of us is going to get a suprise. I just saw an indication that neither of our numbers are going to be correct after this week... smile.gif trust me man, i work there, i make em i see em 10 hours a day 6 days a week, i know what im talking about

[Professor]

On the LB7 performance differences:

I thought the only difference (other than non-performance impeding hardware changes including the block) was basically a rev limiter change on the 210 HP municipal versions. What caught my eye was the 90HP drop in the rating when I knew the HP on the DMax curve was very flat. I was thinking there had to be something else to it but the torque for both was 520. You would have had to limit the RPM to around 23-2400 to make those numbers work but I think it was much higher than that.


I remember a GM document (doesn

[Professor]

Found it!

Labeled Template for GM stuff for Jeffy

Looks like all of the update notes are in DOC form labled this way.

LB7 DOC (http://media.gm.com/division/powertrain/products/engine/truckengines/2003/truck_benefits/lb7.doc)

[HD-Nate]

). There are no hardware differences between the two 6.6-liter engines, and all changes are accomplished with control electronics in the engine control module (ECM). Hmmm, I wonder who will be the first city worker to drop a "Hot Juice" in their "city" truck. :D

[koolgt]

well i dont know about the ecm changes, i agree with everything except for the HP ratings, no one at my work, has ever heard of this municipal rating, and the oil pans, dipsticks are still the same they have not changed, were that page said it had been changed, that page is true to a point

[77TransAm]

koolgt, where I work calibrations are the focus. Hardware doesn't matter so much - it's the same whether it's a 210 hp medium duty or a 300 hp pickup (except for the obvious packaging differences, like the SAE 3 flywheel housing, the oil pan, etc.).

All I'll say about the LLY is don't be surprised to see a last minute cal change that makes the numbers slightly different than those you've seen so far....

Finally, to keep this on topic, there really is a 210 hp medium duty version of the Duramax 6600. You can see it for yourself if you browse around on the medium duty truck part of GM.com. The main difference is the governed speed of the engine - 2900rpm for the 210 hp version vs. 3250rpm for the 300 hp version. They both have the same hardware and they both produce 520 lb-ft at 1800 rpm.

[Boonbltz]

regardless of what the changes are do any of you insiders know of when these changes will become available to the public

[koolgt]

Originally posted by Boonbltz:
regardless of what the changes are do any of you insiders know of when these changes will become available to the public sure do:) 04 duramax production slated for Dec 18th...give it about a month or so to make it from the warehouse to the truckplant so late january, begining of febuary, the new duramax will be avalable for public purchase

[LMorse]

Will the 04 duramax have much more power potential?? Any tranny updates for 04?? Thanks...

[Boonbltz]

Thanks alot koolgt, it means alot to us waiters to hear even the most slight bit of positive info from someone who is so confident. I don't care so much for the extra horse power as I do for the upgrades towards the longivity of this engine. I work with turbo diesel locomotives everyday with each one having on the average of thousands of hours on them and far and few oil changes between all those hours of running 24 hours a day and seven days week. Because of this testimony I purchased a 2001 duramax with the thoughts of at least 200,000 miles expected before any major maintance, boy was I wrong, injectors, fuel/oil contamination, injector pumps,etc. I will give this upgraded motor a whirl and if I get burned a second time I guess I will buy a Hyundia (however you spell it)

[koolgt]

well i also heard last night to that there already working on another updated 05 engine, and it said that they want that to be close to production by shutdown in july, so im not sure how many 04's theres gonna be or anything about the 05 i just started hearing this last night