Hello!
New here.
I currently own a 2007 GMC 2500 HD Duramax.
Prevoiously owned a 2003 GMC 2500 HD Duramax, and a 2007 Ford F350 powerstroke.
I am looking to trick some extra fuel economy out of my 07 GMC. I think my 03 got better economy, but maybe it is the new low sulpher diesel fuels or winter blend fuel that seem to be giving the low (unexpected) fuel economy.
welcome to the forum...what causes your unexpected low fuel economy isn't really the trucks fault nor is it your fault but all the emission stuff the goverment requires to have on them..
the best thing to do is install a Tune from either PPE,ATS,Quadzilla or EFILive and that should get you another 2-3MPG gain also do a exhaust for it from either Silverline or MBRP.
__________________ James
TyreBoyz Pulling Team
Pulling Truck called Late Nights.05 LLY 3500 EC LB DRW tuned By Idaho Rob.
Work truck,06 LBZ 2500 CC SB SRW,tuned by Idaho Rob and PPE at times
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP.
Thank you for the info.
I keep seeing info on the tuners you have mentioned above. I have a hypertech, and now feel regretful for buying it as it appears to be not very popular. Maybe I can sell it on Ebay and buy one from PPE.
Anybody using a hypertech??
Well maybe I can get on track now that I found all you guys here.
i have never heard any complaints off the Hypertech but most guys want a little more then what they offer,i would run it before you sell it and see what it does and if it doesn't do what you want it to do then sell it.
sick looking truck you got there,what size wheel'n'tire combo do you have and does it have a lift?
__________________ James
TyreBoyz Pulling Team
Pulling Truck called Late Nights.05 LLY 3500 EC LB DRW tuned By Idaho Rob.
Work truck,06 LBZ 2500 CC SB SRW,tuned by Idaho Rob and PPE at times
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP.
Thank you for the info.
I keep seeing info on the tuners you have mentioned above. I have a hypertech, and now feel regretful for buying it as it appears to be not very popular. Maybe I can sell it on Ebay and buy one from PPE.
Anybody using a hypertech??
Well maybe I can get on track now that I found all you guys here.
I personally don't own a Hypertech but have not heard anything bad about it...From my understanding Hypertech tunes are not as aggressive as a PPE tune...This is just easier on your drivetrain...PPE tunes 3 and higher can do some damage if you don't do any upgrades on the tranny.
__________________
'06 LBZ
18,000 miles to date
PPE hot +2 e.t (Jan 22,2008) sold on Jul 29,2008, EFILive (July 29,2008), egr block plate,pyrometer and boost gauges,Line-X bedliner, power step, matching door handles (Escalade), billet grille, clear braw to prevent rock chips, led tail lights, high intensity headlamps, two 10" subs, rockford fosgate 1000w amp for subs 5w-40 synthetic engine (Feb.17,2008), 75w-90 synthetic differentials (Feb.17, 2008), fuel additive (Feb.23, 2008)
sick looking truck you got there,what size wheel'n'tire combo do you have and does it have a lift?
I have 305-40-22 Nitto Terra grappler tires on Ultra wheel Titan 8 black rims. The truck is not lifted, just a slight torsion bar adjustment. I also slightly bent back the inner most part of the bottom of the front fenders for clearance.
As far as the wheels go people either like 'em or hate 'em.
I also stripped off all the emblems on my truck.
I personally don't own a Hypertech but have not heard anything bad about it...From my understanding Hypertech tunes are not as aggressive as a PPE tune...This is just easier on your drivetrain...PPE tunes 3 and higher can do some damage if you don't do any upgrades on the tranny.
Good info to know. I have only tried my hypertech on the middle setting so far. I should probably experiment with the other settings before I give up on it. Fuel economy is most important now I guess. Before these fuel prices it was power and recalibrating for bigger tires that I cared about.
Welcome to DF. It does seem the newer trucks aren't getting as good
mpg as the older ones. My neighbors dad just bought a new 08. He's getting 14 and only 9 towing his flatbed trailer.Needless to say he's a little disappointed. He traded in his 04 that was getting 18 and 12 towing. Both trucks were all stock no mods.
__________________ 2005 Chevy 2500 4X4 LLY,LT,CC Dean 285/75/R16
T-Bars Cranked to the MAX
MBRP 4" DownPipe Back
Bully Dog Power Pup
Auto Meter Ultra Lite II
Boost And Pyro on A Pillar
Plugged Resonator
Last edited by wildturkey_hunter : 03-03-2008 at 10:10 PM.
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