What can I expect from an '08 Duramax - Chevy and GMC Duramax Diesel Forum
07.5-2010 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 14 (permalink) Old 06-09-2007, 09:22 PM Thread Starter
iCe
 
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Location: Weimar, TX
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What can I expect from an '08 Duramax

What can I expect from an '08 Duramax? I have one on order. It should be here in late June or early July (unless the dealer lied) .


The last diesel pickup that I owned was a '95 Powerstroke. I bought it new and ran it through 2001. I loved that truck... This will be my first Chevy truck product. I've always been a Ford man except for my '69 Camaro (that I wish I still had). I drive an F250 Superduty 4WD at work and the ride is so pitiful that I decided to move to a Chevy product.

Unfortunately I am buying my first Duramax the same year that they decide to put emission crappage on Diesels...

On order: 2008 2500 HD 4WD Crewcab, short box, Duramax, Allison tranny. LTZ Z71 option package
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post #2 of 14 (permalink) Old 06-10-2007, 11:50 AM
 
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Emissions crap has been on the duramax since 2001, when they first came out. Its just now with the LMM there is tons of crap that will be hard to by-pass.

I have heard it all from a 400hp twin turbo to an 8 speed allison. Its all bs right now. I mean heck the Lmm just came out a month ago.

It should be interesting

2006 Silver Birch LBZ, LT2, Extended Cab Short Bed

4" MBRP Turbo back with cat delete and 5" tip, EGR blocker plate and finger stick, Autometer Cobalt pyro and boost gauges, EFIlive, Ranchhand grill guard, 285 75 R16's, All head lights on mod.
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post #3 of 14 (permalink) Old 06-10-2007, 01:08 PM
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IIRC the emissions stuff didn't start until the LLY for federal emissions. I don't know for sure about california emissions....I know that the LB7 did have some emissions stuff on it for california, but I don't know what year it started. Just give it time and the aftermarket will be able to bypass all that stuff. Just hope that you're not in a state that requires an inspection. I know for the LMM, I don't like the location of exhaust exit....almost straight out the back. Only time will tell with the new engine. I have heard that it runs real strong, but I haven't drove any.....I don't exactly like the new body style....I guess it will have to grow on me like the past changes.

SOLD
2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7
4" turbo back MBRP exhaust, Cognito UCAs & HD tierods
TST Powermax Programmer, Diablosport Predator
305/70-16 BFG T/A KOs on Eagle Alloys Series 187
Clifford remote start. High Idle, Bilstein 5100s, 1.5" lift blocks
CAT fuel filter w/ nicktane adapter
Magnum Force Stage 2 intake with AMSOIL filter
Racor 2 Micron pre-OEM with heater & water sep
Lightforce 140s from Madjackracing
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post #4 of 14 (permalink) Old 06-10-2007, 01:13 PM
 
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yeah the LB7's have the EGR tho right? And some of the mexi-fornia trucks have cats. It really started with the LLY your correct.

I have yet to drive an LMM also but its what 5 more hp than the LBZ? miuns the stupid re-gen mode I personally think the 02 LB7 and the 06 LBZ are the best trucks.

ditto, the new body style looks like >> :moon

2006 Silver Birch LBZ, LT2, Extended Cab Short Bed

4" MBRP Turbo back with cat delete and 5" tip, EGR blocker plate and finger stick, Autometer Cobalt pyro and boost gauges, EFIlive, Ranchhand grill guard, 285 75 R16's, All head lights on mod.
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post #5 of 14 (permalink) Old 06-10-2007, 08:01 PM
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I don't think my truck has EGR (it is federal emissions)....I bet the the california emissions does though. I could be wrong.

SOLD
2004 GMC 2500HD D/A CC Carbon Metallic w/ LB7
4" turbo back MBRP exhaust, Cognito UCAs & HD tierods
TST Powermax Programmer, Diablosport Predator
305/70-16 BFG T/A KOs on Eagle Alloys Series 187
Clifford remote start. High Idle, Bilstein 5100s, 1.5" lift blocks
CAT fuel filter w/ nicktane adapter
Magnum Force Stage 2 intake with AMSOIL filter
Racor 2 Micron pre-OEM with heater & water sep
Lightforce 140s from Madjackracing
http://WWW.ATPTRUCKS.COM/
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post #6 of 14 (permalink) Old 06-10-2007, 10:12 PM
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I heard the new powerstrokes with emissions were only gettin 9MPG and up to 13MPG once more broke-in. I assume the chevs are better?

05 GMC Duramax:
- Banks six guns with PDA
- AFE stage2 intake
- MBRP 4" Turboback exhaust
- Trailmaster 6" lift
- BFG Mudterrain35's
- Halo 16" rims
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post #7 of 14 (permalink) Old 06-10-2007, 10:49 PM Thread Starter
iCe
 
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Dang... I need to bone up on my acronyms...

Thanks for the replies... since I've been a Ford person all of my life I'm ambivalent on the looks of the new body. Mines a Texas truck or at least it will be when it gets here and I live in the country so no emissions inspections... yet...

On order: 2008 2500 HD 4WD Crewcab, short box, Duramax, Allison tranny. LTZ Z71 option package
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post #8 of 14 (permalink) Old 09-13-2007, 11:01 AM
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The 08 Model Year Duramax is mainly a carry over, 365 hp, 900 N-m torque. There are some material and calibration enhancements, but they are transparent to the end user. Changes may slightly increase fuel economy for some people. There is no such thing as a typical Duramax driver, the applications vary too much.
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post #9 of 14 (permalink) Old 09-13-2007, 04:06 PM Thread Starter
iCe
 
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Cool. Thanks for the info. Mine finally came in about 2 weeks ago. As I was driving home I wished that I had packed a bag so I could just keep driving.

Likes: Too many to list

Dislikes:
It pulls hard to 95mph and then speed no longer increases
Nothing else that I can think of.

On order: 2008 2500 HD 4WD Crewcab, short box, Duramax, Allison tranny. LTZ Z71 option package
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post #10 of 14 (permalink) Old 09-13-2007, 08:25 PM
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Quote:
Originally Posted by iCe View Post
Dislikes:
It pulls hard to 95mph and then speed no longer increases
Nothing else that I can think of.
Thats where fuel shut off kicks in. I only had mine kick in once.

If your unhappy with that then you can remove the limiter with any decent programmer.... But I cant see a need to do 95+

Jason
2006 Silverado 2500HD LBZ CC SB
Exterior: Escalade Handles, Front windows tinted to match the rear, painted bumpers & mirrors, billet grille, 305/50/20 Cooper Zeons on BMF Novakanes Death Metal, Cognito Braces, Stainless Sleeves, Train Horns
Interior: 4 Kicker 10in Subs in 2 custom box's, Autometer Ultra lite II Pyro and Boost gauges, Aeroforce Interceptor Gauge, HID Lows & Fogs, Painted accents
Performance: EFI Live Tuned by Blackout Performance, Custom Blackout Performance S475 over stock twins, 45 over stock injectors, MBRP Turbo Back Stainless Exhaust (Straight piped), Raptor Lift Pump, AFE Filter, GMAX6 kit with Suncoast 1057 converter installed by Blackout Performance
1999 Ford F-550 PowerStroke ''Wrecker'' **Jerrdan bed, S&B Intake
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